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
作者： Wei, Mengmeng 1 ; Sun, Quan 1 ; Wan, Aoran 4 ; Du, Lianda 1 ; Wang, Wenyan 1 ; Qiao, Mingfei 1 ; Nie, Zhaopeng 1 ; Chu, Tiange 1 ; Chen, Ze 1 ; Bai, Xinran 1 ; Hu, Dagang 1 ;
作者机构： 1.Natl Res Ctr Apple Engn & Technol, Tai An, Peoples R China
2.Shandong Collaborat Innovat Ctr Fruit & Vegetable, Tai An, Peoples R China
3.Shandong Agr Univ, Coll Hort Sci & Engn, Tai An, Peoples R China
4.Chinese Acad Agr Sci, Res Inst Pomol, Xingcheng, Peoples R China
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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