回忆的力量:植物中的生理和表观遗传记忆网络
Amr Elkelish1, Ahmad M Alqudah2, Abdulrahman M Alhudhaibi1
1Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P. O. Box: 90950, Riyadh, 11623, Saudi Arabia.
Journal of plant physiology
|March 11, 2026
概括
植物可以通过压力记忆或初始化来记住过去的环境挑战. 这使作物能够更快地安装,对反复出现的压力有更强的防御能力,提高了农业的弹性.
科学领域:
- 植物科学 植物科学
- 农业科学 农业科学
- 环境科学 环境科学
背景情况:
- 越来越多的环境压力因素威胁着全球作物生产.
- 植物具有一种称为压力记忆 (priming) 的现象,以应对不利条件.
- 压力记忆使植物能够保留从先前压力中获得的信息,从而在重新暴露时能够增强防御.
研究的目的:
- 审查作物植物中非生物应激记忆的机制.
- 探索信号通路,基因组/表观基因组修改以及参与压力记忆的调节网络.
- 突出应激记忆在作物育种和管理中的应用,以适应气候变化.
主要方法:
- 关于植物应激记忆的科学研究的文献综述.
- 对关键信号通路和分子机制的分析.
- 在应对压力时检查基因组和表观基因组的变化.
主要成果:
- 无机压力记忆包括分子,生理和表观遗传的压力信息的保留.
- 关键的信号通路和监管网络调解了启动响应.
- 基因组和表观基因组的修改在建立和维持压力记忆中起着至关重要的作用.
结论:
- 压力记忆可以提高作物对重复或同时发生的环境压力的抵抗力.
- 在作物育种中利用压力记忆可以导致更具适应性和弹性的农业系统.
- 整合压力记忆知识对于在气候变化面前确保全球粮食安全至关重要.
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