溴氰菊酯和辛硫磷亚致死剂量对甜菜夜蛾酶活性的影响  

Effect of Sublethal Doses of Deltamethrin and Phoxim on Enzyme Activity of Beet Armyworm

作　　者：张元建[1] 王真[1] 竹傲[1] 朱福兴[1] 

机构地区：[1]华中农业大学植物科学技术学院,湖北武汉430070

出　　处：《天津农业科学》2009年第5期37-40,共4页Tianjin Agricultural Sciences

基　　金：国家自然科学基金资助项目(30771412)

摘　　要：研究了溴氰菊酯和辛硫磷亚致死剂量处理后,甜菜夜蛾羧酸酯酶(CarE)、谷胱甘肽S-转移酶(GST)、乙酰胆碱酯酶(AChE)的活性变化规律,结果表明:经辛硫磷亚致死剂量5.20mg/kg和溴氰菊酯亚致死剂量0.73mg/kg处理后,甜菜夜蛾体内CarE和GST均被不同程度的抑制,辛硫磷处理后24h时与对照相比AChE活性下降了24.87%,而溴氰菊酯对AChE活性没有明显抑制作用。Effect of sublethal doses of deltamethrin and phoxim on activities of carboxylesterase,glutathione s-transferase and acetylcholinesterase of beet armyworm, Spodoptera exigua （Hübner） were measured. There was a significant decline in CarE and GST activities 24 to 72 hours after treated with sublethal concentration of phoxim and deltamethrin. As for AChE, the activity decreased by 24.87% when compared with the check 24 hours after treated with sublethal concentration of phoxim, while sublethal concentration of deltamethrin had no significant inhibition on AChE activity.

关 键 词：甜菜夜蛾 亚致死剂量 羧酸酯酶 谷胱甘肽S-转移酶 乙酰胆碱酯酶 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] Q965.9[农业科学—植物保护]