Results 221 to 230 of about 94,475 (256)

The Dissimilatory Sulfate-Reducing Bacteria

1981
The 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, Friedrich Widdel, Hans G. Trüper   +2 more
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Sulfate-reducing anaerobic bacteria in human feces

The American Journal of Clinical Nutrition, 1977
Human 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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Nitrate and Nitrite Utilization in Sulfate-Reducing Bacteria

Anaerobe, 1997
Obligate 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, S, Bursakov, C, Costa, J J, Moura   +3 more
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Control of Sulfate‐Reducing Bacteria

Journal AWWA, 1965
Sulfate‐reducing bacteria have been implicated in numerous instances of damage, as recorded by Postgate. One of the most important of these situations is the corrosion of buried pipelines. Von Wolzogen Kuhr, in 1937, proposed the first widely accepted theory of the corrosion activity of sulfate‐ reducing bacteria. This thesis has been tested by Starkey
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Oxygen Tolerance of Sulfate-Reducing Bacteria in Activated Sludge

Environmental Science & Technology, 2004
The oxygen tolerance of sulfate-reducing bacteria (SRB) present in activated sludge was studied in batch incubations using radiolabeled [35S]sulfate and a most probable number (MPN) technique employing activated sludge medium. Sulfate reduction (SR) could not be detected in activated sludge during oxic incubation or in the presence of nitrate. However,
Kjeldsen, K.U.; id_orcid 0000-0002-7805-5605, Joulian, C., Ingvorsen, Kjeld   +2 more
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Ecology of Sulfate-Reducing Bacteria

1995
Microorganisms 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
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Sulfate-Reducing Bacteria and Archaea

2014
Sulfate-reducing bacteria (SRB) and archaea are widespread in nature and have been found in virtually every anaerobic environment that has been investigated. They play an important role in the global sulfur cycle, and in marine sediments they can account for up to 50% of the total carbon mineralization process.
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Genetics of the Sulfate-Reducing Bacteria

1993
Genetic studies of sulfate-reducing bacteria have lagged far behind physiological and biochemical investigations. The primary reason for this delay has derived from the strictly anaerobic growth mode of these bacteria and the consequent inability to obtain useful plating efficiencies for quantitation of cell numbers (Postgate et al., 1988).
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pH Regulation by Sulfate-reducing Bacteria

CORROSION 1993, 1993
Abstract Consideration of the exact degree of dissociation of all the weak acids involved in bacterial metabolisms shows that the SRB's regulate: the pH of their environment, at levels which depend on the potential secondary reactions: precipitation of FeS, oxidation of HS- to S2O3- - by traces of oxygen, metabolisation of this ...
Jean-Louis Crolet, Sylvie Daumas, Michel Magot   +2 more
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The Sulfate-Reducing Bacteria: An Overview

1993
The intent of this chapter is to review the properties of the sulfate-reducing (occasionally referred to as sulfidogenic) bacteria in general terms to provide a broad framework for the remaining chapters of the book. The chapter is to provide a bridge between material familiar to the general microbiologist reader and the specialized material that makes
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