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植物在水淹条件下的生理和生化变化。

Physiological and biochemical changes in plants under waterlogging.

机构信息

Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.

出版信息

Protoplasma. 2010 May;241(1-4):3-17. doi: 10.1007/s00709-009-0098-8. Epub 2010 Jan 12.

Abstract

Waterlogging usually results from overuse and/or poor management of irrigation water and is a serious constraint with damaging effects. The rapidly depleting oxygen from submerged root zone is sensed and plant adjusts expressing anaerobic proteins. Plant cells shift their metabolism towards low energy yielding anaerobic fermentation pathways in the absence of oxygen. Structural modifications are also induced as aerenchyma formation and adventitious rootings, etc. Studies at molecular and biochemical levels to facilitate early perception and subsequent responses have also been worked out to produce resistant transgenic plants. This review explores the sequential changes of plant responses at different levels regarding their defense strategies and efforts made to enhance them, tailoring crucial regulators so that they can withstand waterlogging stress.

摘要

涝害通常是由于过度使用和/或灌溉水管理不善造成的,是一种严重的限制因素,具有破坏性影响。迅速耗尽的淹没根区的氧气被感知到,植物会调整表达无氧蛋白。在缺氧的情况下,植物细胞将其新陈代谢转向低能量产生的无氧发酵途径。结构修饰也被诱导,如通气组织形成和不定根形成等。在分子和生化水平上进行的研究也有助于早期感知和随后的反应,以产生抗逆性转基因植物。本综述探讨了植物在不同水平上的反应的顺序变化,以及为增强防御策略所做的努力,定制关键调节剂,使它们能够耐受涝渍胁迫。

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