叶绿体膜脂在非生物胁迫响应中的作用。
The roles of chloroplast membrane lipids in abiotic stress responses.
机构信息
Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University , Jinan, Shandong, China.
College of Marine Life Sciences and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China , Qingdao, China.
出版信息
Plant Signal Behav. 2020 Nov 1;15(11):1807152. doi: 10.1080/15592324.2020.1807152. Epub 2020 Aug 20.
Abstract
Plant chloroplasts have complex membrane systems. Among these, thylakoids serve as the sites for photosynthesis and photosynthesis-related adaptation. In addition to the photosynthetic membrane complexes and associated molecules, lipids in the thylakoid membranes, are predominantly composed of MGDG (monogalactosyldiacylglycerol), DGDG (digalactosyldiacylglycerol), SQDG (sulfoquinovosyldiacylglycerol) and PG (phosphatidylglycerol), play essential roles in shaping the thylakoid architecture, electron transfer, and photoregulation. In this review, we discuss the effect of abiotic stress on chloroplast structure, the changes in membrane lipid composition, and the degree of unsaturation of fatty acids. Advanced understanding of the mechanisms regulating chloroplast membrane lipids and unsaturated fatty acids in response to abiotic stresses is indispensable for improving plant resistance and may inform the strategies of crop breeding.
摘要
植物叶绿体具有复杂的膜系统。其中，类囊体作为光合作用和与光合作用相关的适应的场所。除了光合膜复合物和相关分子外，类囊体膜中的脂质主要由 MGDG（单半乳糖二酰甘油）、DGDG（双半乳糖二酰甘油）、SQDG（硫酸奎诺二酰甘油）和 PG（磷脂酰甘油）组成，在塑造类囊体结构、电子传递和光调节中起着至关重要的作用。在这篇综述中，我们讨论了非生物胁迫对叶绿体结构、膜脂组成变化和脂肪酸不饱和度的影响。深入了解调节叶绿体膜脂和不饱和脂肪酸对非生物胁迫反应的机制，对于提高植物的抗性是必不可少的，并且可能为作物育种策略提供信息。
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