Results 11 to 20 of about 12,578 (193)

Simultaneous sulfate and nitrate reduction in coastal sediments

ISME Communications, 2023
The oscillating redox conditions that characterize coastal sandy sediments foster microbial communities capable of respiring oxygen and nitrate simultaneously, thereby increasing the potential for organic matter remineralization, nitrogen (N)-loss and ...
O. M. Bourceau, T. Ferdelman, G. Lavik, M. Mussmann, M. M. M. Kuypers, H. K. Marchant   +5 more
doaj   +2 more sources

Quantification and isotopic analysis of intracellular sulfur metabolites in the dissimilatory sulfate reduction pathway [PDF]

Geochimica et Cosmochimica Acta, 2017
Abstract Microbial sulfate reduction exhibits a normal isotope effect, leaving unreacted sulfate enriched in 34 S and producing sulfide that is depleted in 34 S. However, the magnitude of sulfur isotope fractionation is quite variable. The resulting changes in sulfur isotope abundance have been used to trace microbial sulfate reduction in modern ...
Sim, Min Sub, Paris, Guillaume, Adkins, Jess F., Orphan, Victoria J., Sessions, Alex L.   +4 more
openaire   +3 more sources

Dose-dependent effect of electron acceptor and donor on dissimilatory sulfate reduction by bacteria Desulfovibrio Piger Vib-7 of human intestine

Біологічні студії, 2014
Growth of Desulfovibrio piger Vib-7 bacteria of human intestine under the influence of the electron acceptor and donor in different concentrations and the parameters of dissimilatory sulfate reduction have been studied.
I. V. Kushkevych
doaj   +3 more sources

Thermophilic and mesophilic sulfate reduction by rare biosphere bacteria in acidic metal-bearing mine wastes from the temperate climate zone [PDF]

Scientific Reports
Dissimilatory sulfate reduction is the main microbial process that detoxifies metals and increases pH in acid mine drainage. Acidophilic, copper-resistant Desulfosporosinus sp. BG and Desulfosporosinus sp.
Olga V. Karnachuk, Inna A. Panova, Igor I. Rusanov, Marat R. Avakyan, Anastasia P. Lukina, Olga P. Ikkert, Nurai Kijar, Vitaly V. Kadnikov, Alexey V. Beletsky, Erzhena V. Danilova, Dmitry S. Kopitsyn, Nikolay V. Pimenov, Viktoria A. Shcherbakova, Nikolai V. Ravin   +13 more
doaj   +2 more sources

Dissimilatory arsenate and sulfate reduction in Desulfotomaculum auripigmentum sp. nov.

Archives of Microbiology, 1997
A newly discovered arsenate-reducing bacterium, strain OREX-4, differed significantly from strains MIT-13 and SES-3, the previously described arsenate-reducing isolates, which grew on nitrate but not on sulfate. In contrast, strain OREX-4 did not respire nitrate but grew on lactate, with either arsenate or sulfate serving as the electron acceptor, and ...
Newman, Dianne K., Kennedy, Erin K., Coates, John D., Ahmann, Dianne, Ellis, Debra J., Lovley, Derek R., Morel, François M. M.   +6 more
openaire   +4 more sources

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 ...
Røy, Hans; id_orcid 0000-0002-6477-3091, Weber, Hannah, Tarpgaard, Irene Harder, Ferdelmann, T. G., Jørgensen, Bo Barker; id_orcid 0000-0001-9398-8027   +4 more
openaire   +5 more sources

Zero-valent sulfur is the product of assimilatory sulfite reductase and a substrate of cysteine synthase [PDF]

Applied and Environmental Microbiology
The process of the assimilatory sulfate reduction consists of sulfate reduction to hydrogen sulfide (H2S) and then H2S assimilation for cysteine synthesis.
Qun Cao, Xuanyu Liu, Qingda Wang, Yongzhen Xia, Luying Xun, Huaiwei Liu   +5 more
doaj   +2 more sources

Dissimilatory sulfate reduction in bacteria Desulfovibrio desulfuricans ІМV К-6 upon influence of Uragan and Raundup herbicides

Regulatory Mechanisms in Biosystems, 2015
Objects of the study were sulfate-reducing bacteria Desulfovibrio desulfuricans ІМV К-6, isolated from Yavorivske lakе. This strain is kept in the collection of microorganisms at the Department of Microbiology of Ivan Franko National University. Bacteria
G. І. Zvir, O. М. Moroz, S. O. Hnatush
doaj   +3 more sources

Reduction of chromium (VI) compounds by sulfate-reducing bacteria

Біологічні студії, 2010
Bacteria performing dissimilatory sulfate reduction were isolated from Yaziv sulfur deposit wells. 12 cultures were resistant to the presence of 1 mM Cr (VI) in the medium.
T. B. Peretyatko, S. P. Gudz
doaj   +2 more sources

Microbially mediated re-oxidation of sulfide during dissimilatory sulfate reduction by Desulfobacter latus

Geochimica et Cosmochimica Acta, 2011
Enzymatic reactions during dissimilatory sulfate reduction (DSR) are often treated as unidirectional with respect to dissolved sulfide. However, quantitative models describing kinetic sulfur isotope fractionations during DSR consider the individual enzymatic reactions as reversible (Rees, 1973).
Eckert, T., Brunner, B., Edwards, E., Wortmann, U.   +3 more
openaire   +3 more sources