|
Nematotoxic activity against freshly hatched Meloidogyne incognita J2 (root-knot nematode) isolated from tomato roots assessed as induction of nematode paralysis at 1000 ug/mL measured 24 hr after immersion in compound test solutions
|
Meloidogyne incognita
|
None
|
|
Journal : J Agric Food Chem
Title : Nematotoxic phenolic compounds from Melia azedarach against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 47
First Page : 11675
Last Page : 11680
Authors : Aoudia H, Ntalli N, Aissani N, Yahiaoui-Zaidi R, Caboni P.
Abstract : In the present study, evaluated was the paralysis activity of whole Italian and Algerian Melia azedarach, commonly known as chinaberry, fruits and parts (seeds, wood, and kernels) against Meloidogyne incognita second stage juveniles (J(2)). The paralysis activity was evaluated in vitro after 1 h and 1 day immersion periods of nematodes in test solutions. Phenolic constituent components of the extracts were identified and quantified by high-performance liquid chromatography-mass spectrometry, while confirmation was performed by high-performance liquid chromatography-diode array. The water extract of the Italian M. azedarach fruit pulp (IPWE) showed significant nematicidal activity (EC(50/48h) = 955 μg/mL) and among its active ingredient components were p-coumaric acid and p-hydroxybenzoic acid (EC(50/48h) = 840 and 871 μg/mL, respectively). This is the first report of the nematicidal activity of M. azedarach pulp water extract and phenolic acids against the root knot nematode M. incognita.
|
Nematotoxic activity against Meloidogyne incognita (root-knot nematode)
|
Meloidogyne incognita
|
46.0
ug.mL-1
|
|
Journal : J Agric Food Chem
Title : Nematotoxic phenolic compounds from Melia azedarach against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 47
First Page : 11675
Last Page : 11680
Authors : Aoudia H, Ntalli N, Aissani N, Yahiaoui-Zaidi R, Caboni P.
Abstract : In the present study, evaluated was the paralysis activity of whole Italian and Algerian Melia azedarach, commonly known as chinaberry, fruits and parts (seeds, wood, and kernels) against Meloidogyne incognita second stage juveniles (J(2)). The paralysis activity was evaluated in vitro after 1 h and 1 day immersion periods of nematodes in test solutions. Phenolic constituent components of the extracts were identified and quantified by high-performance liquid chromatography-mass spectrometry, while confirmation was performed by high-performance liquid chromatography-diode array. The water extract of the Italian M. azedarach fruit pulp (IPWE) showed significant nematicidal activity (EC(50/48h) = 955 μg/mL) and among its active ingredient components were p-coumaric acid and p-hydroxybenzoic acid (EC(50/48h) = 840 and 871 μg/mL, respectively). This is the first report of the nematicidal activity of M. azedarach pulp water extract and phenolic acids against the root knot nematode M. incognita.
|
Antifungal activity against Rhizoctonia solani AG-1 IA assessed as inhibition of mycelial growth at < 10 mg/l relative to control
|
Rhizoctonia solani AG-1 IA
|
None
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Induction of systemic acquired resistance in Glycine max (soybean) plant infected with Rhizoctonia solani AG-1 IA assessed as reduction in disease severity at 2.5 mM applied as spray on day 20 prior to inoculation measured after 5 to 10 days relative to control
|
Glycine max
|
None
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Antifungal activity against Rhizoctonia solani AG-1 IA assessed as mycelial growth at 100 mg/l (Rvb = 40 mm)
|
Rhizoctonia solani AG-1 IA
|
40.0
mm
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Antifungal activity against Rhizoctonia solani AG-1 IA assessed as mycelial growth at 10 mg/l (Rvb = 40 mm)
|
Rhizoctonia solani AG-1 IA
|
40.0
mm
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Antifungal activity against Rhizoctonia solani AG-1 IA assessed as mycelial growth at 1 mg/l (Rvb = 40 mm)
|
Rhizoctonia solani AG-1 IA
|
40.0
mm
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Antifungal activity against Rhizoctonia solani AG-1 IA assessed as mycelial growth at 0.1 mg/l (Rvb = 40 mm)
|
Rhizoctonia solani AG-1 IA
|
40.0
mm
|
|
Journal : Crop Protection
Title : Effect of doses of fungicides and plant resistance activators on the control of Rhizoctonia foliar blight of soybean, and on Rhizoctonia solani AG1-IA in vitro development
Year : 2006
Volume : 25
Issue : 8
First Page : 848
Last Page : 854
Authors : Meyer MC, Bueno CJ, Souza NLde, Yorinori JT.
Abstract : Rhizoctonia foliar blight (RFB) of soybean [Glycine max (L.) Merrill] occurs in many tropical and subtropical regions, causing yield reductions of up to 70% and in Brazil, up to 60%. The disease is caused by Rhizoctonia solani AG1-IA and AG1-IB, and by AG2-3 in Japan. RFB occurs in the North, Northeast and Mid-west regions of Brazil. Chemical control remains the only effective method of controlling RFB, but its efficiency depends upon environmental conditions. In this study, 18 fungicides, salicylic acid (SA) and acibenzolar-s-methyl (ASM) were evaluated on R. solani AG1-IA in vitro, by mycelial growth rating and estimating effective concentration for 50% (EC 50) and 90% (EC 90) inhibition of mycelial growth, and in vivo by reduction of disease severity on soybean plants in greenhouse conditions. Mycelial growth was strongly inhibited by the fungicides pyraclostrobin+boscalid and fludioxonil. Preventive fungicide applications were the most effective. Strobilurins were more efficient both in preventive and curative applications. Best results with plant resistance activators were obtained with SA (2.5 mM) sprayed at 20 d before inoculation and with ASM (12.5 mg a.i. l-1) 10 d before inoculation.
|
Induction of systemic acquired resistance against Pythium debaryanum AUSB 26351 in Gossypium barbadense seeds assessed as increase of fresh weight of seedling under greenhouse condition at 5 mM after 7 days
|
Gossypium barbadense
|
5.4
g
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Blumeria graminis f. sp. tritici in Triticum aestivum (wheat) plants on Kanzler cultivar assessed as decrease in disease severity of powdery mildew in leaves infected with Triticum aestivum (wheat) exposed to 1 mM compound for 3 years by small-plot experiment relative to control
|
Triticum aestivum
|
47.0
%
|
|
Journal : Crop Protection
Title : A comparative study of the efficiency of several sources of induced resistance to powdery mildew (Blumeria graminis f. sp. tritici) in wheat under field conditions
Year : 2009
Volume : 28
Issue : 2
First Page : 151
Last Page : 154
Authors : Vechet Lubomir, Burketova Lenka, Sindelarova Milada.
Abstract : In comparison with untreated controls, both synthetic and biologically sourced inducers of resistance significantly decreased the severity of powdery mildew in a 3-year, small-plot experiment which included other cultivars with varying resistance to powdery mildew as reference, on the susceptible winter wheat cultivar, Kanzler. The most prominent effects were observed following treatments with benzothiadiazole, extracts made of ginger (Zingiber officinale Roscoe) and curcuma (Curcuma longa L.) rhizomes, and giant knotweed (Reynoutria sacchaliensis L.) leaves, which were highly efficient in all 3 years of the experiment. Other inducers such as oak bark (Quercus robur L.) extract, salicylic acid as well as a solution of glycine betaine were also effective. All inducers under study had halted disease progress by 27d after application. The induced resistance was long-lasting and the severity of the disease, when compared with the untreated control, was decreased to between 2% and 53%, depending upon the year.
|
Induction of systemic acquired resistance against Pythium debaryanum AUSB 26351 in Gossypium barbadense seeds assessed as increase of dry weight of seedling under greenhouse condition at 5 mM after 7 days
|
Gossypium barbadense
|
0.2
g
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Pythium debaryanum AUSB 26351 in Gossypium barbadense seeds assessed as reduction of disease index for germination under greenhouse condition at 5 mM after 7 days relative to infected control
|
Gossypium barbadense
|
59.3
%
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Pythium debaryanum AUSB 26351 in Gossypium barbadense seeds assessed as increase of germination under greenhouse condition at 5 mM after 7 days relative to control
|
Gossypium barbadense
|
60.0
%
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Fusarium oxysporum AUSB 26325 in Gossypium barbadense seeds assessed as increase of dry weight of seedling under greenhouse condition at 5 mM after 7 days
|
Gossypium barbadense
|
0.2
g
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Fusarium oxysporum AUSB 26325 in Gossypium barbadense seeds assessed as increase of fresh weight of seedling under greenhouse condition at 5 mM after 7 days
|
Gossypium barbadense
|
2.7
g
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Fusarium oxysporum AUSB 26325 in Gossypium barbadense seeds assessed as reduction of disease index for germination under greenhouse condition at 5 mM after 7 days relative to infected control
|
Gossypium barbadense
|
43.3
%
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Induction of systemic acquired resistance against Fusarium oxysporum AUSB 26325 in Gossypium barbadense seeds assessed as increase of germination under greenhouse condition at 5 mM after 7 days relative to control
|
Gossypium barbadense
|
46.7
%
|
|
Journal : Crop Protection
Title : Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers
Year : 2009
Volume : 28
Issue : 4
First Page : 295
Last Page : 301
Authors : Abo-Elyousr KamalAM, Hashem M, Ali EH.
Abstract : The aim of this study was to evaluate mixtures of bioagents and resistance inducers for protection of cotton roots against root infecting fungal pathogens. Three biological control agents (BCAs); Trichoderma hamatum (TM), Trichoderma harzianum (TZ) and Paecilomyces lilacinus (PL) and two resistance inducers (RIs); Bion (benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester) (BTH), salicylic acid (SA) were applied individually or in combination to test their efficacy in controlling cotton root rot disease caused by Fusarium oxysporum (FO) and Pythium debaryanum (PD) under greenhouse and field conditions. In greenhouse experiments, all applied treatments protected cotton seedlings against FO root rot. Disease index percentage (DI%) was significantly reduced up to 78.8%, while germination percentage increased significantly up to 199.60% compared with the infected control. All treatments significantly reduced PD DI% compared to infected controls. In field experiments, the maximum protection of cotton roots against FO and PD resulted from application of TM+PL+SA+BTH, where DI% was reduced to 72.3% and 69.3% relative to infected controls, respectively. Increase in cell wall fractions (cellulose, hemicelluloses and lignin) resulted from application of both BCAs and RIs in case of PD. Lignin content significantly increased 1.68-1.93 (FO) and 1.07-1.39 (PD) fold over the infected controls. A significant increase in free phenolics content was positively proportional to the degree of plant resistance against the two pathogens. The main conclusion of this study is that by combining BCAs with RIs there was increased consistency of suppression of root rot of cotton seedlings caused by either F. oxysporum or P. debaryanum.
|
Toxicity in Cucurbita pepo (pumpkin) assessed as effect on host weight and height under greenhouse condition at 25 to 50 ug/ml
|
Cucurbita pepo
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Insecticidal activity against Phytophthora capsici in Cucurbita pepo assessed as effect on host weight and height under greenhouse condition at 25 to 50 ug/ml
|
Phytophthora capsici
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Insecticidal activity against Phytophthora capsici in Cucurbita pepo assessed as reduction of disease severity under greenhouse condition at 25 ug/ml after 1 week
|
Phytophthora capsici
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Insecticidal activity against Phytophthora capsici assessed as inhibition of sporangium production at =>100 ug/ml after 4 days
|
Phytophthora capsici
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Insecticidal activity against Phytophthora capsici assessed as inhibition of zoospore germination at 500 to 1000 ug/ml after 4 days with 16 hr photoperiod
|
Phytophthora capsici
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Insecticidal activity against Phytophthora capsici assessed as inhibition of mycelial growth by measuring perpendicular colony diameter at => 100 ug/ml after 8 days
|
Phytophthora capsici
|
None
|
|
Journal : Crop Protection
Title : Evaluation of systemic acquired resistance inducers for control of Phytophthora capsici on squash
Year : 2009
Volume : 28
Issue : 6
First Page : 533
Last Page : 538
Authors : Koné D, Csinos AS, Jackson KL, Ji P.
Abstract : Phytophthora blight induced by Phytophthora capsici is a major constraint in vegetable production worldwide. Limited information is available regarding potential systemic acquired resistance (SAR) inducers that may provide protection of squash (Cucurbita pepo) plants against the disease and the direct effect of the products on the pathogen. In this study, the effect of DL-3-aminobutyric acid (BABA), 2,6-dichloroisonicotinic acid (INA), Saver (a.i. salicylic acid), Syrup (nutrient supplement), and acibenzolar-S-methyl (ASM) on mycelial growth, zoospore germination and sporangium production of P. capsici was evaluated. The products were tested in in vitro studies at concentrations ranging from 25 to 2000@mgml^-^1. Mycelial growth and zoospore germination were generally not significantly affected by BABA and ASM and sporangium production was not significantly affected by BABA. INA and Saver reduced mycelial growth and sporangium production significantly at 100@mgml^-^1 or higher concentrations and zoospore germination at 500 and 1000@mgml^-^1. In greenhouse studies, all the products applied as a soil drench or foliar spray at 25 or 50@mgml^-^1 significantly reduced disease severity on squash, compared with the pathogen-only control, and zoospores at a concentration of 10^3sporesml^-^1 were used to inoculate the leaves. INA, BABA, and ASM also reduced disease significantly when zoospores at 10^3sporesml^-^1 were used to inoculate the root. The results indicated that most of the SAR inducers did not inhibit the growth of the pathogen at concentrations generally recommended for use but had the potential to suppress the disease on squash significantly.
|
Antifeedant activity against Hylobius abietis (pine weevil ) in compound pre-treated Scots pine twig at 50 mM measured after 24 hr by two-choice laboratory bioassay
|
Hylobius abietis
|
21.0
%
|
|
Journal : J Agric Food Chem
Title : Quantitative structure-activity relationships of pine weevil antifeedants, a multivariate approach.
Year : 2007
Volume : 55
Issue : 23
First Page : 9365
Last Page : 9372
Authors : Sunnerheim K, Nordqvist A, Nordlander G, Borg-Karlson AK, Unelius CR, Bohman B, Nordenhem H, Hellqvist C, Karlén A.
Abstract : Antifeedant activity of mainly phenylpropanoic, cinnamic, and benzoic acids esters was tested on the pine weevil, Hylobius abietis (L.). Of 105 compounds screened for activity, 9 phenylpropanoates, 3 cinnamates, and 4 benzoates were found to be highly active antifeedants. To understand the structure-activity relationships of these compounds, a multivariate analysis study was performed. A number of molecular and substituent descriptors were calculated and correlated to results from two-choice feeding tests with H. abietis. Three local models were developed that had good internal predictive ability. External test sets showed moderate predictivity. In general, low polarity, small size, and high lipophilicity were characteristics for compounds having good antifeedant activity.
|
Dissociation constant, pKa of the compound at pH 7.3
|
None
|
4.32
|
|
Journal : J Agric Food Chem
Title : Importance of physicochemical properties for the design of new pesticides.
Year : 2011
Volume : 59
Issue : 7
First Page : 2909
Last Page : 2917
Authors : Akamatsu M.
Abstract : The physicochemical properties of candidate compounds play important roles in the design of new pesticides. Pesticides must be absorbed by pests, be transported to the target site, and then interact with proteins. Hydrophobicity is very important for these processes. Log P, where P is the partition coefficient in the 1-octanol/water system, is commonly used as a hydrophobic descriptor and correlates with membrane permeation and transport. It was recently reported that permeability by the parallel artificial membrane permeation assay (PAMPA) could be used to predict human oral absorption of passively transported compounds. PAMPA, which is a rapid high-throughput screening system, may be useful to predict pesticide absorption because PAMPA permeability can be calculated using log P and other parameters. Electronic and structural properties as well as hydrophobicity are important factors for protein-ligand interaction. To show the importance of physicochemical properties, the classic QSAR and CoMFA of neonicotinoids and prediction of bioavailability of pesticides in terms of membrane permeability in comparison with drugs are described.
|
Apparent hydrophobicity, log D of the compound in Octanol-buffer
|
None
|
-0.63
|
|
Journal : J Agric Food Chem
Title : Importance of physicochemical properties for the design of new pesticides.
Year : 2011
Volume : 59
Issue : 7
First Page : 2909
Last Page : 2917
Authors : Akamatsu M.
Abstract : The physicochemical properties of candidate compounds play important roles in the design of new pesticides. Pesticides must be absorbed by pests, be transported to the target site, and then interact with proteins. Hydrophobicity is very important for these processes. Log P, where P is the partition coefficient in the 1-octanol/water system, is commonly used as a hydrophobic descriptor and correlates with membrane permeation and transport. It was recently reported that permeability by the parallel artificial membrane permeation assay (PAMPA) could be used to predict human oral absorption of passively transported compounds. PAMPA, which is a rapid high-throughput screening system, may be useful to predict pesticide absorption because PAMPA permeability can be calculated using log P and other parameters. Electronic and structural properties as well as hydrophobicity are important factors for protein-ligand interaction. To show the importance of physicochemical properties, the classic QSAR and CoMFA of neonicotinoids and prediction of bioavailability of pesticides in terms of membrane permeability in comparison with drugs are described.
|
Apparent permeability of the compound by PAMPA
|
None
|
-5.92
|
|
Journal : J Agric Food Chem
Title : Importance of physicochemical properties for the design of new pesticides.
Year : 2011
Volume : 59
Issue : 7
First Page : 2909
Last Page : 2917
Authors : Akamatsu M.
Abstract : The physicochemical properties of candidate compounds play important roles in the design of new pesticides. Pesticides must be absorbed by pests, be transported to the target site, and then interact with proteins. Hydrophobicity is very important for these processes. Log P, where P is the partition coefficient in the 1-octanol/water system, is commonly used as a hydrophobic descriptor and correlates with membrane permeation and transport. It was recently reported that permeability by the parallel artificial membrane permeation assay (PAMPA) could be used to predict human oral absorption of passively transported compounds. PAMPA, which is a rapid high-throughput screening system, may be useful to predict pesticide absorption because PAMPA permeability can be calculated using log P and other parameters. Electronic and structural properties as well as hydrophobicity are important factors for protein-ligand interaction. To show the importance of physicochemical properties, the classic QSAR and CoMFA of neonicotinoids and prediction of bioavailability of pesticides in terms of membrane permeability in comparison with drugs are described.
|
Hydrophobicity, log P of the compound in octanol-water by shaking-flask method
|
None
|
2.26
|
|
Journal : J Agric Food Chem
Title : Importance of physicochemical properties for the design of new pesticides.
Year : 2011
Volume : 59
Issue : 7
First Page : 2909
Last Page : 2917
Authors : Akamatsu M.
Abstract : The physicochemical properties of candidate compounds play important roles in the design of new pesticides. Pesticides must be absorbed by pests, be transported to the target site, and then interact with proteins. Hydrophobicity is very important for these processes. Log P, where P is the partition coefficient in the 1-octanol/water system, is commonly used as a hydrophobic descriptor and correlates with membrane permeation and transport. It was recently reported that permeability by the parallel artificial membrane permeation assay (PAMPA) could be used to predict human oral absorption of passively transported compounds. PAMPA, which is a rapid high-throughput screening system, may be useful to predict pesticide absorption because PAMPA permeability can be calculated using log P and other parameters. Electronic and structural properties as well as hydrophobicity are important factors for protein-ligand interaction. To show the importance of physicochemical properties, the classic QSAR and CoMFA of neonicotinoids and prediction of bioavailability of pesticides in terms of membrane permeability in comparison with drugs are described.
|
Toxicity in po dosed Rattus norvegicus (rat)
|
Rattus norvegicus
|
6.79
|
|
Journal : Med Chem Res
Title : Study on the quantitative structuretoxicity relationships of benzoic acid derivatives in rats via oral LD50
Year : 2009
Volume : 18
Issue : 9
First Page : 712
Last Page : 724
Authors : Sun Y, Li Z, Yan X, Wang L, Meng F
|
Increase of new ploypeptide content in Curcuma longa (turmeric) plant rhizomes at 0.5 to 1 mM after 1 to 2 hr by SDS-PAGE analysis
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected turmeric plant rhizomes assessed as increase of peroxidase activity at 0.5 mM after 2 to 10 days
|
Pythium aphanidermatum
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected turmeric plant rhizomes assessed as increase of trypsin inhibitor activity at 0.5 mM after 2 to 10 days relative to control
|
Pythium aphanidermatum
|
3.0
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected turmeric plant rhizomes assessed as increase of chymotrypsin inhibitor activity at 0.5 mM after 2 to 10 days relative to control
|
Pythium aphanidermatum
|
3.0
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected turmeric plant rhizomes assessed as increase of chymotrypsin inhibitor activity at 0.5 mM after 2 to 6 days
|
Pythium aphanidermatum
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of chymotrypsin inhibitor activity in Curcuma longa (turmeric) plant rhizomes at 0.5 to 1 mM after 30 min to 2 hr
|
Curcuma longa
|
2.0
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of trypsin inhibitor activity in Curcuma longa (turmeric) plant rhizomes at 0.5 mM after 30 to 60 min
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected in turmeric plant rhizomes assessed as reduction of cell death at 0.5 to 1 mM after 2 to 8 days
|
Pythium aphanidermatum
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of soluble peroxidase activity in Curcuma longa (turmeric) plant rhizomes at 0.5 mM after 2 hr
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of ionically bound peroxidase activity in Curcuma longa (turmeric) plant rhizomes at 1 mM after 2 hr
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of ionically bound peroxidase activity in Curcuma longa (turmeric) plant rhizomes at 0.5 mM after 2 hr relative to control
|
Curcuma longa
|
3.0
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of soluble peroxidase activity in Curcuma longa (turmeric) plant rhizomes at 0.5 mM after 1 hr relative to control
|
Curcuma longa
|
2.0
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of soluble peroxidase activity in Curcuma longa (turmeric) plant rhizomes at 0.5 to 1 mM after 15 min
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of protein content in Curcuma longa (turmeric) plant rhizomes at 1 mM
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Increase of protein content in Curcuma longa (turmeric) plant rhizomes at 1 mM up to 1 hr
|
Curcuma longa
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antimicrobial activity against Pythium aphanidermatum infected turmeric plant rhizomes assessed as increase of trypsin inhibitor activity at 0.5 mM after 2 to 8 days
|
Pythium aphanidermatum
|
None
|
|
Journal : Crop Protection
Title : Salicylic acid induced defence responses in Curcuma longa (L.) against Pythium aphanidermatum infection
Year : 2009
Volume : 28
Issue : 11
First Page : 974
Last Page : 979
Authors : Radhakrishnan N, Balasubramanian R.
Abstract : The soilborne Oomycete, Pythium aphanidermatum is the causal agent of rhizome rot disease, one of the most serious threats to turmeric crops in India. At present, effective fungicides are not available. Here we report the enhanced resistance response induced by salicylic acid (SA) in susceptible turmeric plants. The enzymatic activities of pathogenesis related (PR) proteins in control and SA treated turmeric plants were measured. SA pretreatment elicited marked increases in the activity levels of protease, trypsin and chymotrypsin inhibitors, soluble and ionically bound peroxidase activity. Such an increase in enzyme activities and protease inhibitors was enhanced and occurred much more rapidly in P. aphanidermatum infected rhizomes than those that were previously treated with SA (0.5 mM) suggesting that increased activities of peroxidases and protease inhibitors may play a role in restricting the development of disease symptoms in the rhizomes infected with P. aphanidermatum as evidenced by reduction in cell death. SA also induced new polypeptides in turmeric rhizomes corresponding to 19.0 and 41.0 kDa. The results demonstrated that SA is an effective resistance activator in turmeric, and a potentially useful agent for the control of rhizome rot disease.
|
Antibacterial activity against Ralstonia solanacearum grown on potato semi-synthetic agar medium at 5 umol/disk by paper disk method
|
Ralstonia solanacearum
|
16.0
mm
|
|
Journal : J Pesticide Sci
Title : Antibacterial activity of alkyl gallates and related compounds against Ralstonia solanacearum
Year : 2011
Volume : 36
Issue : 2
First Page : 240
Last Page : 242
Authors : Ooshiro A, Kaji M, Katoh Y, Kawaide H, Natsume M
|
Antibacterial activity against Ralstonia solanacearum grown on potato semi-synthetic agar medium at 0.5 umol/disk by paper disk method
|
Ralstonia solanacearum
|
None
|
|
Journal : J Pesticide Sci
Title : Antibacterial activity of alkyl gallates and related compounds against Ralstonia solanacearum
Year : 2011
Volume : 36
Issue : 2
First Page : 240
Last Page : 242
Authors : Ooshiro A, Kaji M, Katoh Y, Kawaide H, Natsume M
|
Induction of systemic resistance (ISR) activity in Nicotiana tabacum (tobacco) seedlings against pectobacterium carotovorum subsp. carotovorum SCC1 assessed as decrease in disease symptoms on leaves at 1 mM applied to roots prior to leaf infection with SCC1 measured at 3 days after pathogen challenge
|
Nicotiana tabacum
|
None
|
|
Journal : Pest Manag Sci
Title : Identification of an ISR-related metabolite produced by rhizobacterium Klebsiella oxytoca C1036 active against soft-rot disease pathogen in tobacco.
Year : 2009
Volume : 65
Issue : 10
First Page : 1114
Last Page : 1117
Authors : Park MR, Kim YC, Lee S, Kim IS.
Abstract : BACKGROUND: Klebsiella oxytoca C1036 (C1036) causes induced systemic resistance (ISR) activity against the soft-rot pathogen Pectobacterium carotovorum subsp. carotovorum SCC1 (SCC1). However, microbial metabolites from C1036 involved in ISR activity remain unknown. The present study was performed to identify an ISR-related metabolite produced by C1036. RESULTS: The supernatants of C1036 cultures grown on Luria-Bertani medium were subjected to solvent extraction, repeated column chromatography and preparative liquid chromatography for isolation of an ISR-related metabolite. High-resolution mass spectrometer analysis of the isolated metabolite indicated a C9H15O3N compound with a mass of 185.11. Low-resolution mass spectrometer analysis of the metabolite showed a molecular ion peak at 185 and its fragment ions at 84 and 56. Nuclear magnetic resonance spectrometer analyses characterised all protons and carbons of the isolated metabolite. Based on the data, the isolated metabolite was determined to be butyl 2-pyrrolidone-5-carboxylate (BPC). BPC at 12 mM significantly suppressed the disease symptoms in ISR bioassays against SCC1. CONCLUSION: This is the first report identifying BPC as an ISR-related metabolite produced by C1036. C1036 may play a role in promoting plant growth because it produces ISR-related metabolites against the plant pathogen SCC1.
|
Decrease in Botryosphaeria dothidea ligninolytic enzyme production assessed as pectinase activity using pectin as substrate at 1 mM measured at 28 degC after 4 days
|
Botryosphaeria dothidea
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Decrease in Neofusicoccum ribis ligninolytic enzyme production assessed as pectinase activity using pectin as substrate measured at 28 degC after 4 days
|
Neofusicoccum ribis
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Decrease in Botryosphaeria dothidea ligninolytic enzyme production assessed as laccase activity using ABTS as substrate at 15 mM measured at 28 degC after 4 days
|
Botryosphaeria dothidea
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Decrease in Botryosphaeria dothidea ligninolytic enzyme production assessed as laccase activity using ABTS as substrate measured at 28 degC after 4 days
|
Botryosphaeria dothidea
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Diplodia seriata (Schwein.) Shoemaker mycelium growth at 15 mM measured at 28 degC after 4 days
|
Diplodia seriata
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Neofusicoccum ribis mycelium growth at 20 mM measured at 28 degC after 4 days
|
Neofusicoccum ribis
|
None
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Lasiodiplodia theobromae mycelium growth at 25 mM measured at 28 degC after 4 days
|
Lasiodiplodia theobromae
|
100.0
%
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Lasiodiplodia theobromae mycelium growth measured at 28 degC after 4 days
|
Lasiodiplodia theobromae
|
5000000.0
nM
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Neofusicoccum ribis mycelium growth measured at 28 degC after 4 days
|
Neofusicoccum ribis
|
5000000.0
nM
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Diplodia seriata (Schwein.) Shoemaker mycelium growth measured at 28 degC after 4 days
|
Diplodia seriata
|
5000000.0
nM
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
|
Inhibition of Botryosphaeria dothidea mycelium growth measured at 28 degC after 4 days
|
Botryosphaeria dothidea
|
5000000.0
nM
|
|
Journal : Crop Protection
Title : Effect of phenolic compounds on growth and ligninolytic enzyme production in Botryosphaeria isolates
Year : 2013
Volume : 43
First Page : 146
Last Page : 156
Authors : Srivastava P, David L. Wright, James J. Marois, Mrittunjai Srivastava, Peter C. Andersen, Philip F. Harmon.
Abstract : Botryosphaeria spp. are ligninolytic ascomyceteous fungi that incite many diseases in economically important woody plant species. Four Botryosphaeria isolates, Botryosphaeria rhodina (Lasiodiplodia theobromae), Botryosphaeria obtusa, Botryosphaeria dothidea and Botryosphaeria ribis (Neofusicoccum ribis) were used in this study. Ten naturally occurring phenolic compounds from plants were tested to evaluate their effect on mycelium growth and the production of ligninolytic and pectinolytic enzymes. The effect of phenolic compounds in vitro varied with the Botryosphaeria isolates. Inhibition of mycelium growth was dose-dependent, and varied from 2 to 100% inhibition in the ten phenolic compounds tested except syringic acid, which has no toxic effect on mycelium of Botryosphaeria isolates. A significant decrease in laccase production occurred when Botryosphaeria isolates were grown on phenolic compounds. Benzoic acid significantly inhibited pectinase activity in all isolates. The percent inhibition of pectinase activity in B. dothidea and B. obtusa was significantly increased in the presence of salicylic acid and syringic acid, respectively.
