托尔协调细胞因素和吉伯雷林信号,调解发育和防御
Iftah Marash1,2, Rupali Gupta1, Gautam Anand1
1Department of Plant Pathology and Weed Research, Agricultural Research Organization, Volcani Institute, Bet Dagan, Israel.
Plant, cell & environment
|October 31, 2023
概括
植物通过调节拉帕素 (TOR) 酶的目标来平衡生长和防御. 受细胞因素和吉伯雷林激素影响的TOR活性影响植物发育和免疫力,揭示了优先考虑这些过程的关键机制.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物生理学 植物生理学
- 植物免疫力 植物免疫力
背景情况:
- 植物必须在生长和防御病原体之间平衡能量分配.
- 拉帕素 (TOR) 激酶的目标是真核生物生长和发育的中心调节者.
- 在TOR介导的发育和防御之间的相互作用,以及植物激素细胞激素 (CK) 和吉伯雷林 (GA) 在这种平衡中的作用,尚未完全理解.
研究的目的:
- 调查TOR在调解番茄植物发展和防御之间的权衡中的作用.
- 探索TOR如何与细胞激素 (CK) 和吉伯雷林 (GA) 信号通路相互作用,调节这些过程.
主要方法:
- 在番茄植物中的TOR沉默和抑制.
- 分析发育表型和疾病耐药性的分析.
- 研究TOR,CK和GA信号通路之间的相互作用.
主要成果:
- 通过对TOR进行沉默,可以挽救异常发育现象型,证实了TOR对发育暗示执行的需求.
- 在低CK/GA比率的基因型中,TOR抑制增强了免疫力,但在高CK/GA比率的基因型中没有.
- CK抑制了TOR活性,这表明CK介导的免疫包括TOR下调,而GA促进了TOR活性.
结论:
- 托尔与CK和GA信号协同行动,执行防御和发展的线索.
- 对TOR或TOR中介流程的不同监管可以决定开发和防御之间的优先级.
- 了解TOR的作用为管理植物生长-防御权衡提供了洞察力.
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