Transcriptomic and metabolomic analyses reveal the impact of 1-methyl-cyclopropene on bitter gourd fruit storage

文献类型： 外文期刊

第一作者： Guan, Feng

作者： Guan, Feng;Shi, Bo;Yang, Xuetong;Xie, Yuanyuan;Wan, Xinjian;Guan, Feng;Shi, Bo;Yang, Xuetong;Xie, Yuanyuan;Wan, Xinjian;Guan, Feng;Shi, Bo;Yang, Xuetong;Xie, Yuanyuan;Wan, Xinjian

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关键词： Momordica charantia; Postharvest storage; Ethylene inhibitor; Carotenoid biosynthesis; Plant hormones signal transduction

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.8； 五年影响因子：7.5 ）

ISSN： 0925-5214

年卷期： 2025 年 230 卷

页码：

收录情况： SCI

摘要： Bitter gourd (Momordica charantia L.), a nutrient-rich vegetable with medicinal properties, can undergo rapid postharvest senescence, limiting its shelf life. Although 1-methylcyclopropene (1-MCP), an ethylene inhibitor, is widely used to delay fruit ripening, its molecular effects on bitter gourd remain underexplored. In this study, treating bitter gourd with 1-MCP significantly delayed yellowing, reduced weight loss, lowered respiration intensity, and preserved fruit firmness. Transcriptomic analysis revealed significant differences in the gene expression of the treated and control groups, with notable effects on key pathways such as plant hormone signal transduction and carotenoid biosynthesis. Metabolomic analysis revealed distinct changes in metabolite abundance, particularly in flavonoids, lignin phenolics, and sugars. These results indicate that treatment with 1-MCP inhibits key carotenoid biosynthesis genes (McPDS, McLcyB), thereby delaying fruit yellowing, and modulates plant hormone signaling pathways, including abscisic acid and jasmonate, to regulate senescence. This study provides valuable insights into the molecular mechanisms underlying the effects of 1-MCP on bitter gourd storage. It identifies candidate genes for molecular breeding strategies to enhance storage resistance in bitter gourd varieties.

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