华南农业大学学报2017，Vol.38Issue(5)：61-66,6.DOI:10.7671/j.issn.1001-411X.2017.05.011
光叶铁仔提取物对小菜蛾幼虫生长发育的影响
Effects of Myrsine stolonifera extracts on growth and development of Plutella xylostella larvae
摘要
Abstract
[Objective] To study the effects of Myrsine stolonifera extracts on growth and development of Plutella xylostella larvae.[Method] The bioactivities of M.stolonifera root,stem and leaf methanol extracts,and ethanol fractions of methanol extracts through macroporous resin against P.xylostella were determined by disc leaf method.The effects of ethanol fractions of extracts through macroporous resin on P.xylostella growth and development were studied.[Result] The root,stem and leaf methanol extracts ofM.stolonifera and ethanol fractions of extracts through macroporous resin displayed stomach toxicity against P.xylostella.The 50％ ethanol fraction of leaf extracts had the strongest insecticidal activity with an adjusted mortality of 75.56％ after 72 h.The 95％ ethanol fractions of root and stem extracts and 50％ ethanol fractions of leaf extracts showed strong antifeedant activities and growth inhibition effects against P.xylostella larvae,with the antifeedant rates and growth inhibition rates over 90％.The extracts affected pupation and eclosion ofP.xylostella.[Conclusion] M.stolonifera extracts display strong insecticidal activities against P.xylostella larvae.The insecticidal ingredients and mechanisms should be further studied.关键词
光叶铁仔/提取物/小菜蛾/大孔吸附树脂/生长发育/拒食活性Key words
Myrsine stolonifera/extract/Plutella xylostella/macroporous resin/growth and development/antifeedant activity分类
农业科技引用本文复制引用
王学贵,余婷,李倩..光叶铁仔提取物对小菜蛾幼虫生长发育的影响[J].华南农业大学学报,2017,38(5):61-66,6.基金项目
国家自然科学基金(31101493) （31101493）
