Results 211 to 220 of about 94,640 (251)
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Oxygen defense in sulfate-reducing bacteria
Journal of Biotechnology, 2006Sulfate-reducing bacteria (SRB) are strict anaerobes that are often found in biotopes where oxic conditions can temporarily exist. The bacteria have developed several defense strategies in order to survive exposure to oxygen. These strategies includes peculiar behaviors in the presence of oxygen, like aggregation or aerotaxis, and enzymatic systems ...
Marjorie Fournier, Alain Dolla
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Reduction of molybdate by sulfate-reducing bacteria
BioMetals, 2009Molybdate is an essential trace element required by biological systems including the anaerobic sulfate-reducing bacteria (SRB); however, detrimental consequences may occur if molybdate is present in high concentrations in the environment. While molybdate is a structural analog of sulfate and inhibits sulfate respiration of SRB, little information is ...
Keka C, Biswas +3 more
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Sulfate‐reducing bacteria in association with human periodontitis
Journal of Clinical Periodontology, 2000AbstractBackground, aims: Sulfate‐reducing bacteria (SRB) may be etiologically involved in destructive periodontal diseases. These strictly anaerobic bacteria utilize fermentation products for energy conservation by reduction of sulfate to sulfide. This toxic product can accumulate in periodontal pockets in concentrations causing cellular destruction ...
Langendijk-Geneveaux, P.S. +2 more
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2020
For the first billion years or so on earth, sulfur was more important to life than oxygen. Inorganic sulfate metabolism in anerobic sulfate reducing bacteria involves eight-electron reduction of sulfate to hydrogen sulfide. Sulfate dianion is first activated to the mixed sulfuric–phosphoric anhydride adenyl sulfate (AMP-sulfate) to set up attack by a ...
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For the first billion years or so on earth, sulfur was more important to life than oxygen. Inorganic sulfate metabolism in anerobic sulfate reducing bacteria involves eight-electron reduction of sulfate to hydrogen sulfide. Sulfate dianion is first activated to the mixed sulfuric–phosphoric anhydride adenyl sulfate (AMP-sulfate) to set up attack by a ...
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Technetium reduction and precipitation by sulfate‐reducing bacteria
Geomicrobiology Journal, 1998Resting cells of the sulfate‐reducing bacterium Desulfovibrio desulfuricans ATCC 29577 were able to precipitate the radionuclide technetium, supplied as the pertechnetate anion (TcO4 ‐), under anaerobic conditions by two discrete mechanisms. Sulfidogenic cultures, supplied with sulfate and lactate as an electron acceptor and donor, respectively ...
Lloyd, J. R.; id_orcid 0000-0002-0719-0498 +4 more
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Metabolism of Explosive Compounds by Sulfate-Reducing Bacteria
Current Microbiology, 1998The metabolism of various explosive compounds-1,3,5-trinitrobenzene (TNB), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX)-by a sulfate-reducing bacterial consortium, Desulfovibrio spp., was studied. The results indicated that the Desulfovibrio spp.
R, Boopathy +3 more
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The diversity of sulfate-reducing bacteria in the seven bioreactors
Archives of Microbiology, 2018Anaerobic technology has a wide scope of application in different areas such as manufacturing, food industry, and agriculture. Nowadays, it is mainly used to produce electrical and thermal energy from crop processing, solid waste treatment or wastewater treatment.
Ivan Kushkevych +4 more
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Sulfate-Reducing Bacteria and Pyritic Sediments in Antarctica
Science, 1961Black lacustrine and marine sediments occur in the McMurdo Sound region of Antarctica. The black color is due to the presence of iron sulfide, precipitated by sulfate-reducing bacteria ( Desulfovibrio ) in the presence of decaying organic matter of algal origin.
E S, Barghoorn, R L, Nichols
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The Dissimilatory Sulfate-Reducing Bacteria
1981The microbial reduction of elemental sulfur to hydrogen sulfide under anaerobic conditions has been observed and described repeatedly during the past 100 years (Beijerinck, 1895; Omelianski, 1904; Pelsh, 1936; Roy and Trudinger, 1970; Starkey, 1937; Woolfolk, 1962).
Norbert Pfennig +2 more
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Sulfate-reducing anaerobic bacteria in human feces
The American Journal of Clinical Nutrition, 1977Human feces contain: 1) Chemotrophic anaerobic bacteria (strains XII, 57, IV) identified with D. desulfuricans ssp. faecalis (nov. ssp.) at a level approaching 10 7/g. 2) Organotrophic anaerobic gram positive rods (strains 30, 35, and 43) at between 10(5) and 10 7/g.
H, Beerens, C, Romond
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