BZU2/ZmMUTE的核凝结物调节转录以实现玉米口腔复合物的结构异质性
Xin Qiao1, Jingjing Xing1, Bolun Meng1
1State Key Laboratory of Crop Stress Adaptation and Improvement, The Zhongzhou Laboratory for Integrative Biology, School of Life Sciences, Henan University, Kaifeng 475004, China.
The Plant cell
|February 20, 2026
概括
玉米转录因子BZU2/ZmMUTE通过液态-液态相分离驱动口腔发育中的细胞多样性. 它的特性调节细胞类型的特定调节,使复杂的口腔形态成为可能.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 细胞命运的确定依赖于转录因子 (TFs).
- 了解TF对发展多样性的贡献至关重要.
- 玉米的口腔发育涉及复杂的TF相互作用.
研究的目的:
- 研究BZU2/ZmMUTE在玉米口腔复合物的异质性中的作用.
- 阐明BZU2/ZmMUTE函数的机制,包括其液态液相分离 (LLPS) 特性.
主要方法:
- 基因型分析分析
- 单细胞RNA测序 (scRNA-seq) 是一种
- 本质上无序区域 (IDR) 的分析.
主要成果:
- 在四细胞口腔复合体中,ZmMUTE驱动功能和空间异质性.
- ZmMUTE的内在无序区域4 (IDR4) 促进了凝结物的形成,招募了ZmSCRM.
- ZmMUTE凝结物增强DNA结合和向基因激活,影响护卫细胞和子细胞的发育.
- IDR4 赋予 MUTE 保存的细胞间移动性.
结论:
- 通过LLPS,ZmMUTE的动态行为协调了玉米口腔发育中的细胞类型特定调节.
- 这种机制使得独特的四细胞口腔形态出现.
- 在植物发育过程中,IDR4在TF移动性和功能中起着保留的作用.
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