作　　者： ; ;

机构地区： 南昌大学生命科学与食品工程学院

出　　处： 《南昌大学学报（理科版）》 1996年第1期24-27,共4页

摘　　要： 研究了玉米幼苗不同器官和不同细胞器ＳＯＤ同工酶及其与膜脂过氧化的关系。结果表明．玉米不同器官和不同细胞器ＳＯＤ—ＰＡＧＥ图谱均显示相同的６条酶带，但它们的６条酶带酶活大小有差异。不同细胞器ＳＯＤ类型不同，线粒体第６条酶带为Ｍｎ－ＳＯＤ．而叶绿体第２条谱带为Ｍｎ—ＳＯＤ，其余的５条酶带均为Ｃｕ／Ｚｎ—ＳＯＤ．ＳＯＤ同工酶活力水平与膜脂过氧化水平呈现负相关。 Distribution of superoxide dismutase (SOD) isozymes in different organs and subcellular fractionations of maize and their relationship with peroxidation of membrane lipids were studied.The six bands of SOD were found in all of the organ and subcellular fractionation in the zymograms of PAGE, and their activities were difference among different organs and subcellular fractions. The 6th bands of enzyme in mitochondria and the 3rd band of enzyme in chloroplast were Mn-SOD, and the other bands were Cu/Zn-SOD. The level of SOD activity was negativelty relative to peroxidation of membrane lipids.

关 键 词： 玉米 同工酶 器官 细胞器 超氧化物歧化酶

领　　域： [农业科学]