Broad host adaptation of Mythimna separata mediated by gut bacteria and detoxification enzyme gene MsGSTd3
文献类型： 外文期刊
作者： Xu, Chao 1 ; Chen, Ruifang 1 ; Zhu, Xiangzhen 1 ; Wang, Li 1 ; Li, Dongyang 1 ; Zhang, Kaixin 1 ; Gao, Xueke 1 ; Chen, Ran 6 ; Elumalai, Punniyakotti 1 ; Ji, Jichao 1 ; Luo, Junyu 1 ; Cui, Jinjie 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biobreeding & Integrated Util, Anyang 455000, Henan, Peoples R China
2.Zhengzhou Univ, Sch Agr Sci, State Key Lab Cotton Biol, Zhengzhou Res Base, Zhengzhou 450001, Henan, Peoples R China
3.Chinese Acad Agr Sci, Western Agr Res Ctr, Changji 831100, Peoples R China
4.Tianjin Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Tianjin 300192, Peoples R China
5.State Key Lab Vegetable Biobreeding, Tianjin 300192, Peoples R China
6.Xinjiang Agr Univ, Coll Agron, Urumqi 830052, Peoples R China
7.Nanjing Agr Univ, Coll Plant Protect, Key Lab Integrated Management Crop Dis & Pests, Minist Educ, Weigang 1, Nanjing 210095, Peoples R China
关键词： Oriental armyworm; host plant; life history traits; 16S rRNA sequencing; Enterobacter cloacae; Enterococcus mundtii; RNAi
期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：4.6； 五年影响因子：4.4 ）
ISSN： 0171-8177
年卷期： 2025 年 45 卷 1 期
页码：
收录情况： SCI
摘要： To explore the potential adaptation mechanisms of Mythimna separata to broad host plants, five strains of this polyphagous pest were established based on host plants maize, wheat, soybean, lettuce, and romaine, respectively. All five strains of M. separata were capable of completing their life cycle, but their fitness levels vary. In addition, the gut bacterial community composition and diversity of these five M. separata strains were different, but Enterobacter cloacae and Enterococcus mundtii were the dominant bacteria shared by all five strains. Silencing of detoxification enzyme gene MsGSTd3 not only increased the mortality of all five M. separata strains but also decreased the copy number of the dominant intestinal bacteria E. mundtii, suggesting a positive correlation between E. mundtii and MsGSTd3. Taken together, this study revealed that the adaptation of M. separata to host plants was a complicated process involving multiple factors such as gut bacteria and the expression of detoxification enzyme gene, which contributed M. separata to successfully be adapted to the defenses of various host plants. Understanding the broad host adaptation mechanisms of M. separata will facilitate the development of management strategies against this pest and contribute to the safety of crop production.
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