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Free Content The Uptake and Accumulation of Iron by the Intestinal Bacterium Desulfotomaculum acetoxidans DSM 771

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Abstract:

Sulfate-reducing bacteria (e.g. Desulfotomaculum acetoxidans) exist in animal intestine. These bacteria are able to bind heavy metals (e.g. cadmium or lead). Comparative investigations on the composition of cellular walls of Desulfotomaculum acetoxidans - depending on the initial Fe2+ supplement in the medium (7.5, 57.5 and 507.5 M) were performed. Iron(II) was cumulated as FeS or as pyrite (FeS2). However, if the initial amount of iron was higher, its majority (46% 85%) was transported onto the membrane. It was determined that the siderophore found in Desulfotomaculum acetoxidans was deferroxamine as in animals.

Keywords: ACCUMULATION; CELL WALL; DEFERROXAMINE SIDEROPHORE; FERROUS SULFIDES

Document Type: Research Article

DOI: https://doi.org/10.3409/1734916054663519

Publication date: 2005-06-01

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  • Folia biologica is an international quarterly journal that publishes papers on the broad field of experimental zoology, nuclear and chromosome research, and also ultrastructural studies. All papers are subject to peer reviews. Indexed in: ISI Master Journal List, Current Contents, Polish Scientific Journals Contents. I.F. 0.667
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