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几种昆虫体内保护酶系统活力的研究
引用本文:李周直,沈惠娟.几种昆虫体内保护酶系统活力的研究[J].昆虫学报,1994,37(4):399-403.
作者姓名:李周直  沈惠娟
作者单位:南京林业大学
摘    要:菜粉蝶(Pieris rapae)体内存在着超氧物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶POD)等保护酶系统,SOD活力水平与虫龄关系密切。溴氰菊酯处理菜粉蝶后10分钟,SOD、CAT及POD的活力水平均高于正常虫体。溴氰菊酯处理褐边绿刺蛾 (Parasa consocia) 和褐刺蛾 (Thoseapastornata)后,中毒的虫体内SOD及CAT活力随着中毒程度加重而逐渐上升,接近死亡时又急剧下降;未中毒的活虫体内SOD及CAT活力水平比对照活虫为高,表明与昆虫耐药性有关。在褐边绿刺蛾和褐刺蛾体内未测得POD。

关 键 词:菜粉蝶  刺蛾  超氧物歧化酶  过氧化氢酶  过氧化物酶  

A STUDY ON THE ACTIVITIES OF ENDOGENOUS ENZYMESOF PROTECTIVE SYSTEM IN SOME INSECTS
LI ZHOU-ZHI, SHEN HUI-JUAN, JIANG QIAO-Gan, JI BAO-ZHONG.A STUDY ON THE ACTIVITIES OF ENDOGENOUS ENZYMESOF PROTECTIVE SYSTEM IN SOME INSECTS[J].Acta Entomologica Sinica,1994,37(4):399-403.
Authors:LI ZHOU-ZHI  SHEN HUI-JUAN  JIANG QIAO-Gan  JI BAO-ZHONG
Abstract:he endogenous enzymes of protective system including superoxide dismutase(SOD), peroxidase (POD) and catalase (CAT) were found to exist in the larvae ofPieris rapae. The level of SOD activity of the larva was closely correlated with theinstars. After applying deltamethrin to the larvae, the levels of SOD, CAT and PODactivity were found to be higher than that of the control within one hour. Whendeltamethrin was applied to the slug caterpillars Parasa consocia and Thosea pasto-rnata, the SOD and CAT activities were ellhanced gradually with the degree of poiso-ning, but declined rapidly near death. However, the SOD and CAT activities in theslug caterpillars' survived from the deltamethrin treatment were higher than that ofthe control, showing that SOD and CAT activities were correlated with tolerance toinsecticide.
Keywords:Pieris rapae——slug caterpillar——superoxide dismutase——cata-lase——peroxidase
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