p-coumaric acid prevents Colletotrichum gloeosporioides by inhibiting membrane targeting and organic acid metabolism

文献类型： 外文期刊

第一作者： Hu, Jingjing

作者： Hu, Jingjing;Wu, Jingjing;Wang, Min;Jiao, Wenxiao;Du, Yamin;Yang, Xiaoying;Fu, Maorun;Chen, Qingmin;Chen, Xin

作者机构：

关键词： P-Coumaric acid; Anthracnose; Colletotrichum gloeosporioides; Antifungal activity; Organic acid metabolism; Membrane targeting

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2023 年 204 卷

页码：

收录情况： SCI

摘要： The objective of this study was to investigate the antifungal activity of p-coumaric acid (p-CA) against Colleto-trichum gloeosporioides (C. gloeosporioides), and elucidate the underlying antifungal mechanism from aspects of organic acid secretion and membrane targeting level. p-CA treatment inhibited increase of lesion diameter on fruit and mycelial growth, spore germination and germ tube elongation caused by C. gloeosporioides, the effect was positively correlated with the concentration. Importantly, C. gloeosporioides secretes organic acids during its growth, including malic acid, citric acid and lactic acid. However, the addition of p-CA inhibited the increase of total acid content and the decrease of pH value, as well as the secretion of organic acids. In summary, p-CA can inhibit the growth of C. gloeosporioides in fruit, and plays an inhibitory role by inducing cell membrane damage and inhibiting organic acid secretion.

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