Comparative studies on tetrachloroethene reductive dechlorination mediated by Desulfitobacterium sp. strain PCE-S

被引：91

作者：

Miller, E ^{[1
]}

Wohlfarth, G ^{[1
]}

Diekert, G ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Mikrobiol, D-70569 Stuttgart, Germany

来源：

ARCHIVES OF MICROBIOLOGY | 1997年 / 168卷 / 06期

关键词：

corrinoids; Dehalospirillum multivorans; Desulfitobacterium; tetrachloroethene dehalogenase; propyl iodide; reductive dechlorination; strain PCE-S; tetrachloroethene; trichloroethene;

D O I：

10.1007/s002030050529

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Tetrachloroethene reductive dechlorination was studied with cell extracts of a newly isolated, tetrachloroethene-utilizing bacterium, Desulfitobacterium sp. strain PCE-S. Tetrachloroethene dehalogenase mediated the reductive dechlorination of tetrachloroethene and trichloroethene to cis-1,2-dichloroethene with artificial electron donors such as methyl viologen. The chlorinated aromatic compounds tested so far were not reduced. A low-potential electron donor (E-0' < -0.4 V) was required for tetrachloroethene reduction. The enzyme in its reduced state was inactivated by propyl iodide and reactivated by light, indicating the involvement of a corrinoid in reductive tetrachloroethene dechlorination.

引用

页码：513 / 519

页数：7

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