缺乏和根生长:TOR信号在适应性反应中的作用
Ilyeong Choi1,2, Huikyong Cho1,2, Federica Brandizzi3,4
1Plant Resilience Institute, Michigan State University, East Lansing, MI 48824, USA.
Journal of experimental botany
|May 14, 2025
概括
植物适应根生长低 (P) 可用性,与目标的拉巴胺素复合物1 (TORC1) 途径发挥关键作用. 了解TORC1的理解
科学领域:
- 植物生物学 植物生物学
- 营养信号传递 营养信号传递
- 农业科学 农业科学
背景情况:
- (P) 对于植物生长至关重要,但通常具有较低的土壤生物利用性.
- 植物表现出根系修改 (例如,改变根架构) 以增强缺陷下的P获取.
- 拉帕米辛复合物1的目标 (TORC1) 是一个关键的调节器,集成营养和环境信号.
研究的目的:
- 在应力下对TORC1-介导的根架构调整的最新进展进行审查.
- 探索TORC1,和铁 (Fe) 在调节根的可塑性中的相互作用.
- 确定提高作物使用效率的策略.
主要方法:
- 文献综述综合了最近关于TORC1信号在植物对P缺乏的反应中的发现.
- 分析根基适应P压力的分子机制,包括与Fe恒温的相互作用.
- 探索植物育种和可持续农业的潜在应用.
主要成果:
- TORC1是早期根生长对P缺乏的反应的中央调节者.
- 过多的铁 (Fe) 可以通过氧化应激加剧P缺乏引起的根生长抑制.
- 在P压力下,TORC1影响横向根部发育和根毛延长.
结论:
- 根据P可用性,TORC1在调节植物根架构方面发挥着关键作用.
- 由TORC1调解的P和Fe稳态之间的相互作用对根的可塑性至关重要.
- 利用与TORC1相关的途径为提高作物P使用效率提供了有希望的策略.
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