MYB公司
转录因子
耐旱性
生物
抄写(语言学)
细胞生物学
基因
遗传学
植物
语言学
哲学
作者
Gaofeng Zhang,Guangdong Li,Yang Xiang,Aying Zhang
标识
DOI:10.1016/j.bbrc.2022.02.051
摘要
MYB transcription factors play a vital role in response to stress in plant. MYB-CC transcription factors belong to MYB transcription factors, which contain a conserved MYB DNA-binding domain and a coiled-coil (CC) domain. MYB-CC transcription factors participate in the process of plant drought tolerance. However, the underlying molecular mechanisms of ZmMYB-CC in regulating drought tolerance are still largely unknown. Here, we found that ZmMYB-CC10 enhanced drought tolerance by reducing oxidative damage in maize. Further, ZmMYB-CC10 improves the activity of APX and decreases the content of H2O2. Overexpression of ZmMYB-CC10 increases the expression of ZmAPX4 under drought stress. Luciferase assays and Yeast one-hybrid assays (Y1H) showed that ZmMYB-CC10 activates the expression of ZmAPX4 by directly binding to its promoter. Taken together, our results demonstrate that ZmMYB-CC10 enhances tolerance to drought stress by directly activating ZmAPX4 expression, thereby reducing H2O2 content.
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