EIN3 / EIL-ERF9-HAK5转录级联积极调节高亲和度K+吸收在Gossypium hirsutum中
Shuang Xiao1, Doudou Yang1,2, Fangjun Li1
1State Key Laboratory of Plant Environmental Resilience, Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No.2 Yuanmingyuan Xilu, Haidian District, Beijing, 100193, China.
The New phytologist
|January 3, 2024
概括
乙烯信号通过激活 GhERF9 转录因子来调节棉根 (K+) 的吸收,从而增强 GhHAK5a 表达. 这一途径对于植物K+营养至关重要,可以用于作物改进.
科学领域:
- 植物生理学 植物生理学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 高亲和度K+ (HAK) 载体对于植物根的K+吸收至关重要.
- GhHAK5a是高地棉花中关键的HAK载体,但其基因表达调节是未知的.
- 了解GhHAK5a法规对于改善棉花的K+获取至关重要.
研究的目的:
- 为了确定调节GhHAK5a表达的转录因子.
- 阐明乙烯信号在棉花K+吸收中的作用.
- 为了探索 GhEIN3/EILs-GhERF9-GhHAK5a 监管模块. 为了探索 GhEIN3/EILs-GhERF9-GhHAK5a 监管模块.
主要方法:
- 酵母的一种混合查以确定转录因子.
- 双露西法酶和电泳性移动性转移试验以确认相互作用.
- 基因沉默和以太治疗以研究基因功能和乙烯反应.
主要成果:
- 乙烯反应因子9 (GhERF9) 被确定为GhHAK5a表达的直接激活剂.
- 沉默GhERF9减少了GhHAK5a的表达,K+吸收,并增加了缺乏症症状.
- 乙烯信号元件 (GhEIN3b,GhEIL3c) 调节GhERF9,将乙烯与K+吸收联系起来.
结论:
- 在棉花中,GhERF9充当乙烯信号与GhHAK5a介导的K+吸收之间的关键环节.
- EIN3/EILs-ERF9-HAK5模块为以乙烯增强的K+吸收提供了分子基础.
- 这一途径为基因增强棉花中K+吸收提供了潜在的目标.
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