Transgenic rice expressing rice stripe virus NS3 protein, a suppressor of RNA silencing, shows resistance to rice blast disease

文献类型： 外文期刊

第一作者： Wu, Gentu

作者： Wu, Gentu;Wu, Gentu;Wang, Jiaoyu;Yang, Yong;Dong, Bo;Wang, Yanli;Sun, Guochang;Yan, Chengqi;Yan, Fei;Chen, Jianping;Wang, Jiaoyu;Wang, Yanli;Sun, Guochang;Yang, Yong;Dong, Bo;Yan, Chengqi;Yan, Fei;Chen, Jianping

作者机构：

关键词： Magnaporthe oryzae;Resistance;Rice blast disease;Rice stripe virus;Suppressor of RNA silencing

期刊名称：VIRUS GENES （ 影响因子：2.332； 五年影响因子：2.0 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The NS3 protein of rice stripe virus (RSV), encoded by the virion strand of RNA3, is a viral suppressor of RNA silencing (VSR). Rice expressing NS3 had a normal phenotype, was initially sensitive to RSV but recovered at the later stages of infection. RSV accumulated slightly more in transgenic than in wild-type plants at the early stage of infection, but accumulation was similar later. Transgenic rice expressing NS3 also showed enhanced resistance to the fungus Magnaporthe oryzae. Meanwhile, expressional levels of genes related to the salicylic acid (SA) and jasmonic acid (JA) pathways were not significantly altered, indicating that the defense to M. oryzae was independent of the SA and JA pathways. We propose that NS3 may have dual functions, facilitating viral infection as a VSR and inhibiting pathogenic development as an inducer of host defense.

分类号： R37

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