Behavioral response of dissimilatory perchlorate-reducing bacteria to different electron acceptors
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چکیده
منابع مشابه
Dissimilatory reduction of extracellular electron acceptors in anaerobic respiration.
An extension of the respiratory chain to the cell surface is necessary to reduce extracellular electron acceptors like ferric iron or manganese oxides. In the past few years, more and more compounds were revealed to be reduced at the surface of the outer membrane of Gram-negative bacteria, and the list does not seem to have an end so far. Shewanella as well as Geobacter strains are model organi...
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The Hg-methylating ability of dissimilatory iron-reducing bacteria in the genera Geobacter, Desulfuromonas, and Shewanella was examined. All of the Geobacter and Desulfuromonas strains tested methylated mercury while reducing Fe(III), nitrate, or fumarate. In contrast, none of the Shewanella strains produced methylmercury at higher levels than abiotic controls under similar culture conditions. ...
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Evolutionary relationships among strictly anaerobic dissimilatory Fe(III)-reducing bacteria obtained from a diversity of sedimentary environments were examined by phylogenetic analysis of 16S rRNA gene sequences. Members of the genera Geobacter, Desulfuromonas, Pelobacter, and Desulfuromusa formed a monophyletic group within the delta subdivision of the class Proteobacteria. On the basis of the...
متن کاملUbiquity and diversity of dissimilatory (per)chlorate-reducing bacteria.
Environmental contamination with compounds containing oxyanions of chlorine, such as perchlorate or chlorate [(per)chlorate] or chlorine dioxide, has been a constantly growing problem over the last 100 years. Although the fact that microbes reduce these compounds has been recognized for more than 50 years, only six organisms which can obtain energy for growth by this metabolic process have been...
متن کاملTitle of Document : MERCURY METHYLATION IN DISSIMILATORY IRON - REDUCING BACTERIA
Title of Document: MERCURY METHYLATION IN DISSIMILATORY IRON-REDUCING BACTERIA 22BElizabeth Johanna Kerin, Master of Science, 2007 Directed By: Dr. Marcelino Suzuki, Marine, Estuarine and Environmental Sciences Microbial mercury methylation is an integral factor controlling methylmercury concentrations within aquatic ecosystems. This thesis explores the phylogenetic distribution and biochemistr...
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ژورنال
عنوان ژورنال: Applied Microbiology and Biotechnology
سال: 2009
ISSN: 0175-7598,1432-0614
DOI: 10.1007/s00253-009-2051-3