Results 41 to 50 of about 487 (138)

Abundance and diversity of organohalide-respiring bacteria in lake sediments across a geographical sulfur gradient [PDF]

FEMS Microbiology Ecology, 2013
Across the U.S. Upper Midwest, a natural geographical sulfate gradient exists in lakes. Sediment grab samples and cores were taken to explore whether this sulfur gradient impacted organohalide-respiring Chloroflexi in lake sediments. Putative organohalide-respiring Chloroflexi were detected in 67 of 68 samples by quantitative polymerase chain reaction.
McNamara, Patrick J, Crary, Benjamin B., Novak, Paige J., Krzmarzick, Mark J.   +3 more
openaire   +2 more sources

Impact of Ammonium on Syntrophic Organohalide-Respiring and Fermenting Microbial Communities

mSphere, 2016
Syntrophic interactions between organohalide-respiring and fermentative microorganisms are critical for effective bioremediation of halogenated compounds.
Anca G. Delgado, Devyn Fajardo-Williams, Kylie L. Kegerreis, Prathap Parameswaran, Rosa Krajmalnik-Brown   +4 more
doaj   +1 more source

Dehalococcoides mccartyi strain CBDB1 takes up protons from the cytoplasm to reductively dehalogenate organohalides indicating a new modus of proton motive force generation

Frontiers in Microbiology, 2023
Proton translocation across the cytoplasmic membrane is a vital process for all organisms. Dehalococcoides strains are strictly anaerobic organohalide respiring bacteria that lack quinones and cytochromes but express a large membrane-bound protein ...
Nadine Hellmold, Marie Eberwein, My Hanh Thi Phan, Steffen Kümmel, Oliver Einsle, Darja Deobald, Lorenz Adrian, Lorenz Adrian   +7 more
doaj   +1 more source

Linking NrfD/PsrC‐like architecture to energy conservation: Functional residues in the quinone reactive QrcABCD complex of sulfate‐reducing bacteria

Protein Science, Volume 35, Issue 5, May 2026.
Abstract The QrcABCD quinone reductase complex is an electrogenic complex present in sulfate‐reducing bacteria of the Desulfobacterota phylum. It operates as a cytochrome c3:menaquinone oxidoreductase involved in electron transfer from periplasmic hydrogen or formate oxidation to the menaquinone (MK) pool.
Gonçalo Manteigas, Teresa Catarino, João B. Vicente, Américo G. Duarte, Inês A. C. Pereira   +4 more
wiley   +1 more source

Inferring community dynamics of organohalide-respiring bacteria in chemostats by covariance ofrdhAgene abundance [PDF]

FEMS Microbiology Ecology, 2013
We have developed a novel approach to identifying and quantifying closely related organohalide-respiring bacteria. Our approach made use of the unique genomic associations of specific reductive dehalogenase subunit A encoding genes (rdhA) that exist in known strains of Dehalococcoides mccartyi and Desulfitobacterium and the distinguishing covariance ...
Ian P G, Marshall, Mohammad F, Azizian, Lewis, Semprini, Alfred M, Spormann   +3 more
openaire   +2 more sources

Dehalococcoides as a Potential Biomarker Evidence for Uncharacterized Organohalides in Environmental Samples

Frontiers in Microbiology, 2017
The massive production and improper disposal of organohalides resulted in worldwide contamination in soil and water. However, their environmental survey based on chromatographic methods was hindered by challenges in testing the extremely wide variety of ...
Qihong Lu, Ling Yu, Zhiwei Liang, Qingyun Yan, Zhili He, Tiangang Luan, Dawei Liang, Shanquan Wang, Shanquan Wang   +8 more
doaj   +1 more source

Detection of Organohalide-Respiring Enzyme Biomarkers at a Bioaugmented TCE-Contaminated Field Site

Frontiers in Microbiology, 2019
RNA-based biomarkers have been successfully detected at field sites undergoing in situ bioremediation, but the detection of expressed enzymes is a more direct way to prove activity for a particular biocatalytic process of interest since they provide ...
Gretchen L. W. Heavner, Cresten B. Mansfeldt, Michael J. Wilkins, Carrie D. Nicora, Garrett E. Debs, Elizabeth A. Edwards, Ruth E. Richardson   +6 more
doaj   +1 more source

Microbial Community Response of an Organohalide Respiring Enrichment Culture to Permanganate Oxidation. [PDF]

PLoS ONE, 2015
While in situ chemical oxidation is often used to remediate tetrachloroethene (PCE) contaminated locations, very little is known about its influence on microbial composition and organohalide respiration (OHR) activity.
Nora B Sutton, Siavash Atashgahi, Edoardo Saccenti, Tim Grotenhuis, Hauke Smidt, Huub H M Rijnaarts   +5 more
doaj   +1 more source

Metabolome patterns identify active dechlorination in bioaugmentation consortium SDC-9™

Frontiers in Microbiology, 2022
Ultra-high performance liquid chromatography–high-resolution mass spectrometry (UPHLC–HRMS) is used to discover and monitor single or sets of biomarkers informing about metabolic processes of interest.
Amanda L. May, Yongchao Xie, Fadime Kara Murdoch, Mandy M. Michalsen, Frank E. Löffler, Frank E. Löffler, Frank E. Löffler, Frank E. Löffler, Frank E. Löffler, Shawn R. Campagna, Shawn R. Campagna, Shawn R. Campagna   +11 more
doaj   +1 more source

Human Intestinal Microbiota Composition Shapes Model Polyfluoroalkyl Substance Biotransformation

ChemBioChem, Volume 27, Issue 5, 13 March 2026.
Differences in the human gut microbiome impact the rate and pathway of biotransformation for 6:2 polyfluoroalkyl phosphate diester (diPAP), a model polyfluoroalkyl substance. Metabolic analysis is coupled to 16S RNA analysis to identify correlations between microbial taxa abundance and PAP transformation products not previously established from ...
Sierra T. Peskett, Daniel S. Grégoire, Amy A. Rand   +2 more
wiley   +1 more source