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敌对的CLE路径塑造了根的形状,形成了干细胞系统组织的图案.

Hang Zhang1, Qian Wang1, Noel Blanco-Touriñán1

  • 1Department of Plant Molecular Biology, University of Lausanne, Lausanne, Switzerland.

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概括
此摘要是机器生成的。

分泌的联体 (CLE) 和CLAVATA1 (CLV1) 类型的受体组织Arabidopsis根干细胞. 不同的CLE通路相互对抗,以控制花和地面组织的形成.

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科学领域:

  • 植物生物学 植物生物学
  • 发育生物学是发展生物学.
  • 分子信号传递是分子信号传递.

背景情况:

  • CLAVATA3/EMBRYO SURROUNDING REGION (CLE) 和CLAVATA1 (CLV1) 型受体调节了Arabidopsis中的干细胞.
  • 几乎任何一种梅里系统1 (BAM1) 和BAM2都是CLV1同类物,对根梅里系统中地面组织层的形成至关重要.

研究的目的:

  • 研究BAM1/2在血管浮膜系的启动中的作用.
  • 阐明CLE信号在根组织层组织中的机制,重点关注潜在的对抗性相互作用.

主要方法:

  • 阿拉比多普西斯塔利亚纳遗传分析
  • 对CLE信号通路的分析.
  • 研究受体激酶相互作用的受体.

主要成果:

  • 在阿拉比多普西斯的根中,BAM1/2对于启动血管花血统至关重要.
  • 与发芽不同的是,CLV1型受体之间的交叉补偿在根部受到限制.
  • BAM3介导的CLE45信号与BAM1/2介导的CLE11/12/13信号对抗.
  • 在空间和时间上有区别的CLE信号要求,用于叶膜启动和分化,受SHR途径的影响.

结论:

  • 截然不同的和对立的CLE信号通路的复杂,定量相互作用组织了Arabidopsis根系中的组织层形成.
  • 这些发现揭示了干细胞在根部的利基调节的新机制,与芽系统控制不同.