Position: Home > Articles > INHIBITION OF ORGANOPHOSPHATE INSECTICIDES TO CARBOXYLESTERASE IN HELICOVERPA ARMIGERA
Acta Entomologica Sinica
1998
(1)
有机磷药剂对棉铃虫羧酸酯酶的抑制作用
作 者：
王旭;高希武;郑炳宗;李海涛
单 位：
上海动植物检疫局;中国农业大学昆虫学系
关键词：
有机磷酸酯，羧酸酯酶，抑制中浓度
摘 要：
该文分别以α乙酸萘酯和β乙酸萘酯为底物比较了２２种常用有机磷药剂对棉铃虫Ｈｅｌｉｃｏｖｅｒｐａａｒｍｉｇｅｒａ羧酸酯酶的抑制作用。结果表明，棉铃虫羧酸酯酶对底物空间构型比较敏感，敌敌畏、对氧磷、地亚农、喹硫磷、马拉氧磷、异稻瘟净、增效磷、杀螟松抑制棉铃虫羧酸酯酶的能力较强。有机磷药剂抑制棉铃虫羧酸酯酶能力与其化学结构显著相关，氧化型的有机磷抑制能力明显强于硫代型的有机磷；乙氧基取代的有机磷抑制能力明显强于甲氧基取代的有机磷。
译 名：
INHIBITION OF ORGANOPHOSPHATE INSECTICIDES TO CARBOXYLESTERASE IN HELICOVERPA ARMIGERA
作 者：
Wang Xu Gao Xiwu Zheng Bingzong Li Haitao (Department of Entomology, China Agricultural University, Beijing 100094)
关键词：
organophosphate insecticide, carboxylesterase, median inhibiting concentration
摘 要：
The inhibition of 22 organophosphates (OP) to the activity of carboxylesterase, using α and β naphthyl acetate as substrate separately, was investigated in cotton bollworms ( Helicoverpa armigera ). The inhibition potential of paraoxon, dichlorvos, SV1,quinalphos, malaoxon, IBP were much stronger than the other insecticides tested. The relationship between chemical structure and the inhibition potential to carboxylesterase was also studied. The inhibition potential was: phosphate > phosphorothionate, phosphorothiolate > phosphorodithioate, phosphoramidate > phosphorothiolamidate and (C 2H 5O) 2OP > (CH 3O) 2OP.
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