Results 31 to 40 of about 471 (140)

Integration of nanoscale zero-valent iron and functional anaerobic bacteria for groundwater remediation: A review

Environment International, 2019
The technology of integrating nanoscale zero-valent iron (nZVI) and functional anaerobic bacteria has broad prospects for groundwater remediation. This review focuses on the interactions between nZVI and three kinds of functional anaerobic bacteria ...
Haoran Dong, Long Li, Yue Lu, Yujun Cheng, Yaoyao Wang, Qin Ning, Bin Wang, Lihua Zhang, Guangming Zeng   +8 more
doaj   +1 more source

Microbial Community Changes in a Chlorinated Solvents Polluted Aquifer Over the Field Scale Treatment With Poly-3-Hydroxybutyrate as Amendment

Frontiers in Microbiology, 2018
This study investigated the organohalide-respiring bacteria (OHRB) and the supporting microbial populations operating in a pilot scale plant employing poly-3-hydroxybutyrate (PHB), a biodegradable polymer produced by bacteria from waste streams, for the ...
Bruna Matturro, Lucia Pierro, Emanuela Frascadore, Marco Petrangeli Papini, Simona Rossetti   +4 more
doaj   +1 more source

Microbiology in sustainable remediation of contaminated sites [PDF]

Microbiology Australia, 2023
The release of chemicals that have negative human or environmental health impacts has been rife around the world for a century. Approaches to contaminated site remediation have evolved over this time to address environmental contamination.
Mike Manefield, Matthew Lee
doaj  

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

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

Reductive dechlorination of tetrachloroethene by a stepwise catalysis of different organohalide respiring bacteria and reductive dehalogenases [PDF]

Biodegradation, 2011
The enrichment culture SL2 dechlorinating tetrachloroethene (PCE) to ethene with strong trichloroethene (TCE) accumulation prior to cis-1,2-dichloroethene (cis-DCE) formation was analyzed for the presence of organohalide respiring bacteria and reductive dehalogenase genes (rdhA).
Maillard, Julien, Charnay, Marie-Paule, Regeard, Christophe, Rohrbach-Brandt, Emmanuelle, Rouzeau-Szynalski, Katia, Rossi, Pierre, Holliger, Christof   +6 more
openaire   +4 more sources

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

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

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