Microbial reduction of manganese and iron: New approaches to carbon cycling. [Shewanella putrefaciens]
- Univ. of Wisconsin, Milwaukee (United States)
- Medical Coll. of Wisconsin, Milwaukee (United States)
This brief review introduces the reader to the importance and conceptual aspects of microbial metal reduction by focusing on a single group of Mn(IV)- and Fe(III)-reducing organisms in the group Shewanella putrefaciens. While this group is abundant and of worldwide distribution, it is only the tip of a very large iceberg' of metal reducers. A good example of another metal reducer is the organism GS-15, an obligate anaerobe with substantial carbon versatility and an ability to tolerate very high concentrations of metals. In addition, the authors have now isolated over 200 strains of manganese reducers (MR-203 is their latest organism), consisting of a wide variety of different taxa, including Pseudomonas spp., Bacillus spp., and many others. These isolates are from very diverse environments, including Lake Oneida, N.Y.; Lake Michigan; Green Bay, Wis.; the Black Sea; and Lake Baikal, USSR. A careful coupling of field and laboratory studies will be needed before the importance of these metal-reducing microbes, and their associated activities, are adequately understood.
- OSTI ID:
- 5561533
- Journal Information:
- Applied and Environmental Microbiology; (United States), Vol. 58:2; ISSN 0099-2240
- Country of Publication:
- United States
- Language:
- English
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