Results 141 to 150 of about 1,164 (160)

The DsrD functional marker protein is an allosteric activator of the DsrAB dissimilatory sulfite reductase [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2022
Significance Metagenomic data have recently transformed our view of the role played by sulfur metabolism in anoxic environments by showing that this trait is much more widespread than previously believed. A key enzyme in sulfur metabolism is the dissimilatory sulfite reductase DsrAB that is ubiquitous in organisms with a ...
Delfim Ferreira, Ana C C Barbosa, TERESA Catarino   +2 more
exaly   +5 more sources

Phylogenetic and environmental diversity of DsrAB-type dissimilatory (bi)sulfite reductases [PDF]

ISME Journal, 2014
AbstractThe energy metabolism of essential microbial guilds in the biogeochemical sulfur cycle is based on a DsrAB-type dissimilatory (bi)sulfite reductase that either catalyzes the reduction of sulfite to sulfide during anaerobic respiration of sulfate, sulfite and organosulfonates, or acts in reverse during sulfur oxidation.
Kasper Urup Kjeldsen, Thomas Rattei, Michael Pester   +2 more
exaly   +7 more sources

Molecular quantification of sulfate-reducing microorganisms (carrying dsrAB genes) by competitive PCR in estuarine sediments [PDF]

FEMS Microbiology Ecology, 2004
In this study, we describe a competitive polymerase chain reaction (PCR) for the quantification of the sequences of dsrAB in sulfate-reducing microorganisms. We used the dsr1F/dsr4R set of primers, previously designed by Wagner et al. (1998), and a competitor sequence was constructed from the dsrAB genes of Desulfovibrio vulgaris.
Julie Leloup, Laurent Quillet, Fabienne Petit   +2 more
exaly   +4 more sources

Diversity and distribution of sulfate-reducing bacteria in four petroleum reservoirs detected by using 16S rRNA and dsrAB genes

International Biodeterioration and Biodegradation, 2013
Abstract Microbial sulfate reduction, an important metabolic process in petroleum reservoirs, is widely known as a major contributor to microbial influenced corrosion and deterioration of oil quality. To better control oil field corrosion and oil degradation caused by the sulfate-reducing bacteria (SRBs), the community structure and composition of ...
Jin-Feng Liu, Ji-Dong Gu, Bo-Zhong Mu
exaly   +5 more sources

Molecular Analysis of the Sulfate Reducing and ArchaealCommunity in a Meromictic Soda Lake (Mono Lake, California) by Targeting 16S rRNA, mcrA, apsA, and dsrAB Genes

Microbial Ecology, 2005
Sulfate reduction is the most important process involved in the mineralization of carbon in the anoxic bottom waters of Mono Lake, an alkaline, hypersaline, meromictic Lake in California. Another important biogeochemical process in Mono Lake is thought to be sulfate-dependent methane oxidation (SDMO).
Samantha B Joye, J Colin Murrell
exaly   +4 more sources

Diversity of the dsrAB (dissimilatory sulfite reductase) gene sequences retrieved from two contrasting mudflats of the Seine estuary, France [PDF]

FEMS Microbiology Ecology, 2006
The diversity of sulfate-reducing microorganisms was investigated in two contrasting mudflats of the Seine estuary, by PCR amplification, cloning and sequencing of the genes coding for parts of the alpha and beta subunits of dissimilatory sulfite reductase (dsrAB).
Julie Leloup, Laurent Quillet, Thierry Berthe   +2 more
exaly   +4 more sources

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Molecular characterization of sulfate-reducing bacteria in anaerobic hydrocarbon-degrading consortia and pure cultures using the dissimilatory sulfite reductase (dsrAB) genes

FEMS Microbiology Ecology, 2001
The characterization of sulfate-reducing bacteria (SRBs) is presented using the dissimilatory sulfite reductase (dsrAB) gene from various samples capable of mineralizing petroleum components. These samples include several novel, sulfidogenic pure cultures which degrade alkanes, toluene, and tribromophenol.
L Y Young, Lee J Kerkhof
exaly   +4 more sources

Purification, crystallization and preliminary crystallographic analysis of a dissimilatory DsrAB sulfite reductase in complex with DsrC

Journal of Structural Biology, 2008
Dissimilatory sulfite reductase (dSiR, DsrAB) is a key protein in dissimilatory sulfur metabolism, one of the earliest types of energy metabolism to be traced on earth. dSirs are large oligomeric proteins around 200kDa forming an alpha(2)beta(2) arrangement and including a unique siroheme-[4Fe-4S] coupled cofactor.
Pedro M Matias, Sofia S Venceslau, Inés A C Pereira   +2 more
exaly   +3 more sources

dsrAB-based analysis of sulphate-reducing bacteria in moving bed biofilm reactor (MBBR) wastewater treatment plants

Applied Microbiology and Biotechnology, 2014
Sulphate-reducing bacteria (SRB) are important members of the sulphur cycle in wastewater treatment plants (WWTPs). In this study, we investigate the diversity and activity of SRB within the developing and established biofilm of two moving bed biofilm reactor (MBBR) systems treating municipal wastewater in New Zealand.
Kristi Biswas, Michael W Taylor, Susan J Turner   +2 more
exaly   +3 more sources

Dynamics of Sulfate-Reducing Microorganisms (dsrAB genes) in Two Contrasting Mudflats of the Seine Estuary (France)

Microbial Ecology, 2005
By combining molecular biology and biochemical approaches, the dynamics of sulfate-reducing microorganisms (SRM) was investigated in the sediments of the Seine estuary (France). Both intertidal mixing-zone and freshwater mudflats were sampled during a 1-year period; the quantification of SRM was realized by using competitive polymerase chain reaction ...
Julie Leloup, Fabienne Petit
exaly   +4 more sources