Study on the Role of Phytohormones in Resistance to Watermelon Fusarium Wilt

文献类型： 外文期刊

第一作者： Zhu, Feiying

作者： Zhu, Feiying;Tong, Jianhua;Xiang, Jing;Wang, Ruozhong;Zhu, Feiying;Fang, Yong;Zhu, Feiying;Wang, Zhiwei;Fang, Yong;Yang, Kankan

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关键词： salicylic acid; jasmonic acid; abscisic acid; watermelon; Fusarium wilt; resistance

期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）

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年卷期： 2022 年 11 卷 2 期

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收录情况： SCI

摘要： Fusarium wilt disease is one of the major diseases causing a decline in watermelon yield and quality. Researches have informed that phytohormones play essential roles in regulating plants growth, development, and stress defendants. However, the molecular mechanism of salicylic acid (SA), jasmonic acid (JA), and abscisic acid (ABA) in resistance to watermelon Fusarium wilt remains unknown. In this experiment, we established the SA, JA, and ABA determination system in watermelon roots, and analyzed their roles in against watermelon Fusarium wilt compared to the resistant and susceptible varieties using transcriptome sequencing and RT-qPCR. Our results revealed that the up-regulated expression of Cla97C09G174770, Cla97C05G089520, Cla97C05G081210, Cla97C04G071000, and Cla97C10G198890 genes in resistant variety were key factors against (Fusarium oxysporum f. sp. Niveum) FON infection at 7 dpi. Additionally, there might be crosstalk between SA, JA, and ABA, caused by those differentially expressed (non-pathogen-related) NPRs, (Jasmonate-resistant) JAR, and (Pyrabactin resistance 1-like) PYLs genes, to trigger the plant immune system against FON infection. Overall, our results provide a theoretical basis for watermelon resistance breeding, in which phytohormones participate.

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