ISSN:
1420-9071
Keywords:
Catalase
;
hydroperoxidase
;
oxygen
;
peroxidase
;
singlet oxygen
;
superoxide dismutase
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract Although oxygen tensions in the halophilic environment are diminished, they are nevertheless sufficient for the generation of active oxygen intermediates as byproducts of metabolism. Therefore, like all other aerobes, halophilic bacteria are compelled to possess the means to detoxify potentially lethal active oxygen intermediates. This review examines the superoxide, hydrogen peroxide, hydroxyl radical and singlet oxygen scavenging capacity of the halophiles,Halobacterium spp. Specifically, it looks at the potential of the bacteria to generate active oxygen intermediates and then examines the roles of superoxide dismutase, catalase, peroxidase and catalase-peroxidase. It also looks at some non-enzymatic means of neutralizing potentially lethal active oxygen intermediates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01955155
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