Ursolic acid, the main component of blueberry cuticular wax, inhibits Botrytis cinerea growth by damaging cell membrane integrity

文献类型: 外文期刊

第一作者: Liu, Ruiling

作者: Liu, Ruiling;Zhang, Liping;Xiao, Shangyue;Chen, Hangjun;Han, Yanchao;Niu, Ben;Wu, Weijie;Gao, Haiyan

作者机构:

关键词: Cuticular wax; Ursolic acid; Antifungal ability; Botrytis cinerea; Membrane damage

期刊名称:FOOD CHEMISTRY ( 影响因子:8.8; 五年影响因子:8.6 )

ISSN: 0308-8146

年卷期: 2023 年 415 卷

页码:

收录情况: SCI

摘要: Cuticular wax has been reported to play an essential role in resisting pathogens in various fruits. This study investigated the antifungal ability of the components in blueberry cuticular wax. We showed that the cuticular wax of blueberry inhibited the growth of Botrytis cinerea and ursolic acid (UA) was the key antifungal compound. UA inhibited B. cinerea growth in vitro and in vivo. Furthermore, UA increased extracellular conductivity and cellular leakage in B. cinerea, deformed the mycelial morphology, and destroyed cell ultrastructure. We also demonstrated that UA stimulated the accumulation of reactive oxygen species (ROS) and inactivated ROS scavenging enzymes. These results indicate that UA may exert antifungal effects against B. cinerea by disrupting cell membrane integrity. Thus, UA has significant potential as an agent for the control of gray mold in blueberry.

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