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FEMS Microbiol Lett. 1995 Oct 15;132(3):271-6.

Heavy metal effects on Proteus mirabilis superoxide dismutase production.

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1
School of Medicine, Southern Illinois University at Carbondale 62901-4413, USA.

Abstract

Proteus mirabilis expressed three superoxide dismutase activities, which depended on the level of soluble iron and dioxygen in the culture medium. Cadmium and lead decreased production of super oxide dismutase in liquid culture and on solid medium. A fourth super oxide dismutase activity appeared in extracts from cells grown in the presence of cadmium. These results support the idea of an interaction between toxic metal ions and putative iron- and redox-dependent regulatory systems.

PMID:
7590184
[Indexed for MEDLINE]
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