NSs, the Silencing Suppressor of Tomato Spotted Wilt Orthotospovirus, Interferes With JA-Regulated Host Terpenoids Expression to Attract Frankliniella occidentalis
文献类型： 外文期刊
作者： Du, Jiao 1 ; Song, Xiao-yu 2 ; Shi, Xiao-bin 2 ; Tang, Xin 2 ; Chen, Jian-bin 2 ; Zhang, Zhan-hong 4 ; Chen, Gong 1 ; Zha 1 ;
作者机构： 1.Hunan Agr Univ, Coll Plant Protect, Changsha, Peoples R China
2.Hunan Acad Agr Sci, Inst Plant Protect, Changsha, Peoples R China
3.Henan Acad Sci, High & New Technol Res Ctr, Zhengzhou, Peoples R China
4.Hunan Acad Agr Sci, Inst Vegetable, Changsha, Peoples R China
5.Univ Kentucky, Dept Entomol, Lexington, KY USA
关键词： tomato spotted wilt orthotospovirus; NSs; Frankliniella occidentalis; monoterpene; insect behavior
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.64； 五年影响因子：6.32 ）
ISSN： 1664-302X
年卷期： 2020 年 11 卷
页码：
收录情况： SCI
摘要： Tomato spotted wilt orthotospovirus (TSWV) causes serious crop losses worldwide and is transmitted by Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae). NSs protein is the silencing suppressor of TSWV and plays an important role in virus infection, cycling, and transmission process. In this research, we investigated the influences of NSs protein on the interaction of TSWV, plants, and F. occidentalis with the transgenic Arabidopsis thaliana. Compared with the wild-type Col-0 plant, F. occidentalis showed an increased number and induced feeding behavior on transgenic Arabidopsis thaliana expressing exogenous NSs. Further analysis showed that NSs reduced the expression of terpenoids synthesis-related genes and the content of monoterpene volatiles in Arabidopsis. These monoterpene volatiles played a repellent role in respect to F. occidentalis. In addition, the expression level of plant immune-related genes and the content of the plant resistance hormone jasmonic acid (JA) in transgenic Arabidopsis were reduced. The silencing suppressor of TSWV NSs alters the emission of plant volatiles and reduces the JA-regulated plant defenses, resulting in enhanced attractiveness of plants to F. occidentalis and may increase the transmission probability of TSWV.
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