Results 21 to 30 of about 78 (73)

Cobamide-mediated enzymatic reductive dehalogenation via long-range electron transfer

Nature Communications, 2017
Cobalamin-containing reductive dehalogenases from organohalide-respiring bacteria play a key role in the degradation of halogenated organic compounds. Here the authors proposed a catalytic mechanism for dehalogenation that relies on a long-range electron
Cindy Kunze, Martin Bommer, Wilfred R. Hagen, Marie Uksa, Holger Dobbek, Torsten Schubert, Gabriele Diekert   +6 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

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

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

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

Increasing in situ bioremediation effectiveness through field-scale application of molecular biological tools

Frontiers in Microbiology, 2023
Leveraging the capabilities of microorganisms to reduce (degrade or transform) concentrations of pollutants in soil and groundwater can be a cost-effective, natural remedial approach to manage contaminated sites.
Andrew S. Madison, Skyler J. Sorsby, Yingnan Wang, Trent A. Key   +3 more
doaj   +1 more source

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

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

Effect of Moderate Heat on TCE Reductive Dechlorination Rates in Groundwater

Groundwater Monitoring &Remediation, Volume 46, Issue 2, Page 44-54, Spring 2026.
Abstract Low‐temperature heating (in the mesophilic range of ~15 to 40 °C) of contaminated aquifers offers the prospect of increasing the rates for biotic and abiotic treatment of volatile organic compounds. Thermal In Situ Sustainable Remediation (TISR®) is one of the approaches available to implement low temperature heating.
David L. Freedman, Nicholas Cotter, Craig Divine, Shandra Justicia‐Leone   +3 more
wiley   +1 more source