文献类型： 外文期刊

作者： Bai, Peng-hua ¹ ; Yu, Jin-Ping ¹ ; Hu, Rui-rui ¹ ; Fu, Qian-wen ² ; Wu, Hai-chao ² ; Li, Xing-yue ³ ; Zu, Guo-hao ² ; Liu, Bao-sheng ¹ ; Yu, Zhang ⁴ ;

作者机构： 1.Tianjin Acad Agr Sci, Inst Plant Protect, Tianjin 300384, Peoples R China

2.Tianjin Agr Univ, Coll Hort & Landscape, Tianjin 300384, Peoples R China

3.Sichuan Acad Agr Sci, Inst Plant Protect, Chengdu 610066, Peoples R China

4.Minist Agr & Rural Affairs, Chinese Acad Agr Sci, Key Lab Biohazard Monitoring Green Prevent & Contr, Inst Grassland Res, Hohhot 010010, Inner Mongolia, Peoples R China

关键词： Steinernema carpocapsae; Plant volatiles; Attraction; Transcriptome; Chemosensation

期刊名称：JOURNAL OF INVERTEBRATE PATHOLOGY （ 影响因子：3.4； 五年影响因子：3.1 ）

ISSN： 0022-2011

年卷期： 2024 年 203 卷

页码：

收录情况： SCI

摘要： Entomopathogenic nematodes (EPNs) use the chemical cues emitted by insects and insect-damaged plants to locate their hosts. Steinernema carpocapsae, a species of EPN, is an established biocontrol agent used against insect pests. Despite its promising potential, the molecular mechanisms underlying its ability to detect plant volatiles remain poorly understood. In this study, we investigated the response of S. carpocapsae infective juveniles (IJs) to 8 different plant volatiles. Among these, carvone was found to be the most attractive volatile compound. To understand the molecular basis of the response of IJs to carvone, we used RNA-Seq technology to identify gene expression changes in response to carvone treatment. Transcriptome analysis revealed 721 differentially expressed genes (DEGs) between carvone-treated and control groups, with 403 genes being significantly upregulated and 318 genes downregulated. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the responsive DEGs to carvone attraction were mainly involved in locomotion, localization, behavior, response to stimulus, and olfactory transduction. We also identified four upregulated genes of chemoreceptor and response to stimulus that were involved in the response of IJs to carvone attraction. Our results provide insights into the potential transcriptional mechanisms underlying the response of S. carpocapsae to carvone, which can be utilized to develop environmentally friendly strategies for attracting EPNs.