红树植物对水淹缺氧的生理响应研究进展

水淹缺氧是红树植物主要的胁迫因子之一。因其水淹耐性不同，不同种类的红树植物分布在不同高程的潮滩上。长期生长在受周期性海水浸渍、缺氧的淤泥中的红树植物已特化出一套适应水淹缺氧环境的适应机制。文中着重论述红树植物在生长与营养分配、光合作用和呼吸作用、碳氮代谢、抗氧化机制等方面的适应机制，并对红树植物在水淹缺氧胁迫下根系代谢途径、非结构性碳水化合物、次生代谢等方面提出研究展望。

Physiological Responses of Mangroves to Flooding and Anaerobic Stress

Flooding and anaerobic stress is one of the stress factors affecting mangroves. Mangrove species, differing considerably in their susceptibility to the stress, are distributed in different tidal elevation zones. Growing in regular seawater dipping and anoxic mud, mangroves have developed a set of adaptation mechanisms of flooding and anaerobic stress. This paper emphatically reviewed four physiological responses of mangroves to flooding and anaerobic stress, i.e. nutrition allocation, photosynthesis and respiration, carbon and nitrogen metabolism and antioxidant mechanism. Finally, it was proposed that studies should be further focused on the path of roots metabolism, non-structure carbohydrates and secondary metabolism of the mangroves under flooding and anaerobic condition.