Results 251 to 260 of about 207,091 (293)
Some of the next articles are maybe not open access.
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
openaire +3 more sources
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 ...
openaire +1 more source
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 ...
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
Nitrate and Nitrite Utilization in Sulfate-Reducing Bacteria
Anaerobe, 1997Obligate anaerobic sulfate-reducing bacteria are one of the important groups of microorganisms that participate in different chains of organic matter degradation and carry out the process of dissimilatory sulfate reduction [1,2]. These bacteria made a very significant ecological link on the ways carbon (nitrogen) and sulfur compounds are transformed in
I, Moura +3 more
openaire +2 more sources
Ecology of Sulfate-Reducing Bacteria
1995Microorganisms play key roles in the assimilation—dissimilation steps and oxidation-reduction processes of the global sulfur cycle. The dissimilatory reduction of sulfur compounds is an essential step in the biological sulfur cycle (LeGall and Fauque, 1988; LeFaou et al., 1990; Fauque et al., 1991; Widdel and Hansen, 1992). This dissimilatory reduction
openaire +1 more source