Results 21 to 30 of about 19,850 (223)
Ecology and Noospherology, 2017 Sulfate reducing bacteria, capable to reductive transformation of different nature pollutants, used in biotechnologies of purification of sewage, contaminated by carbon, sulfur, nitrogen and metal compounds. H2S formed by them sediment metals to form of insoluble sulfides.
О. М. Мороз +4 more
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Microorganisms, 2023 Sulfate-reducing bacteria (SRB) are an important group of microorganisms that cause microbial corrosion. In this study, culturable SRB were isolated and identified from the inner rust layer of three kinds of steel and from sediments, and a comparison of ...
Jing Wang +8 more
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Microorganisms, 2021 Sulfur cycling is primarily driven by sulfate reduction mediated by sulfate-reducing bacteria (SRB) in marine sediments. The dissimilatory sulfate reduction drives the production of enormous quantities of reduced sulfide and thereby the formation of ...
Rikuan Zheng, Shimei Wu, Chaomin Sun
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DISSIMILATORY SULFATE REDUCTION BY VARIOUS DESULFOVIBRIO SP. STRAINS OF THE HUMAN INTESTINE
Microbiology&Biotechnology, 2013 The aim of this research was to study the dissimilatory sulfate reduction process by various Desulfovibrio sp. strains of the human intestine, such as bacterial growth, sulfate- and lactate usage, production of sulfide and acetate by the strains, and carry out cluster and correlation analyses of this process. Methods.
І. В. Кушкевич
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Determination of dissimilatory sulfate reduction rates in marine sediment via radioactive 35S tracer [PDF]
Limnology and Oceanography: Methods, 2014 Rates of dissimilatory sulfate reduction in aquatic sediments have been measured over many years with 35S‐radiotracer, and the method has been continuously modified and optimized. This article discusses the sequence of procedures that constitutes the method from sediment handling before incubation, via incubation and distillation, to statistical ...
Hans Røy +4 more
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Linkage of High Rates of Sulfate Reduction in Yellowstone Hot Springs to Unique Sequence Types in the Dissimilatory Sulfate Respiration Pathway [PDF]
Applied and Environmental Microbiology, 2003 ABSTRACT Diversity, habitat range, and activities of sulfate-reducing prokaryotes within hot springs in Yellowstone National Park were characterized using endogenous activity measurements, molecular characterization, and enrichment.
Susan Fishbain +3 more
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Dissimilatory sulfate reduction in the archaeon ‘Candidatus Vulcanisaeta moutnovskia’ sheds light on the evolution of sulfur metabolism [PDF]
Nature Microbiology, 2020 Dissimilatory sulfate reduction (DSR)-an important reaction in the biogeochemical sulfur cycle-has been dated to the Palaeoarchaean using geological evidence, but its evolutionary history is poorly understood. Several lineages of bacteria carry out DSR, but in archaea only Archaeoglobus, which acquired DSR genes from bacteria, has been proven to ...
N. A. Chernyh +14 more
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Bacterial dissimilatory reduction of arsenate and sulfate in meromictic Mono Lake, California [PDF]
Geochimica et Cosmochimica Acta, 2000 Abstract The stratified (meromictic) water column of alkaline and hypersaline Mono Lake, California, contains high concentrations of dissolved inorganic arsenic (∼200 μmol/L). Arsenic speciation changes from arsenate [As (V)] to arsenite [As (III)] with the transition from oxic surface waters (mixolimnion) to anoxic bottom waters (monimolimnion).
Ronald S. Oremland +9 more
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Dissimilatory nitrogen reduction in intertidal sediments of a temperate estuary: small scale heterogeneity and novel nitrate-to-ammonium reducers [PDF]
, 2015 The estuarine nitrogen cycle can be substantially altered due to anthropogenic activities resulting in increased amounts of inorganic nitrogen (mainly nitrate).
Decleyre, Helen +3 more
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Effect of pH on Dissimilatory Sulfate Reduction by Porcine Cecal Microflora
Nihon Chikusan Gakkaiho, 1998 異化型硫酸還元の結果,大腸で発生する硫化水素は生体にとって有害であり,発生を制御する必要が指摘されているが,大腸における硫酸還元菌の生理や生態はあまり知られていない.この実験では,大腸で起こる異化型硫酸還元のpH依存性について知ることを目的とした.ブタ盲腸液より調整した細菌懸濁液をpH4.5から7.4の範囲で14段階に調整した緩衝液中で12時間培養し,発生した硫化水素を定量した.このとき硫酸イオンと電子供与体(乳酸あるいは水素)は十分量供給した.至適pHは乳酸基質の場合6.1～6.4で,水素基質の場合の6.0よりやや高かった.
Kazunari Ushida +2 more
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