|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 2000 umol/L after 24 hr Rvb = 1.47 to 2.51%)
|
Meloidogyne incognita
|
4.44
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 2000 umol/L after 12 hr (Rvb = 1.79 to 3.30%)
|
Meloidogyne incognita
|
2.02
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 1000 umol/L after 24 hr Rvb = 1.47 to 2.51%)
|
Meloidogyne incognita
|
2.29
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 1000 umol/L after 12 hr (Rvb = 1.79 to 3.30%)
|
Meloidogyne incognita
|
1.09
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 100 umol/L after 24 hr (Rvb = 1.47 to 2.51%)
|
Meloidogyne incognita
|
1.5
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against second-stage juvenile of Meloidogyne incognita (root-knot nematode) assessed as mortality at 25 degC at 100 umol/L after 12 hr (Rvb = 1.79 to 3.30%)
|
Meloidogyne incognita
|
0.39
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 2000 umol/L on day 21 (SDW control = 44.87 +/- 3.93%)
|
Meloidogyne incognita
|
19.67
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 1000 umol/L on day 21 (SDW control = 44.87 +/- 3.93%)
|
Meloidogyne incognita
|
21.2
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 100 umol/L on day 21 (SDW control = 44.87 +/- 3.93%)
|
Meloidogyne incognita
|
15.97
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 2000 umol/L on day 14 (SDW control = 35.77 +/- 4.48%)
|
Meloidogyne incognita
|
14.4
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 1000 umol/L on day 14 (SDW control = 35.77 +/- 4.48%)
|
Meloidogyne incognita
|
16.67
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 100 umol/L on day 14 (SDW control = 35.77 +/- 4.48%)
|
Meloidogyne incognita
|
9.57
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 2000 umol/L on day 7 (SDW control = 12.63 +/- 3.84%)
|
Meloidogyne incognita
|
6.4
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 1000 umol/L on day 7 (SDW control = 12.63 +/- 3.84%)
|
Meloidogyne incognita
|
7.67
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 100 umol/L on day 7 (SDW control = 12.63 +/- 3.84%)
|
Meloidogyne incognita
|
2.97
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 2000 umol/L on day 3 (SDW control = 0.57 +/- 0.37%)
|
Meloidogyne incognita
|
0.8
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) assessed as cumulative percentage of egg hatching at 25 degC at 1000 umol/L on day 3 (SDW control = 0.57 +/- 0.37%)
|
Meloidogyne incognita
|
2.77
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematicidal activity against Meloidogyne incognita (root-knot nematode) root-knot nematodes assessed as cumulative percentage of egg hatching at 25 degC at 100 umol/L on day 3 (SDW control = 0.57 +/- 0.37%)
|
Meloidogyne incognita
|
0.87
%
|
|
Journal : J Agric Food Chem
Title : Potential antagonistic effects of nine natural fatty acids against Meloidogyne incognita.
Year : 2012
Volume : 60
Issue : 46
First Page : 11631
Last Page : 11637
Authors : Zhang WP, Ruan WB, Deng YY, Gao YB.
Abstract : Fatty acids, the essential components of life, were widely present in various seed cakes, gutter oil, and other resources. The objective of this study was to evaluate the potential antagonistic effects of nine fatty acids (FAs) against Meloidogyne incognita (root-knot nematodes). The results showed that butyric, caprylic, capric, lauric, myristic, palmitic, and oleic acids significantly reduced M. incognita reproduction, whereas cucumber (Cucumus sativus) biomass was not adversely affected by the tested FAs and was even significantly increased in several fatty acids treatments. All nine tested fatty acids showed apparent inhibitory effects on egg hatching on day 21, especially capric acid with which the hatching rate was reduced to 15.8% as compared to that using sterile distilled water. Caproic, caprylic, capric, lauric, myristic, and palmitic acids caused significantly higher mortality of the second-stage juvenile of M. incognita than the other three FAs, and both caprylic and capric acids resulted in approximately 50% mortality (2000 μmol/L) after a 24 h exposure. In conclusion, fatty acids showed the nematicidal effect differently, among which capric acid showed a strong nematicidal effect and might be a powerful active substance for integrated M. incognita management. Given the general nematicidal properties of FAs, farmers might utilize waste resources, such as oil seed cake, gutter oil, etc., containing various FAs or use pure FAs for effective M. incognita management.
|
Nematotoxic activity against freshly hatched Meloidogyne incognita J2 (root-knot nematode) isolated from tomato roots assessed as induction of nematode paralysis measured 24 hr after immersion in compound test solutions
|
Meloidogyne incognita
|
41.1
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.
|
Nematotoxic activity against Meloidogyne incognita (root-knot nematode)
|
Meloidogyne incognita
|
38.3
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.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as seed germination at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Lolium rigidum
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as shoot length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Lolium rigidum
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as root length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Lolium rigidum
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as seed germination at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Raphanus sativus
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as shoot length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Raphanus sativus
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as root length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to 1,8-Cineole
|
Raphanus sativus
|
None
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as seed germination at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Lolium rigidum
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as shoot length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Lolium rigidum
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as root length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Lolium rigidum
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as seed germination at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Raphanus sativus
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as shoot length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Raphanus sativus
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as root length at 0.1 mol/l at 25 degC after 72 hr by laboratory-based agar medium bioassay relative to control
|
Raphanus sativus
|
0.0
%
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as concentration required to suppress shoot growth at 25 degC after 72 hr by laboratory-based agar medium bioassay
|
Lolium rigidum
|
0.0001
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as concentration required to suppress seed germination at 25 degC after 72 hr by laboratory-based agar medium bioassay
|
Lolium rigidum
|
0.01
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Lolium rigidum seeds assessed as concentration required to suppress root growth at 25 degC after 72 hr by laboratory-based agar medium bioassay
|
Lolium rigidum
|
0.0001
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as concentration required to suppress seed germination at 25 degC after 72 hr by laboratory-based agar medium bioassay
|
Raphanus sativus
|
0.1
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
|
Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as concentration required to suppress shoot growth at 25 degC after 72 hr by laboratory-based agar medium bioassay
|
Raphanus sativus
|
0.1
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
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Pre-emergence herbicidal activity against Raphanus sativus var.Long scarlet (radish) seeds assessed as concentration required to suppress root growth at 25 degC after 72 hr by laboratory-based agar medium bioassay
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Raphanus sativus
|
0.001
mol/L
|
|
Journal : J Agric Food Chem
Title : Herbicidal activity of cineole derivatives.
Year : 2010
Volume : 58
Issue : 18
First Page : 10147
Last Page : 10155
Authors : Barton AF, Dell B, Knight AR.
Abstract : Essential oils and their constituents have potential as ecologically acceptable pesticides that may also have novel modes of action. In this work hydroxy and ester derivatives of the naturally occurring monoterpenoids 1,8-cineole 3, the main component in most eucalyptus oils, and 1,4-cineole 4 were prepared and their pre-emergence herbicidal activity against annual ryegrass (Lolium rigidum) and radish (Raphanus sativus var. Long Scarlet) investigated in laboratory-based bioassays. 1,8-Cineole, eucalyptus oil and all derivatives showed a dose-dependent herbicidal activity against annual ryegrass and radish with many of the derivatives showing improved herbicidal activity relative to 1,8-cineole and high-cineole eucalyptus oil. Increased activity of cineole ester derivatives compared to their associated hydroxy-cineole and carboxylic acid was not observed. No relationship between lipophilicity of the carboxylic acid portion of cineole ester derivatives and herbicidal activity was observed. The results indicate that these cineole derivatives could be environmentally acceptable herbicides.
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Nematicidal activity against Meloidogyne incognita J2 (root-knot nematode) assessed as paralysis measured after 1 day at 28 degC
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Meloidogyne incognita
|
41.1
ug.mL-1
|
|
Journal : J Agric Food Chem
Title : nematicidal carboxylic acids and aldehydes from Melia azedarach fruits.
Year : 2010
Volume : 58
Issue : 21
First Page : 11390
Last Page : 11394
Authors : Ntalli NG, Vargiu S, Menkissoglu-Spiroudi U, Caboni P.
Abstract : Melia azedarach is a species gaining scientific interest mostly concerning its range of biological activities against agricultural target pests. The nematicidal melia methanol extract (MME) obtained from the fruits, acting against the phytonematode Meloidogyne incognita , is herein reported to contain hexadecanoic, acetic, and hexanoic acids as well as furfural, 5-hydroxymethylfurfural, 5-methylfurfural, and furfurol. All compounds were tested individually for nematicidal activity against the nematode second-stage juveniles, in paralysis experiments. The nematicidal activity was studied both after nematodes' immersion in treatment solutions and after exposure to test substance vapors. Clear dose and time response relationships were established at the dose ranges of 31.2-500 and 1-100 μg/mL, concerning the aldehydes and carboxylic acids, respectively, implementing analogous predominance of nematicidal activity. Nevertheless, no synergistic effects were observed in respective mixture interaction bioassays among furfural, 5-hydroxymethylfurfural, 5-methylfurfural, and furfurol. Furfural was the most active bionematicidal compound reported herein for the first time as a natural constituent of M. azedarach.
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Nematicidal activity against Meloidogyne incognita J2 (root-knot nematode) assessed as paralysis measured after 1 hr at 28 degC
|
Meloidogyne incognita
|
88.7
ug.mL-1
|
|
Journal : J Agric Food Chem
Title : nematicidal carboxylic acids and aldehydes from Melia azedarach fruits.
Year : 2010
Volume : 58
Issue : 21
First Page : 11390
Last Page : 11394
Authors : Ntalli NG, Vargiu S, Menkissoglu-Spiroudi U, Caboni P.
Abstract : Melia azedarach is a species gaining scientific interest mostly concerning its range of biological activities against agricultural target pests. The nematicidal melia methanol extract (MME) obtained from the fruits, acting against the phytonematode Meloidogyne incognita , is herein reported to contain hexadecanoic, acetic, and hexanoic acids as well as furfural, 5-hydroxymethylfurfural, 5-methylfurfural, and furfurol. All compounds were tested individually for nematicidal activity against the nematode second-stage juveniles, in paralysis experiments. The nematicidal activity was studied both after nematodes' immersion in treatment solutions and after exposure to test substance vapors. Clear dose and time response relationships were established at the dose ranges of 31.2-500 and 1-100 μg/mL, concerning the aldehydes and carboxylic acids, respectively, implementing analogous predominance of nematicidal activity. Nevertheless, no synergistic effects were observed in respective mixture interaction bioassays among furfural, 5-hydroxymethylfurfural, 5-methylfurfural, and furfurol. Furfural was the most active bionematicidal compound reported herein for the first time as a natural constituent of M. azedarach.
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Nematicidal activity against Bursaphelenchus xylophilus at 0.5 mg/ml measured after 48 hr under microscope
|
Bursaphelenchus xylophilus
|
31.3
%
|
|
Journal : J Agric Food Chem
Title : Structure-activity relationship of aliphatic compounds for nematicidal activity against pine wood nematode (Bursaphelenchus xylophilus).
Year : 2010
Volume : 58
Issue : 3
First Page : 1823
Last Page : 1827
Authors : Seo SM, Kim J, Kim E, Park HM, Kim YJ, Park IK.
Abstract : Nematicidal activity of aliphatic compounds was tested to determine a structure-activity relationship. There was a significant difference in nematicidal activity among functional groups. In a test with alkanols and 2E-alkenols, compounds with C(8)-C(11) chain length showed 100% nematicidal activity against pine wood nematode, Bursaphelenchus xylophilus , at 0.5 mg/mL concentration. C(6)-C(10) 2E-alkenals exhibited >95% nematicidal activity, but the other compounds with C(11)-C(14) chain length showed weak activity. Nematicidal activity of alkyl acetates with C(7)-C(11) chain length was strong. Compounds belonging to hydrocarbons, alkanals, and alkanoic acetates showed weak activity at 0.5 mg/mL concentration. Nematicidal activity of active compounds was determined at lower concentrations. At 0.25 mg/mL concentration, whole compounds except C(8) alkanol, C(8) 2E-alkenol, and C(7) alkanoic acid showed >80% nematicidal activity. C(9)-C(11) alkanols, C(10)-C(11) 2E-alkenols, C(8)-C(9) 2E-alkenals, and C(9)-C(10) alkanoic acids showed >80% nematicidal activity at 0.125 mg/mL concentration. Only C(11) alkanol exhibited strong nematicidal activity at 0.0625 mg/mL concentration, the lowest concentration that was tested.
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Antifungal activity against Zygosaccharomyces bailii assessed as growth inhibition measured after 48 hr by macrodilution assay
|
Zygosaccharomyces bailii
|
3200.0
ug.mL-1
|
|
Antifungal activity against Zygosaccharomyces bailii assessed as growth inhibition measured after 48 hr by macrodilution assay
|
Zygosaccharomyces bailii
|
800.0
ug ml-1
|
|
Journal : J Agric Food Chem
Title : Naturally occurring antifungal agents against Zygosaccharomyces bailii and their synergism.
Year : 2005
Volume : 53
Issue : 13
First Page : 5187
Last Page : 5191
Authors : Fujita K, Kubo I.
Abstract : Polygodial was found to exhibit a fungicidal activity against a food spoilage yeast, Zygosaccharomyces bailii, with the minimum fungicidal concentration (MFC) of 50 microg/mL (0.17 mM). The time-kill curve study showed that polygodial was fungicidal at any growth stage. The primary action of polygodial comes from its ability to disrupt the native membrane-associated function of integral proteins as nonionic surface active agents (surfactants) followed by a decrease in plasma membrane fluidity. The fungicidal activity of polygodial was increased 128-fold in combination with a sublethal amount (equivalent of 1/2 MFC) of anethole and vice versa relative to the fungicidal activity of anethole. The fungicidal activity of sorbic acid was enhanced 512-fold in combination with 1/2 MFC of polygodial. Conversely, the fungicidal activity of polygodial was enhanced 128-fold in combination with 1/2 MFC of sorbic acid.
