Bacterial Symbionts Contribute to Insecticide Susceptibility of Diaphorina citri via Changing the Expression Level of Host Detoxifying Genes

文献类型： 外文期刊

第一作者： Pan, Qi

作者： Pan, Qi;Yu, Shi-Jiang;Lei, Shuang;Zhang, Shao-Hui;Ding, Li-Li;Liu, Liu;Li, Si-Chen;Wang, Xue-Feng;Ran, Chun;Lou, Bing-Hai;Lou, Bing-Hai

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关键词： insecticide susceptibility; bacterial symbionts; CarEs; detoxifying genes; Diaphorina citri

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.7； 五年影响因子：6.0 ）

ISSN： 0021-8561

年卷期： 2024 年

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收录情况： SCI

摘要： Insecticide susceptibility is mainly determined by the insect host, but symbiotic bacteria are also an important affecting factor. In this study, we investigate the relationship between the structure of gut bacterial symbionts and insecticide susceptibility in Diaphorina citri, the important carrier of Candidatus Liberibacter asiaticus (CLas), the causal agent of Huanglongbing (HLB). Our results indicated that antibiotic treatment significantly increased the susceptibility of D. citri to bifenthrin and thiamethoxam, and significantly decreased the relative abundance of Wolbachia and Profftella, enzyme activities of CarEs, and expression level of multiple CarE genes. The relative loads of Wolbachia and Profftella were positively correlated with DcitCCE13, DcitCCE14, DcitCCE15, and DcitCCE16. RNAi and prokaryotic expression revealed that DcitCCE15 is associated with bifenthrin metabolism. These results revealed that bacterial symbionts might regulate DcitCCE15 expression, which is involved in the susceptibility of D. citri to bifenthrin.

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