植物源农药防治根结线虫研究进展

Research Progresses on the Prevention and Control of Meloidogyne spp. by Botanical Nematocides

根结线虫的防治是目前线虫研究领域的热点。近年来植物源农药防治根结线虫已引起了国内外学者的广泛关注,已报道的具有杀线活性的植物约有300多种。作用方式有利用植物源提取液和植物源材料粉末处理土壤。有效化学成分包括生物碱类、生物类黄酮、萜烯类和其他化合物。作用机制包括影响线虫体内营养物质含量,影响抗氧化酶系活性,影响神经系统兴奋传导和损伤线虫体壁、消化道等。提出了目前存在的问题及对未来发展前景的展望。

Studies on the prevention and control of Meloidogyne spp.are the hotspots in the field of nematode research at present and it has been widely concerned preventing and controlling Meloidogyne spp.by botanical nematocides at home and abroad.More than 300 plant species with nematicidal activity have been reported concerning the application of botanical extracts and powders.The active ingredients include alkaloids,bioflavonoids,terpenes and other compounds.The mechanisms may influence the nutrient contents and the activity of antioxidant enzymes,damaging the nervous system excitatory transmission and injuring nematode body wall and digestive tract and so on.In addition,the present problems were proposed and the future developments were prospected.