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如何在温和的冬季生存:冬季小麦和大麦的寒冷适应,脱适应和重新适应

Klára Kosová¹, Tereza Nešporová², Pavel Vítámvás¹

¹Laboratory of Plant Stress Biology and Biotechnology, Department of Plant Genetics and Crop Breeding, Czech Agrifood Research Center, Drnovská 507, 161 06, Prague 6, Ruzyně, Czech Republic.

Plant physiology and biochemistry : PPB

|January 25, 2025

概括

温带植物因气候变化引起的脱适应而扎着冬季生存. 本综述探讨了影响小麦和大麦寒冷适应,脱适应和重新适应的因素,这些因素对冬季生存至关重要.

科学领域:

植物生物学植物生物学
环境压力生理学环境压力生理学
农业科学农业科学

背景情况:

温带植物依靠寒冷的适应和本地化才能在冬季生存.
气候变化导致温和的冬季,导致寒冷的不适应和矛盾地恶化了植物的生存.
在冬季过冬的Triticeae谷物中,特别是在白色化谷物中,重新适应能力有限.

研究的目的:

审查影响寒冷适应 (CA),脱适应 (DA) 和重新适应 (RA) 的主要因素,在冬季类型的三叶草 (小麦和大麦).
总结最近关于感知寒冷和信号通路的知识.
阐明植物应激记忆和冬季Triticeae重新适应中的本地化作用.

主要方法:

关于冷适应,脱适应和重新适应过程的当前科学文献的综述.
环境因素的讨论:冷却温度,光周期和光谱.
对植物性因素的分析:可溶性蛋白质,碳水化合物和分子应激记忆机制.

主要成果:

环境因素 (温度,光线) 和植物因素 (蛋白质,糖,压力记忆) 显著影响CA,DA和RA.
植被和植物压力记忆机制在冬季Triticeae重新适应中起着至关重要的作用.
在本地化过程中O-葡萄糖N-乙化会影响VRN1基因表达,并重新编程冷反应模块.

结论:

了解CA,DA和RA对于确保冬季谷物在不断变化的气候条件下生存至关重要.
植物的压力记忆和像O-葡萄糖N-乙化这样的表观遗传修饰是冷反应的关键调节者.
对这些机制的进一步研究可以改善温带地区的作物弹性.

关键词:

寒冷的适应寒冷的适应脱习惯脱习惯脱习惯光的质量,光的质量.摄影周期的光学周期重新适应重新适应三叶植物 (Triticeae) 是一种三叶植物.在本地化,在本地化.

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