Octacosanol preserves postharvest apple quality by delaying senescence through coordinated regulation of cuticular wax biosynthesis and antioxidant defense mechanisms

文献类型： 外文期刊

第一作者： Wei, Mengmeng

作者： Wei, Mengmeng;Sun, Quan;Du, Lianda;Wang, Wenyan;Qiao, Mingfei;Nie, Zhaopeng;Chu, Tiange;Chen, Ze;Bai, Xinran;Hu, Dagang;Wei, Mengmeng;Sun, Quan;Du, Lianda;Wang, Wenyan;Qiao, Mingfei;Nie, Zhaopeng;Chu, Tiange;Chen, Ze;Bai, Xinran;Hu, Dagang;Wei, Mengmeng;Sun, Quan;Du, Lianda;Wang, Wenyan;Qiao, Mingfei;Nie, Zhaopeng;Chu, Tiange;Chen, Ze;Bai, Xinran;Hu, Dagang;Wan, Aoran

作者机构：

关键词： Fruit softening; preservative; oxidation inhibitor; cellulose; transcriptome

期刊名称：FOOD QUALITY AND SAFETY （ 影响因子：4.4； 五年影响因子：4.8 ）

ISSN： 2399-1399

年卷期： 2025 年 9 卷

页码：

收录情况： SCI

摘要： Apples, as respiratory climacteric fruit, undergo postharvest ripening and senescence, impacting commodity value. Cuticular wax protects against environmental stresses. Here, gas chromatography-mass spectrometry (GC-MS) analysis revealed a decline in fatty alcohol levels in apple wax during storage, correlating with fruit quality deterioration. Notably, octacosanol content significantly decreased with storage, suggesting that it is a primary cause of wax and fruit quality decline. Octacosanol treatment improved fruit quality and delayed softening by enhancing wax synthesis and antioxidant levels and suppressing cell wall-degrading enzymes. Transcriptome sequencing and real-time quantitative polymerase chain reaction (RT-qPCR) assays indicated increased expression of wax, peroxidase, sucrose, and starch genes and decreased expression of cell wall degradation genes, explaining octacosanol's benefits. This study provides a theoretical basis for octacosanol application in fruit preservation.

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