1-MCP and MAP treatments reduce the finger drop of banana during the shelf-life after high temperatures storage by regulating cell-wall metabolism

文献类型： 外文期刊

第一作者： Li, Xiaoyan

作者： Li, Xiaoyan;Rahman, Faiz Ur;Zhao, Yujie;Lei, Qiumei;Chen, Weixin;Li, Xueping;Zhu, Xiaoyang;Hu, Huigang

作者机构：

关键词： High temperature stress; Shelf life; 1-MCP +MAP; Finger drop; Cell wall; RNA-seq; Banana

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 229 卷

页码：

收录情况： SCI

摘要： Finger drop, a critical issue affecting banana shelf life, particularly under high temperature (HT) ripening conditions, was investigated using modified atmosphere packaging (MAP) combined with 1-methylcyclopropene (1MCP) treatments. The study demonstrated that 300 nL L-1 1-MCP combined with MAP significantly mitigated green-ripening disorder, delayed ripening, and senescence, and reduced disease incidence in HT-stored bananas. It notably maintained high peduncle pull strength and decreased finger drop, thereby preserving the commercial value bananas. This was achieved through a reduction of reactive oxygen species (ROS), accumulation and an enhancement of defense and antioxidant enzyme activities in the fruit stem. The mechanisms involved in the maintenance of high peduncle pull strength encompassed the inhibition of cell wall (CW) degrading enzymes, increased cellulose and lignin content, CW integrity preservation, and regulation of endogenous hormones such as abscisic acid (ABA) and indole-3-acetic acid. A large number of differentially expressed genes (DEGs) were identified through RNA-seq in all comparisons under control, MAP, and 1-MCP+MAP after HT storage, which were mainly enriched in plant hormone signal transduction, starch and sucrose metabolism, and glycerophospholipid metabolism. 1-MCP+MAP treatment resulted in the downregulation of genes related to ethylene, ABA, auxin, starch and sucrose metabolism, and CW degradation, and the upregulation of genes involved in lignin biosynthesis, ROS scavenging, and heat shock proteins. WGCNA analysis identified key genes associated with CW, ROS, hormones, and transcription factors (e.g., bHLH96, MTB-like) as crucial for enhanced peduncle pull strength in bananas under 1-MCP+MAP treatments. This research establishes a theoretical foundation for optimizing HT storage, transportation, and shelf life of bananas.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序