Identification of two ABCC transporters involved in malathion detoxification in the red flour beetle,Tribolium castaneum

作     者：Janin Rösner Hans Merzendorfer Janin R?sner;Hans Merzendorfer

作者机构：Department of Chemistry-BiologyInstitute of BiologyUniversity of SiegenSiegenGermany 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2022年第29卷第4期

页      面：1096-1104页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 

基　　金：We are grateful to Johanne Tietmeyer for generating the used pGEM-T plasmids containing TcABC-cDNA inserts.This work was supported by a grant from the Deutsche Forschungsgemeinschaft(DFG Me2210/4-1) 

主　　题：ATP-binding assette transporters(ABC transporter) B-cy fluthrin insecti-cide deoxification malathion tebufenozide Tribolium castaneum 

摘      要：ABC transporters have been suggested to be involved in insecticide detoxification in different insect species mainly based on the indirect observation of transcriptional upregulation of ABC gene expression in response to insecticide *** studies performed by us and others in the red flour beetle,Tribolium castaneum,have analyzed the function of TcABCA-C and TcABCG-H genes using RNA interference(RNAi)and demonstrated that specific TcABCA and TcABCC genes are involved in the elimination of the pyrethroid tefluthrin and the benzoylurea diflubenzuron,because gene silencing increased the beetle s susceptibility to the *** this study,we focused on the potential functions of TcABCA-C genes in detoxification of the pyrethroid cyfluthrin(CF),the organophosphate malathion(MAL)and the diacylhdyazine tebufenozide(TBF).Analysis of transcript levels of selected TcABCA-C genes in response to treatment with these three chemically unrelated insecticides revealed that some genes were particularly upregulated after insecticide *** addition,the ABC inhibitor verapamil synergized significantly the toxicity of MAL but only negligibly CF and TBF ***,silencing of two TcABCC genes by RNAi revealed a significant increase in susceptibility to *** contrast,we did not observe a significant increase in insecticide-induced mortalities when knocking down TcABC genes in larvae treated with CF or TBF,although they were upregulated in response to insecticide *** results suggest that two pleiotropic ABCC transporters expressed in metabolic and excretory tissues contribute to the elimination of MAL.