抗氧化酶在植物抗旱过程中的功能研究进展

摘要

Drought stress induces plant producing mass of reactive oxygen (ROS),which can influence plant growth and development when it could not be scavenged from plant organisms in time.The antioxidant enzymes play an important role in the process of scavenging ROS.Here,the plant main antioxidant enzymes ( superoxide dismutase,peroxidase,catalase,a-scorbate peroxidase,monodehydroascorbate reductase,dehydroascorbate reductase and glutathione reductase ) were re-viewed for their functions in plant drought stress.Moreover,the application of antioxidant enzymes in genetic engineering was also reviewed.%干旱会导致植物产生大量活性氧,如果不能及时清除,会影响植物正常生长和发育.植物体内抗氧化酶在清除活性氧的过程中发挥重要作用.介绍了植物体内几种主要的抗氧化酶(超氧化物歧化酶、过氧化氢酶、抗坏血酸过氧化物酶、单脱氢抗坏血酸还原酶、脱氢抗坏血酸还原酶和谷胱甘肽还原酶)在植物抗旱过程中的功能,并对抗氧化酶在抗旱基因工程中的研究进展进行了综述.