Chemical Composition and Evaluation of the Nematicidal Activity of Datura metel Seed Oil against Meloidogyne javanica  

作　　者：Médoune Mbaye Cheikh Sall Djibril Djigal Ousmane Faye Mamadou Soumboundou Awa Ndong Malick Ndao Serigne Modou Sylla Diégane Sarr Médoune Mbaye;Cheikh Sall;Djibril Djigal;Ousmane Faye;Mamadou Soumboundou;Awa Ndong;Malick Ndao;Serigne Modou Sylla;Diégane Sarr(Chemistry Laboratory, UMRED, UFR Sant, Universit Iba Der Thiam de This, Thies, Senegal;Nematology Laboratory, ISRA/CDH Sangalkam Research CENTER, Sangalkam, Senegal;Equipe des Matriaux, Electrochimie et Photochimie Analytique, Universit Alioune Diop, Bambey, Senegal)

机构地区：[1]Chemistry Laboratory, UMRED, UFR Sant, Universit Iba Der Thiam de This, Thies, Senegal [2]Nematology Laboratory, ISRA/CDH Sangalkam Research CENTER, Sangalkam, Senegal [3]Equipe des Matriaux, Electrochimie et Photochimie Analytique, Universit Alioune Diop, Bambey, Senegal

出　　处：《Journal of Agricultural Chemistry and Environment》2025年第1期90-101,共12页农业化学和环境(英文)

摘　　要：Today, agricultural production is threatened by crop pathogens, including plant-parasitic nematodes. Because of their harmful effects on the environment and human health, synthetic nematicides are gradually being banned in several countries. This study evaluates the nematicidal activity of Datura metel oil. Datura metel seed oil was obtained using the Soxhlet extractor in hexane. The resulting oil was characterized by determining physicochemical parameters and molecular composition using GC-MS. The nematicidal activity of the oil was assessed by determining the number of dead nematodes. Physicochemical characterization gave an acidity index of 0.3% and a peroxide index of 10 meq.O2/Kg, while GC-MS analysis identified 30 molecules made up mainly of fatty acid esters, four of which represented over 74% of the oil’s total weight. The nematicidal activity of the oil, expressed in terms of mortality rate as a function of concentration, showed mortality rates of 58;69 and 79% over 48 hours of incubation at concentrations of 25, 50 and 100 µg/mL respectively. The activity observed could be linked to the high presence of the four compounds most commonly identified in the oil. These results suggest that Datura metel oil could be a promising alternative to synthetic pesticides for the control of crop pests.Today, agricultural production is threatened by crop pathogens, including plant-parasitic nematodes. Because of their harmful effects on the environment and human health, synthetic nematicides are gradually being banned in several countries. This study evaluates the nematicidal activity of Datura metel oil. Datura metel seed oil was obtained using the Soxhlet extractor in hexane. The resulting oil was characterized by determining physicochemical parameters and molecular composition using GC-MS. The nematicidal activity of the oil was assessed by determining the number of dead nematodes. Physicochemical characterization gave an acidity index of 0.3% and a peroxide index of 10 meq.O2/Kg, while GC-MS analysis identified 30 molecules made up mainly of fatty acid esters, four of which represented over 74% of the oil’s total weight. The nematicidal activity of the oil, expressed in terms of mortality rate as a function of concentration, showed mortality rates of 58;69 and 79% over 48 hours of incubation at concentrations of 25, 50 and 100 µg/mL respectively. The activity observed could be linked to the high presence of the four compounds most commonly identified in the oil. These results suggest that Datura metel oil could be a promising alternative to synthetic pesticides for the control of crop pests.

关 键 词：Nematodes Meloidogyne javanica Datura metel Bio-Pesticides 

分 类 号：F42[经济管理—产业经济]