Transcriptome Analysis Reveals That Ascorbic Acid Treatment Enhances the Cold Tolerance of Tea Plants through Cell Wall Remodeling

文献类型： 外文期刊

第一作者： Fu, Qianyuan

作者： Fu, Qianyuan;Wang, Lu;Lei, Lei;Di, Taimei;Ye, Yufan;Ding, Changqing;Li, Nana;Hao, Xinyuan;Zeng, Jianming;Yang, Yajun;Wang, Xinchao;Ye, Meng;Huang, Jianyan;Fu, Qianyuan;Cao, Hongli;Ye, Yufan;Cao, Hongli

作者机构：

关键词： ascorbic acid; cold stress; ROS; cell wall; tea plants

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2023 年 24 卷 12 期

页码：

收录情况： SCI

摘要： Cold stress is a major environmental factor that adversely affects the growth and productivity of tea plants. Upon cold stress, tea plants accumulate multiple metabolites, including ascorbic acid. However, the role of ascorbic acid in the cold stress response of tea plants is not well understood. Here, we report that exogenous ascorbic acid treatment improves the cold tolerance of tea plants. We show that ascorbic acid treatment reduces lipid peroxidation and increases the Fv/Fm of tea plants under cold stress. Transcriptome analysis indicates that ascorbic acid treatment down-regulates the expression of ascorbic acid biosynthesis genes and ROS-scavenging-related genes, while modulating the expression of cell wall remodeling-related genes. Our findings suggest that ascorbic acid treatment negatively regulates the ROS-scavenging system to maintain ROS homeostasis in the cold stress response of tea plants and that ascorbic acid's protective role in minimizing the harmful effects of cold stress on tea plants may occur through cell wall remodeling. Ascorbic acid can be used as a potential agent to increase the cold tolerance of tea plants with no pesticide residual concerns in tea.

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