TRANSMEMBRANE PH OF CLOSTRIDIUM-ACETOBUTYLICUM IS INVERTED (MORE ACIDIC INSIDE) WHEN THE IN-VIVO ACTIVITY OF HYDROGENASE IS DECREASED

被引：20

作者：

GIRBAL, L ^{[1
]}

VASCONCELOS, I ^{[1
]}

SOUCAILLE, P ^{[1
]}

机构：

[1] INST NATL SCI APPL,INRA,CTR BIOINGN GILBERT DURAND,CNRS,UA 544,ASS LAB,F-31077 TOULOUSE,FRANCE

来源：

JOURNAL OF BACTERIOLOGY | 1994年 / 176卷 / 19期

关键词：

D O I：

10.1128/jb.176.19.6146-6147.1994

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Evidence is reported here that alkalinization of Clostridium acetobutylicum cytoplasm involves hydrogenase activity. A decrease of in vivo hydrogenase activity is accompanied by intracellular accumulation of protons leading to a negative (interior acidic) pH gradient. How ever, the organism is able to maintain a constant proton motive force by interconverting chemical and electrical potentials.

引用

页码：6146 / 6147

页数：2

共 14 条

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