与土壤出现相关的转录因子PIF3通过与受体激酶FER相互作用来控制根的透
Fan Xu1, Jia Chen1, Yingbin Li1
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, and Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha 410082, China.
植物染色体交互因子3 (PIF3) 和FERONIA (FER) 信号调节植物根的透. 铁酶稳定PIF3,使根能够在土壤中导航,并促进苗木的生存.
科学领域:
- 植物生物学 植物生物学
- 分子植物科学 分子植物科学
- 发展生物学 发展生物学
背景情况:
- 植物根的透对于幼苗的生存至关重要,需要协调的生长和通过土壤的导航.
- 受体激酶FERONIA (FER) 和转录因子植物染色体相互作用因子3 (PIF3) 都与植物发育有关.
研究的目的:
- 阐明FERONIA (FER) 信号控制根透的分子机制.
- 研究植物染色体交互因子3 (PIF3) 在调节FER调节的根生长中的作用.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 的阿拉比多普西斯的根.
- 在Arabidopsis thaliana和Glycine max突变体中进行生物化学测定,成像和遗传分析.
- 分析FER和PIF3的相互作用及其下游目标.
主要成果:
- 在FER中功能丧失的突变体在Arabidopsis和大豆中表现出严重的根穿透缺陷.
- scRNA-seq确定PIF3是FER调节的转录因子,特别是在根盖细胞中.
- FER稳定了PIF3,调节了PIEZO通道表达和外部根盖细胞脱落,这对于土壤透至关重要.
结论:
- 费罗尼亚 (FER) 信号通过稳定PIF3.3对根透至关重要.
- PIF3作为FER感知到的外部信号的关键调解者,通过PIEZO和根盖细胞动态控制根生长.
- 这条路径被保护,对陆地植物的生存至关重要.
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