Rice stripe virus coat protein induces the accumulation of jasmonic acid, activating plant defence against the virus while also attracting its vector to feed

文献类型： 外文期刊

第一作者： Han, Kelei

作者： Han, Kelei;Huang, Haijian;Zheng, Hongying;Ji, Mengfei;Yuan, Quan;Cui, Weijun;Zhang, Hehong;Peng, Jiejun;Lu, Yuwen;Rao, Shaofei;Wu, Guanwei;Lin, Lin;Sun, Zongtao;Li, Junmin;Zhang, Chuanxi;Chen, Jianping;Yan, Fei;Han, Kelei;Huang, Haijian;Zheng, Hongying;Ji, Mengfei;Yuan, Quan;Cui, Weijun;Zhang, Hehong;Peng, Jiejun;Lu, Yuwen;Rao, Shaofei;Wu, Guanwei;Lin, Lin;Sun, Zongtao;Li, Junmin;Zhang, Chuanxi;Chen, Jianping;Yan, Fei;Han, Kelei;Chen, Jianping;Song, Xuemei;Lou, Yonggen

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关键词： coat protein; jasmonic acid; Laodelphax striatellus; rice stripe virus; small brown planthopper (SBPH)

期刊名称：MOLECULAR PLANT PATHOLOGY （ 影响因子：5.663； 五年影响因子：5.626 ）

ISSN： 1464-6722

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收录情况： SCI

摘要： The jasmonic acid (JA) pathway plays crucial roles in plant defence against pathogens and herbivores. Rice stripe virus (RSV) is the type member of the genusTenuivirus. It is transmitted by the small brown planthopper (SBPH) and causes damaging epidemics in East Asia. The role(s) that JA may play in the tripartite interaction against RSV, its host, and vector are poorly understood. Here, we found that the JA pathway was induced by RSV infection and played a defence role against RSV. The coat protein (CP) was the major viral component responsible for inducing the JA pathway. Methyl jasmonate treatment attracted SBPHs to feed on rice plants while a JA-deficient mutant was less attractive than wild-type rice. SBPHs showed an obvious preference for feeding on transgenic rice lines expressing RSV CP. Our results demonstrate that CP is an inducer of the JA pathway that activates plant defence against RSV while also attracting SBPHs to feed and benefitting viral transmission. This is the first report of the function of JA in the tripartite interaction between RSV, its host, and its vector.

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