数字农科院2.0

Inhibitory effect of 2-methylvaleraldehyde on Botrytis cinerea and its application in postharvest strawberry

文献类型： 外文期刊

作者： Hongbo Yuan;Li Wang;Jianglan Zhu;Jinke Ren;Ruiping Liu;Xiaoqian Li;Yan Chen;Hui Hou;Hongtao Tu

作者机构：

关键词： Biocontrol activity;Gel;Microbial volatile compound;Strawberry gray mold;Transcriptome analysis

期刊名称： Postharvest Biology and Technology

ISSN： 0925-5214

年卷期： 2025 年 230 卷

页码：

收录情况： SCIE（2025版）

摘要： Gray mold, caused by Botrytis cinerea, is a prevalent postharvest strawberry disease. Biocontrol of plant diseases represents an alternative to the application of fungicides. This study investigated the biocontrol efficacy and potential mechanism of 2-methylvaleraldehyde, a microbial volatile compound, against B. cinerea and identified suitable gels for its sustained release. The results showed that 2-methylvaleraldehyde inhibited mycelial growth and spore germination, destroyed cell wall and membrane integrity, and induced ROS accumulation and apoptosis in B. cinerea. Additionally, it activated the expression of PR genes in strawberry. Transcriptome analysis showed that 2-methylvaleraldehyde regulated the expression of genes involved in cell wall and membrane synthesis, and DNA biosynthesis. Moreover, starch and hypromellose were found to be suitable gels for releasing 2-methylvaleraldehyde, and these gels with 2-methylvaleraldehyde could effectively prevent B. cinerea-induced strawberry gray mold, similar to 2-methylvaleraldehyde fumigation. These findings suggest that 2-methylvaleraldehyde is a promising fumigant against B. cinerea and that starch or hypromellose gels with 2-methylvaleraldehyde can be used to control gray mold in postharvest strawberry.

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