果实中的酸盐过氧化酶及其活性通过反应性物种的调节
Francisco J Corpas1, Salvador González-Gordo1, José M Palma1
1Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), Granada, Spain.
Journal of experimental botany
|March 5, 2024
概括
亚酸盐过氧化酶 (APX) 对于植物中分解过氧化 (H2O2) 是至关重要的. 调节APX活动的分子,如黑激素可以提高水果的质量和保质期.
科学领域:
- 植物生理学 植物生理学
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 亚酸盐过氧化酶 (APX) 是亚酸盐-谷氨循环中的一个关键酶,对于在植物中清除过氧化 (H2O2) 是必不可少的.
- APX在光合作用真核生物中无处不在,并且分布在参与H2O2生产的各种亚细胞中.
- APX的翻译后修改将H2O2代谢与氧化物 (NO) 和硫化 (H2S) 等其他信号分子联系起来.
研究的目的:
- 突出APX在水果成熟和收获后质量维护中的关键作用.
- 探索外源分子 (NO,H2S,H2O2,黑素) 在调节APX活性以提高作物质量的潜力.
- 讨论这些分子作为园艺行业的生物技术工具的应用.
主要方法:
- 关于APX功能,调节及其在水果生理学中的作用的现有文献的审查.
- 分析翻译后修改对APX活动的影响.
- 检查涉及对外应用信号分子来调节水果中的抗氧化系统的研究.
主要成果:
- 通过各种翻译后修改来调节APX活动,将H2O2代谢与其他信号通路集成在一起.
- 在水果成熟和收获后储存期间,APX在调节H2O2和酸盐水平方面发挥着重要作用,影响水果质量.
- 对外应用NO,H2S,H2O2和黑激素可以调节APX活性和其他抗氧化系统.
结论:
- APX是植物应激反应和质量调节的核心酶,特别是在水果中.
- 像黑激素这样的信号分子为延长水果的保质期和提高水果质量提供了有希望的途径.
- 通过外源分子调节APX活动,代表了园艺行业的新生物技术方法.
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