谷胱甘肽/谷胱甘肽过氧化物酶系统在微生物细胞抗氧胁迫系统中的作用

被引：21
作者：
付瑞燕 [1 ]
陈坚 [2 ]
李寅 [3 ]
机构：
[1] 安徽农业大学茶与食品科技学院
[2] 江南大学工业生物技术教育部重点实验室
[3] 中国科学院微生物研究所
来源：
生物工程学报 | 2007年 / 05期
关键词：
微生物细胞; 谷胱甘肽/谷胱甘肽过氧化物酶系统; 抗氧胁迫;
D O I：
10.13345/j.cjb.2007.05.021
中图分类号：
Q932 [微生物细胞学];
学科分类号：
071009 ;
摘要：
谷胱甘肽(GSH)/谷胱甘肽过氧化物酶(GPx)系统在不同微生物细胞抵抗氧胁迫中的生理功能不尽相同。该系统在真核模式微生物酿酒酵母中是必需存在的,在维持胞内氧化还原平衡和抵抗氧胁迫中发挥主要作用。然而,在原核微生物中,该系统只是条件性的,即部分胞内存在谷胱甘肽还原酶和GPx的原核微生物,如流感嗜血杆菌和乳酸乳球菌,可通过从胞外吸收GSH,形成条件性的依赖于GSH的GPx系统,参与抵抗氧胁迫。
引用
收藏
页码：770 / 775
页数：6
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