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Susceptibility of Four Species of Aphids in Wheat to Seven Insecticides and Its Relationship to Detoxifying Enzymes

文献类型： 外文期刊

作者： Gong, Peipan 1 ; Chen, Defeng 3 ; Wang, Chao 1 ; Li, Mengyi 1 ; Li, Xinan 1 ; Zhang, Yunhui 1 ; Li, Xiangrui 1 ; Zhu, Xun 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing, Peoples R China

2.Shenyang Agr Univ, Coll Plant Protect, Shenyang, Peoples R China

3.Minist Agr, Beijing Vegetable Res Ctr, Key Lab Biol & Genet Improvement Hort Crops, Beijing, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Vegetable Germplasm Improvement, Beijing, Peoples R China

关键词： imidacloprid; cytochrome P450 monooxygenase; synergist; toxicity difference; wheat aphids

期刊名称：FRONTIERS IN PHYSIOLOGY （ 影响因子：4.566； 五年影响因子：4.804 ）

ISSN： 1664-042X

年卷期： 2021 年 11 卷

页码：

收录情况： SCI

摘要： Sitobion avenae (Fabricius), Rhopalosiphum padi (Linnaeus), Schizaphis graminum (Rondani), and Metopolophium dirhodum (Walker) (Hemiptera: Aphididae) are important pests of wheat and other cereals worldwide. In this study, the susceptibilities of four wheat aphid species to seven insecticides were assessed. Furthermore, the activities of carboxylesterase (CarE), glutathione S-transferase (GSTs), and cytochrome P450 monooxygenase (P450s) were determined in imidacloprid treated and untreated aphids. The results showed that the susceptibilities of four wheat aphid species to tested insecticides are different and M. dirhodum has shown higher tolerance to most insecticides. Relatively higher CarE and GST activities were observed in M. dirhodum, and P450s activities increased significantly in response to imidacloprid treatment. Moreover, susceptibility to imidacloprid were increased by the oxidase inhibitor piperonyl butoxide in M. dirhodum (20-fold). The results we have obtained imply that P450s may play an important role in imidacloprid metabolic process in M. dirhodum. We suggest that a highly species-specific approach is essential for managing M. dirhodum.

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