Anti-Oomycete Effect and Mechanism of Salicylic Acid on Phytophthora infestans

文献类型： 外文期刊

第一作者： Zhang, Shumin

作者： Zhang, Shumin;Huang, Airong;Lv, Xiulan;Zhang, Jiaomei;Zhang, Meiquan;Yang, Liting;Luo, Xiumei;Ren, Maozhi;Dong, Pan;Zhang, Shumin;Wang, Hanyan;Guo, Dongmei;Luo, Xiumei;Ren, Maozhi;Chen, Yang;Dong, Pan;Ren, Maozhi;Ren, Maozhi

作者机构：

关键词： oomycete; potato late blight; plant hormone; bio-oomyceticide; multiomics

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： 2023 年 71 卷 51 期

页码：

收录情况： SCI

摘要： Pathogenic oomycetes infect a wide variety of organisms, including plants, animals, and humans, and cause massive economic losses in global agriculture, aquaculture, and human health. Salicylic acid (SA), an endogenous phytohormone, is regarded as an inducer of plant immunity. Here, the potato late blight pathogen Phytophthora infestans was used as a model system to uncover the inhibitory mechanisms of SA on pathogenic oomycetes. In this research, SA significantly inhibited the mycelial growth, sporulation, sporangium germination, and virulence of P. infestans. Inhibition was closely related to enhanced autophagy, suppression of translation initiation, and ribosomal biogenesis in P. infestans, as shown by multiomics analysis (transcriptomics, proteomics, and phosphorylated proteomics). Monodansylcadaverine (MDC) staining and Western blotting analysis showed that SA promoted autophagy in P. infestans by probably targeting the TOR signaling pathway. These observations suggest that SA has the potential to control late blight caused by P. infestans.

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