摘要
过氧化物酶（ＰＯＸ）和超氧化物歧化酶（ＳＯＤ）是细胞保护酶系统中的主要酶，它们在植物的抗逆与抗病中有着重要作用。本文研究了棉花４个品种（ＸＹ－３１，泗棉２号，８９Ａ－４２和苏棉４号）在无菌条件下生长的三个时期（种期Ｓ１，芽期Ｓ２，苗期Ｓ３）的ＰＯＸ活性变化及其同工酶谱带变化，结果表明：ＰＯＸ在Ｓ１期不显示活性，而在Ｓ２和Ｓ３期酶活性逐渐增高。ＳＯＤ酶活力和同工酶酶谱则呈逐渐减弱趋势。它们可能与棉花正常微生物群的减少有关。统计分析显示。
Peroxidase (POX) and superoxide dismutase (SOD) are major enzymes in the cell protectase system.These enzymes play important roles on resistant to adverse circumstances and diseases.In this paper the variation of POX and SOD activities and their isozyme spectrum of four cotton species (XY-31,Shi-cotton-2,89A-42 and Shu-cotton-4) in three stages (seed (S1),bud (S2),seedling (S3) were studied under the growth conditions of germ-free.The results show that POX shows no activities in seed stage,but the activities rise up gradually in bud and seedling stages,and that the SOD activities and SOD isozymes tend to decrease gradually from seed stage to seedling stages.These might be related to the decreasing of micro-organism groups of robust cotton.The statistic analysis indicate that there are significant differences of POX activities between defferent cototon species and different growth stages.
出处
《南昌大学学报（理科版）》
CAS
1996年第4期309-313,共5页
Journal of Nanchang University(Natural Science)
基金
国家自然科学基金
关键词
过氧化物酶
SOD
细胞保护酶
棉花
pobust cotton,peroxidase,superoxide dismutase,constant micro-organism group
