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硫化在植物对温度压力的反应中发出信号
Zhong-Guang Li1,2,3, Jue-Rui Fang1,2,3, Su-Jie Bai1,2,3
1School of Life Sciences, Yunnan Normal University, Kunming, China.
Frontiers in plant science
|March 28, 2024
概括
硫化 (H2S) 现在被认为是植物中重要的信号分子,对调节生长和应激反应至关重要. 这篇评论详细介绍了H2S.
科学领域:
- 植物生理学 植物生理学
- 生物化学 生物化学
- 环境科学 环境科学
背景情况:
- 历史上被视为有毒的硫化 (H2S) 现在被认为是植物中作为信号分子的关键作用.
- H2S参与调节重要的植物过程,包括细胞代谢,种子发芽,生长,发育以及对环境压力的反应,如高 (HT) 和低温 (LT).
- H2S信号传递涉及复杂的恒温机制,通过酶和非酶途径在各种细胞区发生活跃的合成和降解.
研究的目的:
- 审查和总结目前对H2S恒温的理解及其在植物对HT和LT压力的反应中的作用.
- 更新有关H2S信号机制的知识,特别是蛋白质固硫化,在温度压力下的植物中.
- 阐明植物中H2S诱导的耐受性对HT和LT压力的共同机制.
主要方法:
- 文献综述侧重于植物中的H2S信号传递,恒温和蛋白质固硫化.
- 对研究H2S在植物对高温和低温压力的反应中的作用进行分析.
- 综合有关H2S介导的温度应力耐受性分子和生理机制的信息.
主要成果:
- 通过各种机制,H2S积极调节植物生理过程,并通过各种机制赋予耐受性至极温度.
- 关键的H2S介导耐受性机制包括恢复生物膜完整性,增强抗氧化剂和甲基氧化物排毒系统,改善水和离子稳态.
- H2S信号传递涉及目标蛋白质的持续硫化,尽管尚未确定H2S的特定植物受体.
结论:
- 硫化在植物生理学中发挥着多方面的作用,作为温度应激适应的关键信号分子.
- 了解H2S信号通路和恒温是促进植物科学发展和开发具有增强抗压力的作物的基础.
- 本次审查为未来的研究提供了基础,旨在利用H2S在不断变化的气候下实现可持续农业和粮食安全.
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