菠菜甜菜碱醛脱氢酶对甜菜碱醛的氧化

被引：7

作者：

梁峥

赵原

李浴春

邹喻苹

骆爱玲

黄巨富

机构：

[1] 中国科学院植物研究所

来源：

JournalofIntegrativePlantBiology | 1991年 / 09期

基金：

国家科技攻关计划;

关键词：

甜菜碱醛脱氢酶; 菠菜; 同工酶; 阳离子;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

测定了15种植物叶片的甜菜碱含量。结果表明,抗盐碱、干旱和抗寒的植物含量较高。从菠菜叶片分离和部分纯化了甜菜碱醛脱氢酶,并对其某些性质进行了研究。甜菜碱醛脱氢酶存在于60%的硫酸铵部分,70%硫酸铵部分未检出其活性。该酶有两个同工酶,在-80℃条件下十分稳定,其活性为0.125—1.0mol/L的NaCl和KCl所抑制,但Mn2+和Mo6+离子对活性没有影响,而Mg2+稍增加其活性。

引用

页码：680 / 686

页数：7

共 12 条

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