Results 171 to 180 of about 12,578 (193)
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Automated screening of inhibitors of bacterial dissimilatory sulfate reduction
Applied Microbiology and Biotechnology, 1991An automated assay system was used to screen inhibitors of sulfide formation by sulfate-reducing bacteria. The system used a Technicon AutoAnalyzer II instrument both as an incubation chamber (to combine bacterial cells, substrates, and test compounds) and as an analyzer of the amount of sulfide formed during incubation. A lactate-limited chemostat was
P J, Weimer, F B, Cooling
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Nutritional Aspects of Dissimilatory Sulfate Reduction in the Human Large Intestine
Current Microbiology, 1997In contrast to other anaerobic ecosystems, such as marine and estuarine sediments, there is a lack of information on the nutritional requirements of human gut sulfate-reducing bacteria (SRB). Various substrates stimulated sulfate reduction in mixed culture, including short-chain fatty acids and other organic acids, alcohols, and amino acids (but not ...
C L, Willis +3 more
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Spotting zones of dissimilatory sulfate reduction in a forested catchment: the 34S-35S approach
Environmental Pollution, 2001The localization of sulfate reducing sites in forested catchments is of major importance, because dissimilatory sulfate reduction can be a considerable sink for deposited sulfate. To localize dissimilatory sulfate reduction sites in a forested catchment (northeastern Bavaria, Germany), three sites within the catchment (upland site, intermittent seep ...
Christine Alewell, Martin Novak
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Dissimilatory Sulfate Reduction, Energetic Aspects
1981Several strict anaerobic prokaryotes are capable of using sulfate as electron acceptor for catabolic oxidation processes. In doing so sulfate is reduced to H2S (Fig. 1). Respiration with sulfate as acceptor is termed dissimilatory sulfate reduction, bacteria capable of sulfate respiration are classifled as sulfate-reducing bacteria.
R. K. Thauer, W. Badziong
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Geochimica et Cosmochimica Acta, 2014
Abstract Although dissimilatory iron and sulfate reduction (DIR and DSR) profoundly affect the biogeochemical cycling of C, Fe, and S in subsurface systems, the dynamics of DIR and DSR in the presence of both FeIII (hydr)oxides and sulfate have not been well-studied with mixed microbial populations.
Man Jae Kwon +7 more
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Abstract Although dissimilatory iron and sulfate reduction (DIR and DSR) profoundly affect the biogeochemical cycling of C, Fe, and S in subsurface systems, the dynamics of DIR and DSR in the presence of both FeIII (hydr)oxides and sulfate have not been well-studied with mixed microbial populations.
Man Jae Kwon +7 more
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2022
<p>In the oligotrophic bottom waters of a post-mining lake (Lake Medard, Czechia), ferruginous conditions occur without quantitative sulfate depletion. The dissolved organic matter supply to the deep waters is small and, accordingly, sulfate reduction promoting precipitation of stable ferrous sulfides is limited.
Daniel A. Petrash +5 more
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<p>In the oligotrophic bottom waters of a post-mining lake (Lake Medard, Czechia), ferruginous conditions occur without quantitative sulfate depletion. The dissolved organic matter supply to the deep waters is small and, accordingly, sulfate reduction promoting precipitation of stable ferrous sulfides is limited.
Daniel A. Petrash +5 more
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Water Research, 2013
In this study, a novel approach was developed for sulfate - containing wastewater treatment via dosing Fe₂O₃ in a two - stage anaerobic reactor (A1, S1). The addition of Fe₂O₃ in its second stage i.e. acidogenic sulfate-reducing reactor (S1) resulted in microbial reduction of Fe (III), which significantly enhanced the biological sulfate reduction.
Jingxin Zhang, Yaobin Zhang, Xie Quan
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In this study, a novel approach was developed for sulfate - containing wastewater treatment via dosing Fe₂O₃ in a two - stage anaerobic reactor (A1, S1). The addition of Fe₂O₃ in its second stage i.e. acidogenic sulfate-reducing reactor (S1) resulted in microbial reduction of Fe (III), which significantly enhanced the biological sulfate reduction.
Jingxin Zhang, Yaobin Zhang, Xie Quan
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Dissimilatory Sulfate Reduction, Mechanistic Aspects
1981Dissimilatory sulfate-reducing bacteria, belonging to the genera Desulfovibrio and Desulfotomaculum can carry out the process of anaerobic respiration by utilizing inorganic sulfate as a terminal electron acceptor. The overall process of dissimilatory sulfate reduction may be considered to occur in two phases.
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Dissimilatory sulfate reduction in hypersaline coastal pans: Activity across a salinity gradient
Geochimica et Cosmochimica Acta, 2007The impact of salinity on the metabolic activity of sulfate-reducing bacteria in five highly saline to hypersaline coastal pans was studied using a radioactive tracer ð 35 SO4 2 Þ technique. We recorded sulfate reduction at in situ porewater salinities of up to 422.
Donovan Porter +2 more
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Geochimica et Cosmochimica Acta, 2008
Abstract The stable isotopes of sulfate are often used as a tool to assess bacterial sulfate reduction on the macro scale. However, the mechanisms of stable isotope fractionation of sulfur and oxygen at the enzymatic level are not yet fully understood.
Mangalo, Muna +3 more
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Abstract The stable isotopes of sulfate are often used as a tool to assess bacterial sulfate reduction on the macro scale. However, the mechanisms of stable isotope fractionation of sulfur and oxygen at the enzymatic level are not yet fully understood.
Mangalo, Muna +3 more
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