文献类型： 外文期刊
作者： Wang, Zenghui 1 ; Li, Jialin 5 ; Yang, Xuemei 1 ; Hu, Yanli 2 ; Yin, Yanlei 1 ; Shen, Xiang 2 ;
作者机构： 1.Shandong Inst Pomol, Tai An 271000, Shandong, Peoples R China
2.Shandong Agr Univ, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China
3.Minist Agr, Key Lab Biol & Genet Improvement Hort Crops Huangh, Tai An 271018, Shandong, Peoples R China
4.Shandong Agr Univ, Coll Hort Sci & Engn, Tai An 271018, Shandong, Peoples R China
5.Univ Jinan, Sch Biol Sci & Technol, Jinan 250022, Peoples R China
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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