转录因子RcNAC091通过酸依赖途径增强了干旱耐受性
Lifang Geng1, Shuang Yu1, Yichang Zhang1
1College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, Shandong 266109, China.
Plant physiology
|June 26, 2023
概括
研究人员确定了一种关键蛋白质,RcNAC091,通过调节ABA信号来增强的干旱耐受性. 这种蛋白激活RcWRKY71,改善了植物对干旱和酸 (ABA) 的反应.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 压力生理学 压力生理学
背景情况:
- NAC转录因子 (TF) 对植物发育和应激反应至关重要.
- 关于 (Rosa chinensis) 参与干旱耐受性的NAC蛋白质的研究有限.
研究的目的:
- 识别和描述参与干旱和酸 (ABA) 反应的NACTF.
- 为了阐明RcNAC091在干旱应激耐受性中的调节途径.
主要方法:
- 识别和表征RcNAC091,包括局部化和转录活动测试.
- 病毒引起的基因沉默和RcNAC091和RcWRKY71.71的过度表达.
- 转录组分析以识别下游基因.
- 在体内和体外测定以确认RcNAC091.1.由RcNAC71直接准RcWRKY71.
主要成果:
- RcNAC091,一个干旱和ABA诱导的NACTF,增强的干旱耐受性.
- RcNAC091直接准并激活RcWRKY71.71的促进器.
- RcWRKY71在ABA信号和干旱耐受性方面发挥着积极作用,可能是通过促进ABA依赖途径.
结论:
- RcNAC091通过转录激活RcWRKY71.1来积极调节ABA信号和干旱反应.
- 这项研究揭示了RcNAC091和RcWRKY71之间的功能联系,提高了的抗干旱能力.
- 结果为通过TF操纵改善的干旱耐受性提供了洞察力.
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