一个微型RNA调解了根枝分支的射击控制
Moritz Sexauer1,2, Hemal Bhasin1,3, Maria Schön1
1Eberhard-Karls-University, Centre for Molecular Biology of Plants, Tübingen, Germany.
Nature communications
|December 6, 2023
概括
一种新发现的植物激素,微RNA 2111 (miR2111),控制着根的生长和的吸收. 这种发射的信号在两叶草物种中得到保护,影响根结构,以更好地获取营养.
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:
- 植物将根结构调整为土壤营养物质的可用性,以有效地利用资源.
- 根生长对的反应是由芽衍生信号调节的,但这些信号仍然未被识别.
研究的目的:
- 为了识别来自发芽的移动信号,调节根生长和反应能力.
- 调查miR2111及其控制根架构中的目标.
主要方法:
- 在 *Lotus japonicus* 和 *Arabidopsis thaliana* 中利用了分子和遗传方法.
- 研究了微RNA 2111 (miR2111) 和其目标基因,Too Much Love (TML) 和 LEGUME TML (HOLT) 的同类基因的功能.
主要成果:
- 确定了miR2111作为一种射出衍生的微RNA,它系统地调节侧向根启动和反应.
- 证明miR2111通过*Lotus japonicus*的根 TML作用.
- 通过Arabidopsis thaliana*中的miR2111-TML/HOLT regulon显示了侧向根启动的系统控制.
结论:
- miR2111-TML/HOLT regulon 是一种重要的和保存的机制,用于对二叶植物根架构的喷射控制.
- 这一途径在适应性植物对营养可用性的反应中起着至关重要的作用.
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