Results 31 to 40 of about 12,578 (193)

Influence of Phosphorus and Cell Geometry on the Fractionation of Sulfur Isotopes by Several Species of Desulfovibrio during Microbial Sulfate Reduction

Frontiers in Microbiology, 2017
We investigated the influence of organic substrates and phosphate concentration on the rates of dissimilatory microbial sulfate reduction and the 34S/32S isotopic fractionation produced by several Desulfovibrio species.
Shikma Zaarur, David T. Wang, Shuhei Ono, Tanja Bosak   +3 more
doaj   +1 more source

Disguised as a Sulfate Reducer: Growth of the Deltaproteobacterium Desulfurivibrio alkaliphilus by Sulfide Oxidation with Nitrate

mBio, 2017
This study demonstrates that the deltaproteobacterium Desulfurivibrio alkaliphilus can grow chemolithotrophically by coupling sulfide oxidation to the dissimilatory reduction of nitrate and nitrite to ammonium.
Casper Thorup, Andreas Schramm, Alyssa J. Findlay, Kai W. Finster, Lars Schreiber   +4 more
doaj   +1 more source

Biogeochemical dynamics and microbial community development under sulfate- and iron-reducing conditions based on electron shuttle amendment.

PLoS ONE, 2021
Iron reduction and sulfate reduction are two of the major biogeochemical processes that occur in anoxic sediments. Microbes that catalyze these reactions are therefore some of the most abundant organisms in the subsurface, and some of the most important.
Theodore M Flynn, Dionysios A Antonopoulos, Kelly A Skinner, Jennifer M Brulc, Eric Johnston, Maxim I Boyanov, Man Jae Kwon, Kenneth M Kemner, Edward J O'Loughlin   +8 more
doaj   +1 more source

Reduction of Sb(V) by coupled biotic-abiotic processes under sulfidogenic conditions

Heliyon, 2021
Increasing use and mining of antimony (Sb) has resulted in greater concern involving its fate and transport in the environment. Antimony(V) and (III) are the two most environmentally relevant oxidation states, but little is known about the redox ...
Clayton R. Johnson, Dionysios A. Antonopoulos, Maxim I. Boyanov, Theodore M. Flynn, Jason C. Koval, Kenneth M. Kemner, Edward J. O'Loughlin   +6 more
doaj   +1 more source

TEST-SYSTEMS FOR MONITORING OF CORROSION-RELEVANT SULFATE-REDUCING BACTERIA USING REAL-TIME PCR ASSAY [PDF]

Biotechnologia Acta, 2016
The possibility of the designing test-systems for specific detection of corrosive-relevant sulfate-reducing bacteria using real-time PCR assay were investigated. This method of the bacteria identification is based on the detection of the functional genes,
D. R. , L. М. , G. А. , М. М. , A. G.   +4 more
doaj   +1 more source

Unraveling the metabolic pathway of dissimilatory sulfate reduction [PDF]

, 2023
"Sulfate-reducers are anaerobic organisms from the Bacteria and Archaea domains of life, which are able to use a wide variety of electron donors and couple them with the reduction of sulfur molecules to hydrogen sulfide.
Ferreira, Delfim
core  

Microbial sulfur transformations in sediments from Subglacial Lake Whillans

Frontiers in Microbiology, 2014
Diverse microbial assemblages inhabit subglacial aquatic environments. While few of these environments have been sampled, data reveal that subglacial organisms gain energy for growth from reduced minerals containing nitrogen, iron, and sulfur.
Alicia M Purcell, Jill A Mikucki, Amanda eAchberger, Irina eAlekhina, Carlo eBarbante, Brent Craig Christner, Dhritiman eGhosh, Alexander B Michaud, Andrew C Mitchell, John C Priscu, Reed eScherer, Mark eSkidmore, Trista J Vick-Majors, The WISSARD eScience Team   +13 more
doaj   +1 more source

Microbial Community Structure and Functions in Ethanol-Fed Sulfate Removal Bioreactors for Treatment of Mine Water

Microorganisms, 2017
Sulfate-rich mine water must be treated before it is released into natural water bodies. We tested ethanol as substrate in bioreactors designed for biological sulfate removal from mine water containing up to 9 g L−1 sulfate, using granular sludge from an
Malin Bomberg, Jarno Mäkinen, Marja Salo, Mona Arnold   +3 more
doaj   +1 more source

SQUID-SIMS is a useful approach to uncover primary signals in the Archean sulfur cycle [PDF]

, 2014
The Agouron Institute and National Aeronautic and Space Administration Exobiology Award NNX09AM91G supported this work.Many aspects of Earth's early sulfur cycle, from the origin of mass-anomalous fractionations to the degree of biological participation,
Guan, Yunbin, Woodward W. Fischer, Fike, David A., Fike, David A, Jena E. Johnson, Raub, Timothy D, David A. Fike, Fischer, Woodward W., Johnson, Jena E, Eiler, John M, Timothy D. Raub, Raub, Timothy D., Yunbin Guan, Kirschvink, Joseph L., Johnson, Jane E., Joseph L. Kirschvink, John M. Eiler, Fischer, Woodward W, Kirschvink, Joseph L, Eiler, John M.   +19 more
core   +1 more source

An intertwined evolutionary history of methanogenic archaea and sulfate reduction. [PDF]

PLoS ONE, 2012
Hydrogenotrophic methanogenesis and dissimilatory sulfate reduction, two of the oldest energy conserving respiratory systems on Earth, apparently could not have evolved in the same host, as sulfite, an intermediate of sulfate reduction, inhibits ...
Dwi Susanti, Biswarup Mukhopadhyay
doaj   +1 more source