Neophytadiene, a Plant Specialized Metabolite, Mediates the Virus-Vector-Plant Tripartite Interactions
文献类型： 外文期刊
作者： Shi, Xiao-bin 1 ; Yue, Hao 1 ; Wei, Yan 2 ; Preisser, Evan L. 3 ; Wang, Pei 1 ; Du, Jiao 1 ; Xia, Ji-xing 2 ; Li, Kai-long 1 ; Yang, Xin 4 ; Chen, Jian-bin 1 ; Zhang, Song-bai 1 ; Zhang, Zhan-hong 5 ; Zhou, Xu-guo 6 ; Zhang, De-yong 1 ; Liu, Yong 1 ;
作者机构： 1.Hunan Acad Agr Sci, Inst Plant Protect, Yuelushan Lab, Changsha 410125, Peoples R China
2.China Agr Univ, Coll Plant Protect, Lab Agr & Forestry Biosecur, MOA Key Lab Pest Monitoring & Green Management, Beijing 100193, Peoples R China
3.Univ Rhode Isl, Dept Biol Sci, Kingston, RI 02881 USA
4.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Dept Plant Protect, State Key Lab Vegetable Biobreeding, Beijing 100081, Peoples R China
5.Hunan Acad Agr Sci, Inst Vegetable, Yuelushan Lab, Changsha 410125, Peoples R China
6.Univ Illinois, Coll Liberal Arts & Sci, Sch Integrat Biol, Dept Entomol, Urbana, IL 61801 USA
关键词：
期刊名称：ADVANCED SCIENCE （ 影响因子：14.1； 五年影响因子：15.6 ）
ISSN：
年卷期： 2025 年 12 卷 22 期
页码：
收录情况： SCI
摘要： While interactions between viruses and their vectors, as well as between viruses and host plants, have been extensively studied, the genetic mechanisms underlying tripartite interactions remain largely unknown. In this study, phenotypic assays are integrated with molecular biology and functional genomic approaches to elucidate the tripartite interactions involving tomato chlorosis virus (ToCV), a major threat to tomato production worldwide, the whitefly, Bemisia tabaci, an insect vector, and host plants. ToCV infection induces the production of a chlorophyll degradation product that acts as a volatile attractant for whiteflies. Furthermore, the suppression of Lhca4, a gene encoding subunit of light-harvesting complex I in host plants, by the P9 protein of ToCV leads to chlorophyll degradation and neophytadiene biosynthesis. Overexpression of Lhca4 reduced chlorophyll production and ToCV infection. Furthermore, OBP2, an odorant-binding protein from B. tabaci, capable of binding to neophytadiene is identified. Suppression of BtOBP2 impaired vector's subsequent preference for ToCV-infected plants. The results not only reveal the genetic underpinnings, including ToCV P9, host plant Lhca4, and whitefly BtOBP2, governing the virus-vector-plant interactions, but also highlight neophytadiene, a specialized metabolite in host plants, as a mediator of intricate multitrophic interactions, suggesting new avenues for managing plant virus vectored by insects.
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