A Comprehensive Analysis of Transcriptomics and Metabolomics Revealed Key Pathways Involved in Saccharum spontaneum Defense against Sporisorium scitamineum

文献类型： 外文期刊

第一作者： Hu, Xin

作者： Hu, Xin;Luo, Zhengying;Xu, Chaohua;Wu, Zhuandi;Wu, Caiwen;Zan, Fengang;Zhao, Liping;Liu, Xinlong;Liu, Jiayong;Hu, Xin;Luo, Zhengying;Xu, Chaohua;Wu, Zhuandi;Wu, Caiwen;Ebid, Mahmoud H. M.;Zan, Fengang;Zhao, Liping;Liu, Xinlong;Liu, Jiayong;Hu, Xin;Luo, Zhengying;Xu, Chaohua;Wu, Zhuandi;Wu, Caiwen;Zan, Fengang;Zhao, Liping;Liu, Xinlong;Liu, Jiayong;Ebid, Mahmoud H. M.

作者机构：

关键词： sugarcane smut; lignans biosynthesis; hormonesignaling; auxin; salicylic acid

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2024 年 72 卷 8 期

页码：

收录情况： SCI

摘要： Sugarcane smut, caused by Sporisorium scitamineum, poses a severe threat to sugarcane production. The genetic basis of sugarcane resistance to S. scitamineum remains elusive. A comparative transcriptomic and metabolomic study was conducted on two wild Saccharum species of S. spontaneum with contrast smut resistance. Following infection, the resistant line exhibited greater down-regulation of genes and metabolites compared to the susceptible line, indicating distinct biological processes. Lignan and lignin biosynthesis and SA signal transduction were activated in the resistant line, while flavonoid biosynthesis and auxin signal transduction were enhanced in the susceptible line. TGA2.2 and ARF14 were identified as playing positive and negative roles, respectively, in plant defense. Exogenous auxin application significantly increased the susceptibility of S. spontaneum to S. scitaminum. This study established the significant switching of defense signaling pathways in contrast-resistant S. spontaneum following S. scitamineum infection, offering a hypothetical model and candidate genes for further research into sugarcane smut disease.

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