TCP8转录因子负面调节了Arabidopsis种子的发芽,并对抗TCP14的功能
Mimi Tian1,2, Wei Zhang1,2, Omae Pozza1,2
1Sorbonne Université, CNRS, Inserm, Development, Adaptation and Ageing, Dev2A, F-75005 Paris, France.
Journal of experimental botany
|November 25, 2025
概括
泰奥辛特分支1/循环群/增殖细胞因子 (TCP) 类I TCP8负面调节阿拉比多普西斯种子发芽. TCP8和TCP14有对立的作用,可能由MPK8协调,影响休眠和发芽.
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:
- 氨酸分枝1/环状/增殖细胞因子 (TCP) 是调节生物过程的植物转录因子.
- TCP I类子家族成员TCP14和TCP15已知是种子发芽的积极调节者.
研究的目的:
- 为了调查TCP I类子家族成员TCP8在Arabidopsis种子发芽中的作用.
- 阐明TCP8,TCP14和MPK8在调节种子休眠和发芽中的关系.
主要方法:
- 阿拉比多普西斯塔利亚纳的突变世代 (tcp8.1,tcp14.4,tcp8.1tcp14.4,MPK8淘汰赛).
- 种子休眠和发芽的测试.
- 基因表达分析 (ABA和GA相关的基因,转录组学).
- 蛋白质与蛋白质相互作用和酸化试验 (MPK8).
主要成果:
- tcp8.1突变种子表现出较弱的初级休眠和改变的ABA/GA基因表达.
- 对tcp8.1的转录组分析揭示了270个差异表达的基因,其中内精丰富的基因过度表现.
- tcp8.1tcp14.4双突变废除的发芽表型,表明TCP8和TCP14的对抗功能.
- MPK8与TCP8相互作用并化TCP8,在TCP8和TCP14的上游运行.
结论:
- TCP8被确定为阿拉比多普西斯种子发芽的新型负调节剂.
- TCP8和TCP14在种子发芽过程中表现出对立的功能,可能由MPK8.8协调.
- 这项研究扩大了对TCP转录因子在植物发育中的作用的理解,特别是种子发芽调节.
关键词:
阿拉比多普西斯塔利亚纳.MAP 激酶 8 的作用.主要休眠状态的主要休眠状态种子的种子种子.在TCP14 TCP14中使用.在TCP8TCP8中.泰奥辛特分支1/环状体/增殖细胞因子发芽 发芽 发芽 是一个过程.更多相关视频
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