文献类型： 外文期刊

作者： Yao Qiong ¹ ; Quan Linfa ¹ ; Xu Shu ¹ ; Yuan Longyu ¹ ; Chen Bingxu ¹ ;

作者机构： 1.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangdong Prov Key Lab New High Technol Plant Pro, Guangzhou 510640, Guangdong, Peoples R China

关键词： lambda-cyhalothrin; beneficial arthropods; biocontrol efficacy; transcriptome; insect hormone; predatory behavior

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.895； 五年影响因子：6.048 ）

ISSN： 0021-8561

年卷期： 2022 年 70 卷 4 期

页码：

收录情况： SCI

摘要： Whether and how insecticide exposure will affect the biological control efficacy of predatory arthropods is critical in insecticide toxicology research but largely unexplored. In the current study, reduced biocontrol efficacy was observed in a predatory stink bug-Eocanthecona furcellata-after insecticide application in the field. Thus, we constructed a comparative transcriptome analysis and identified a total of 4364 upregulated and 1043 down regulated differentially expressed genes following the sublethal exposure of lambda-cyhalothrin. The reduced juvenile hormone (JH) titer and increased trehalose content were observed. The predation capacity and theoretical maximum predation of predators were decreased by 31.08 and 48.90% in response to lambda-cyhalothrin, respectively. Furthermore, JH supplementation after lambda-cyhalothrin treatment could significantly stimulate trehalase and detoxification enzyme activities, as well as restore the predatory ability of E. furcellata. Our results help to understand the toxicological mechanism of predatory stink bug species in responding to insecticides, benefit predators' ecological services, and optimize the insecticide selection.