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Anti-Oomycete Effect and Mechanism of Salicylic Acid on Phytophthora infestans
Zhang, Shumin1,2; Huang, Airong1; Lv, Xiulan1; Zhang, Jiaomei1; Zhang, Meiquan1; Chen, Yang4; Yang, Liting1; Wang, Hanyan2; Guo, Dongmei2; Luo, Xiumei1,3
2023-12-15
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.
关键词oomycete potato late blight plant hormone bio-oomyceticide multiomics
DOI10.1021/acs.jafc.3c05748
发表期刊JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN0021-8561
卷号71期号:51页码:20613-20624
通讯作者Ren, Maozhi(renmaozhi01@caas.cn) ; Dong, Pan(dongpan@cqu.edu.cn)
收录类别SCI
WOS记录号WOS:001133466600001
语种英语