Desulfobacter halotolerans sp nov, a halotolerant acetate-oxidizing sulfate-reducing bacterium isolated from sediments of Great Salt Lake, Utah

被引：46

作者：

Brandt, KK ^{[1
]}

Ingvorsen, K ^{[1
]}

机构：

[1] AARHUS UNIV,INST BIOL SCI,DEPT MICROBIAL ECOL,DK-8000 AARHUS C,DENMARK

来源：

SYSTEMATIC AND APPLIED MICROBIOLOGY | 1997年 / 20卷 / 03期

关键词：

anaerobic acetate-oxidation; sulfate-reducing bacteria; hypersaline environments; Desulfobacter halotolerans; halotolerance;

D O I：

10.1016/S0723-2020(97)80004-5

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Dissimilatory acetate-oxwidizing sulfate-reducing bacteria were enriched from hypersaline sediments of the Great Salt Lake (Utah, USA) in a synthetic medium. Three mesophilic rod-shaped strains were isolated from deep-agar dilution series, and one strain (GSL-Ac1) was chosen for further studies, Strain GSL-Acl showed a high degree of salt tolerance (up to 13% NaCl and 4.5% MgCl2 . 6H(2)O), but displayed optimum growth with only 1-2% NaCl in the medium. 16S rDNA sequencing placed GSL-Acl in the genus Desulfobacter. On the basis of DNA-DNA hybridization studies and physiological differences, we describe strain GSL-Acl as a new species, Desulfobacter halotolerans sp. nov. Strain GSL-Acl showed the highest NaCl-tolerance reported for any member of the genus Desulfobacter.

引用

页码：366 / 373

页数：8

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