摘要
以苦豆子Sophoraalopecuroids 7种生物碱和小菜蛾Plutellaxylostella幼虫为试材 ,研究了该生物碱对小菜蛾体内降解杀虫剂的羧酸酯酶、磷酸酯酶、谷胱甘肽 S 转移酶活性的影响。结果表明 :野靛碱和苦豆碱对羧酸酯酶活性有显著的抑制 ,为可逆抑制类型的非竞争性抑制作用 ;野靛碱等 5种生物碱对酸性磷酸酯酶有明显的抑制 ,野靛碱对碱性磷酸酯酶有弱抑制作用 ;其中野靛碱等 3种生物碱对谷胱甘肽 S 转移酶有明显的抑制作用。
The effects of seven alkaloids from Sophora alopecuroids, a leguminous plant, on metabolic esterases of the larvae of the diamondback moth Plutella xylostella (L.) were studied. The results indicate that cytisine and aloperine could inhibit carboxylesterase activity through non-competitive inhibition. Sophoramine, sophoradine, matrine, oxymatrine and cytisine could inhibit the activity of acid phosphoresterase, and cytisine could also weakly inhibit the activity of alkaline phosphoresterase. In addition, three alkaloids, cytisine, sophramine and sophocarpine could inhibit the activity of glutathione-s-transferase in diamondback moth larvae.
出处
《昆虫学报》
CAS
CSCD
北大核心
2003年第1期122-125,共4页
Acta Entomologica Sinica
基金
山东省教育厅基金资助项目 (J0 0E15 )
关键词
苦豆子
生物碱
杀虫剂
代谢酶
小菜蛾
Sophora alopecuroids
alkaloids
pesticide
metabolic esterase
Plutella xylostella
