生态学杂志2012,Vol.31Issue(10):2662-2672,11.
植物淹水胁迫的生理学机制研究进展
Plant physiological mechanisms in adapting to waterlogging stress: A review
摘要
Abstract
Waterlogging stress causes low light condition, and makes gas diffusion limited, plant leaf membrane lipid peroxidation induced, endogenous protective enzyme system damaged, chlorophyll degraded, MDA accumulation promoted, and photosynthetic rate declined. To adapt to waterlogging, plants develop a series of effective physiological and biochemical mechanisms to keep normal life activity, e. g. , maintaining the balance of cell osmotic potential via regulating osmolyte contents, increasing intracellular antioxidant enzyme activities to remove free radicals and to prevent or reduce cell injury, and changing metabolic paths and regulating hormones to maintain energy reserves and lower rate metabolism. This paper summarized the research advances in the impacts of waterlogging stress on plant cell membrane system and its function, photosynthesis , respiration, hormones, physiological metabolism, and gene regulation, as well as the changes of plant ecological and physiological characteristics after waterlogging, and revealed the adaptation mechanisms of plants to waterlogging stress. It was suggested that to study the molecular mechanisms of plants in response to waterlogging and the effects of environmental factors on submerged plants and to make site-specific observations on the waterlogging stress on forests would be the important research aspects in the future.关键词
植物/淹水胁迫/生理代谢/生理机制Key words
plant/ waterlogging stress/ physiological metabolism/ physiological mechanism.分类
农业科技引用本文复制引用
潘澜,薛立..植物淹水胁迫的生理学机制研究进展[J].生态学杂志,2012,31(10):2662-2672,11.基金项目
广东省林业局项目(4400-F02084)资助. (4400-F02084)