Results 71 to 80 of about 489 (144)

Identification of two organohalide-respiring Dehalococcoidia associated to different dechlorination activities in PCB-impacted marine sediments

Microbial Cell Factories, 2017
Background Microbial reductive dechlorination of polychlorinated biphenyls (PCBs) plays a major role in detoxifying anoxic contaminated freshwater and marine sediments from PCBs.
Andrea Nuzzo, Andrea Negroni, Giulio Zanaroli, Fabio Fava   +3 more
doaj   +1 more source

The Membrane-Bound C Subunit of Reductive Dehalogenases: Topology Analysis and Reconstitution of the FMN-Binding Domain of PceC

Frontiers in Microbiology, 2018
Organohalide respiration (OHR) is the energy metabolism of anaerobic bacteria able to use halogenated organic compounds as terminal electron acceptors.
Géraldine F. Buttet, Mathilde S. Willemin, Romain Hamelin, Aamani Rupakula, Julien Maillard   +4 more
doaj   +1 more source

Chlorine Isotope Effects from Isotope Ratio Mass Spectrometry Suggest Intramolecular C-Cl Bond Competition in Trichloroethene (TCE) Reductive Dehalogenation

Molecules, 2014
Chlorinated ethenes are prevalent groundwater contaminants. To better constrain (bio)chemical reaction mechanisms of reductive dechlorination, the position-specificity of reductive trichloroethene (TCE) dehalogenation was investigated.
Stefan Cretnik, Anat Bernstein, Orfan Shouakar-Stash, Frank Löffler, Martin Elsner   +4 more
doaj   +1 more source

Diversity of reductive dehalogenase genes from environmental samples and enrichment cultures identified with degenerate primer PCR screens.

Frontiers in Microbiology, 2013
Reductive dehalogenases are the critical enzymes for anaerobic organohalide respiration, a microbial metabolic process that has been harnessed for bioremediation efforts to resolve chlorinated solvent contamination in groundwater and is implicated in the
Laura Audrey Hug, Elizabeth Anne Edwards, Elizabeth Anne Edwards   +2 more
doaj   +1 more source

Kinetics and Threshold Level of 2,3,4,5-Tetrachlorobiphenyl Dechlorination by an Organohalide Respiring Bacterium

Environmental Science & Technology, 2014
The time required for a PCB-contaminated site to recover cannot yet be predicted due in part to lack of quantitative information on rates of PCB dechlorination in the porewater phase. We developed a method to measure rate of dechlorination in the aqueous phase at very low PCB concentrations.
Lombard, Nathalie J., Ghosh, Upal, Kjellerup, Birthe V., Sowers, Kevin R.   +3 more
openaire   +2 more sources

Substrate-dependent competition and cooperation relationships between Geobacter and Dehalococcoides for their organohalide respiration. [PDF]

ISME Commun, 2021
Liang Y, Lu Q, Liang Z, Liu X, Fang W, Liang D, Kuang J, Qiu R, He Z, Wang S.   +9 more
europepmc   +1 more source

Validation of an integrative methodology to assess and monitor reductive dechlorination of chlorinated ethenes in contaminated aquifers

Frontiers in Environmental Science, 2016
Bioremediation of tetra-and trichloroethene-contaminated aquifers is frequently hampered due to incomplete dechlorination to the more toxic dichloroethene (DCE) and vinyl chloride (VC), indicating insufficient knowledge about the biological mechanisms ...
Sonia-Estelle eTarnawski, Pierre eRossi, Maria V. Brennerova, Monika eStavelova, Christof eHolliger   +4 more
doaj   +1 more source

RNA-Dependent Cysteine Biosynthesis in Bacteria and Archaea

mBio, 2017
The diversity of the genetic code systems used by microbes on earth is yet to be elucidated. It is known that certain methanogenic archaea employ an alternative system for cysteine (Cys) biosynthesis and encoding; tRNACys is first acylated with ...
Takahito Mukai, Ana Crnković, Takuya Umehara, Natalia N. Ivanova, Nikos C. Kyrpides, Dieter Söll   +5 more
doaj   +1 more source

Ecophysiology and environmental distribution of organohalide-respiring bacteria

, 2016
Organohalide-respiring bacteria (OHRB) are able to breathe natural and anthropogenically produced organohalides persistent in a broad range of oxygen-depleted environments. Therefore, these microorganisms are of high interest for organohalide-contaminated site bioremediation and natural halogen and carbon cycle.
openaire   +2 more sources

Corrigendum: Diversity of reductive dehalogenase genes from environmental samples and enrichment cultures identified with degenerate primer PCR screens

Frontiers in Microbiology, 2015
Laura Audrey Hug, Elizabeth Anne Edwards
doaj   +1 more source