文献类型： 外文期刊
第一作者： Wang, Zenghui
作者： Wang, Zenghui;Yang, Xuemei;Yin, Yanlei;Hu, Yanli;Shen, Xiang;Hu, Yanli;Shen, Xiang;Hu, Yanli;Shen, Xiang;Li, Jialin
作者机构：
关键词： Self-rooted apple stocks; MdFLP; Drought stress; Transcriptional regulation; MdNAC019
期刊名称：PLANT SCIENCE （ 影响因子：5.363； 五年影响因子：5.454 ）
ISSN： 0168-9452
年卷期： 2022 年 321 卷
页码：
收录情况： SCI
摘要： Self-rooted apple stocks are widely used for the production of apples worldwide. However, self-rooted apple stocks are weak due to shallow roots and poor grounding, resulting in poor drought resistance. Therefore, it is essential to understand the molecular mechanisms to develop self-rooted apple stock cultivars with drought resistance. We reported that MdFLP, an R2R3-MYB transcription factor, directly binds to the promoter of MdNAC019, activating its transcription and consequently enhancing drought tolerance in self-rooted apple stocks. In addition, MdFLP indirectly activates the transcriptional expression of abiotic stress-related genes, namely, MdERF6 and MoT10. The plants overexpressing MdFLP displayed stronger drought tolerance, whereas MdFLP-RNAi plants showed weak drought tolerance compared with non-transgenic "Gala" plants, indicating that MdFLP regulates drought tolerance in self-rooted apple stocks. Altogether, we believe that our findings provide novel insights into the functions of MdFLP in the regulation of drought tolerance in self-rooted apple stocks.
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