Allicin impacts the susceptibility of Spodoptera exigua to nucleopolyhedrovirus

文献类型： 外文期刊

第一作者： Wang, Jin-Yan

作者： Wang, Jin-Yan;Hou, You-Ming;Wang, Jin-Yan;Jiang, Jie-Xian;Fan, Neng-Neng;Wu, Hua-Wu;Ji, Xiang-Yun;Wan, Nian-Feng

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关键词： Allicin; Spodoptera exigua; Spodoptera exigua multiple nucleopolyhedrovirus; RNA-Seq; RNA interference

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：4.1； 五年影响因子：5.0 ）

ISSN： 1612-4758

年卷期： 2025 年 98 卷 2 期

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收录情况： SCI

摘要： Plant secondary metabolites are crucial in affecting the interactions between insect herbivores and entomoviruses. However, there is limited knowledge regarding the impact of such metabolites on the susceptibility of insect herbivores to entomoviruses. In this study, we adopted the allicin, caterpillars (Spodoptera exigua) and nucleopolyhedrovirus (SeMNPV) as a system, and found that allicin significantly increased the mortality of S. exigua larvae infected with SeMNPV by 36.03-59.45% when infected with the virus at a concentration of 2.12 x 10(3) OBmL(-1). Furthermore, NPV-infected larvae together treated with allicin inhibited the growth and development of larvae, comparing to individual NPV-infected larvae. Notably, we observed a significant enrichment of differentially expressed genes involved in the cytochrome P450-mediated metabolism pathway between the NPV-infected and allicin combined with NPV-treated groups. The silencing of CYP340AA1 through RNA interference significantly increased the mortality of larvae infected with SeMNPV. This investigation indicates that allicin might be a potential candidate for improving the performance of the NPV against insect herbivores and identifies that CYP340AA1 gene is important in this process.

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