Initial reactions in anaerobic alkane degradation by a sulfate reducer, strain AK-01
Article Abstract:
An alkane-degrading, sulfate-reducing bacterial strain has been isolated from a petroleum contaminated sediment and studied to find out about its alkane-metabolism mechanism. The strain, AK-01, can oxidize alkanes to carbon dioxide. Sulfate reduction also takes place. It appears that the alkanes are anaerobically oxidized to fatty acids. Exogenous carbon seems to be added initially to an alkane at the C-2 position in such a way that the original terminal carbon on the alkane becomes a methyl group on the fatty acid formed after that. The carbon-addition reaction seems not to be a direct carboxylation of inorganic bicarbonate.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Phylogenetic affinity of a wide, vacuolate, nitrate-accumulating Beggiatoa sp. from Monterey Canyon, California with Thioploca spp
Article Abstract:
Complete 16S rRNA gene sequence analysis was undertaken to study the phylogeny of a wide, vacuolate and nitrate-accumulating Beggiatoa sp. obtained from natural populations found in Monterey Canyon cold seeps. The Monterey Beggiatoa is a dominant clone based on restriction fragment length polymorphism analysis of a clone library. A phylogenetic tree indicates the Monterey Beggiatoa falls under the gamma subdivision of Proteobacteria.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Modeling reduction or uranium U(VI) under variable sulfate concentrations by sulfate-reducing bacteria
Article Abstract:
Results demonstrate both pure and mixed cultures of sulfate-reducing bacteria reduce uranium at a faster rate in the presence of sulfate with no lag phase in contrast to uranium alone. Implications of these findings in the design of biotreatment plants with bacteria for the removal of U(VI) are discussed.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2000
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