The elicitor VP2 from Verticillium dahliae triggers defence response in cotton

文献类型： 外文期刊

第一作者： Qiu, Ping

作者： Qiu, Ping;Zheng, Baoxin;Yuan, Hang;Yang, Zhaoguang;Ming, Yuqing;Zhang, Lin;Hu, Qin;Shaban, Muhammad;Zhang, Xianlong;Zhu, Longfu;Qiu, Ping;Zheng, Baoxin;Yuan, Hang;Ming, Yuqing;Zhang, Xianlong;Zhu, Longfu;Lindsey, Keith;Wang, Yan;Shaban, Muhammad;Kong, Jie

作者机构：

关键词： cotton; Verticillium dahliae; comparative transcriptome analysis; elicitor; induced resistance; germplasm innovation

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：13.8； 五年影响因子：13.2 ）

ISSN： 1467-7644

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Verticillium dahliae is a widespread and destructive soilborne vascular pathogenic fungus that causes serious diseases in dicot plants. Here, comparative transcriptome analysis showed that the number of genes upregulated in defoliating pathotype V991 was significantly higher than in the non-defoliating pathotype 1cd3-2 during the early response of cotton. Combined with analysis of the secretome during the V991-cotton interaction, an elicitor VP2 was identified, which was highly upregulated at the early stage of V991 invasion, but was barely expressed during the 1cd3-2-cotton interaction. Full-length VP2 could induce cell death in several plant species, and which was dependent on NbBAK1 but not on NbSOBIR1 in N. benthamiana. Knock-out of VP2 attenuated the pathogenicity of V991. Furthermore, overexpression of VP2 in cotton enhanced resistance to V. dahliae without causing abnormal plant growth and development. Several genes involved in JA, SA and lignin synthesis were significantly upregulated in VP2-overexpressing cotton. The contents of JA, SA, and lignin were also significantly higher than in the wild-type control. In summary, the identified elicitor VP2, recognized by the receptor in the plant membrane, triggers the cotton immune response and enhances disease resistance.

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