Growth in sulfidic mineral environments: metal resistance mechanisms in acidophilic micro-organisms

被引:250
|
作者
Dopson, M [1 ]
Baker-Austin, C [1 ]
Koppineedi, PR [1 ]
Bond, PL [1 ]
机构
[1] Univ E Anglia, Sch Biol Sci, Norwich NR4 7TJ, Norfolk, England
来源
MICROBIOLOGY-SGM | 2003年 / 149卷
关键词
FERROUS IRON OXIDATION; BACTERIUM THIOBACILLUS-FERROOXIDANS; ESCHERICHIA-COLI; ACIDITHIOBACILLUS-FERROOXIDANS; ARSENIC RESISTANCE; ACIDIPHILIUM-MULTIVORUM; MERCURY RESISTANCE; OXIDIZING ABILITY; CORRODED CONCRETE; HEAVY-METALS;
D O I
10.1099/mic.0.26296-0
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Acidophilic micro-organisms inhabit some of the most metal-rich environments known, including both natural and man-made ecosystems, and as such are ideal model systems for study of microbial metal resistance. Although metal resistance systems have been studied in neutrophilic micro-organisms, it is only in recent years that attention has been placed on metal resistance in acidophiles. The five metal resistance mechanisms identified in neutrophiles are also present in acidophiles, in some cases utilizing homologous proteins, but in many cases the degree of resistance is greater in acidophiles. This review summarizes the knowledge of acidophile metal resistance and presents preliminary in silico studies on a few known metal resistance systems in the sequenced acidophile genomes.
引用
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页码:1959 / 1970
页数:12
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