Transcriptomics integrated with metabolomics analysis of cold-induced lenticel disorder via the lignin pathway upon postharvest 'Xinli No.7' pear fruit

文献类型： 外文期刊

第一作者： Xu, Ranran

作者： Xu, Ranran;Zhou, Jiahua;Deng, Lizhi;Zhang, Shuaiqi;Wang, Baogang;Xu, Ranran;Zhou, Jiahua;Deng, Lizhi;Zhang, Shuaiqi;Wang, Baogang;Golding, John B.

作者机构：

关键词： Low temperature storage; Regulatory mechanism; Lignin biosynthesis; Ethylene; MYB transcription factors

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 220 卷

页码：

收录情况： SCI

摘要： Pear fruit often suffer severe lenticel disorder in the peel during cold storage, affecting their appearance and commercial value. Pear (Pyrus bretschneideri Rehder cv. Xinli No.7) fruit were treated with ethylene or 1-methylcyclopropene and stored at 0 C-degrees for 28 weeks (air treatment was used as a control). Observations revealed that the lenticels expanded and protruded, resulting rougher pear surface during storage. Furthermore, the occurrence of lenticel disorder was closely related to the lignin biosynthesis. Results from RNA-seq and weighted gene co-correlation network analysis showed a positive relationship among gene expression of lignin biosynthesis, plant hormone transduction, and the occurrence pattern of lenticel disorder. The results showed an increase in lignin biosynthesis through the upregulation of transcription factors and genes involved in the transduction of plant hormones, including ethylene and jasmonic acid. These results provide new insights into the mechanisms of lenticle disorder in 'Xinli No.7' pears under cold stress, and offer a theoretical basis for the maintenance of fruit quality during storage.

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