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Predaceous and Phytophagous Pentatomidae Insects Exhibit Contrasting Susceptibilities to Imidacloprid

文献类型： 外文期刊

作者： Cheng, Hongmei 1 ; Wang, Zhen 1 ; Yan, Xiaoyu 2 ; Lin, Changjin 1 ; Chen, Yu 2 ; Ma, Le 2 ; Fu, Luyao 1 ; Dong, Xiaolin 2 ; Liu, Chenxi 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, Sino Amer Biol Control Lab, Beijing 100193, Peoples R China

2.Yangtze Univ, Dept Entomol, Jingzhou 434023, Peoples R China

关键词： imidacloprid; pentatomidae; pesticide susceptibility; toxicity

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 2 期

页码：

收录情况： SCI

摘要： Imidacloprid, a widely used neonicotinoid insecticide, targets insect pests but also affects natural enemies. However, the effects of neonicotinoid insecticides on closely related insects remain unclear. We evaluated the harmful effects of imidacloprid on the phytophagous Halyomorpha halys and predaceous Arma chinensis. Bioassays revealed that imidacloprid was more toxic to H. halys than to A. chinensis and more harmful to the males than to the females of the two insects. A. chinensis adults recovered from imidacloprid-induced knockdown, as evidenced by restored respiratory rates, metabolic rates, and locomotion. Surviving A. chinensis showed reduced fecundity, suggesting a trade-off between detoxification and reproduction. Bioinformatics analysis of nicotinic acetylcholine receptors (nAChRs) and molecular docking simulations indicated a lower diversity of the nAChR gene family in A. chinensis than in H. halys, with weaker binding to imidacloprid, consistent with the relatively low toxicity of the insecticide in this species. This might account for the susceptibility differences to imidacloprid between the species. These findings underscore the efficacy of imidacloprid against H. halys and provide insights into the toxicities of neonicotinoids to target and non-target insects.

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