Results 61 to 70 of about 1,236 (207)

Enumeration of Organohalide Respirers in Municipal Wastewater Anaerobic Digesters [PDF]

open access: yesMicrobiology Insights, 2015
Organohalide contaminants such as triclosan and triclocarban have been well documented in municipal wastewater treatment plants (WWTPs), but the degradation of these contaminants is not well understood. One possible removal mechanism is organohalide respiration by which bacteria reduce the halogenated compound.
Smith, Bryan JK   +5 more
openaire   +2 more sources

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol [PDF]

open access: yes, 2016
Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated
Abelson   +97 more
core   +2 more sources

Cofactor Selectivity in Methylmalonyl Coenzyme A Mutase, a Model Cobamide-Dependent Enzyme. [PDF]

open access: yes, 2019
Cobamides, a uniquely diverse family of enzyme cofactors related to vitamin B12, are produced exclusively by bacteria and archaea but used in all domains of life.
Mok, Kenny   +5 more
core   +1 more source

Presence, Diversity, and Enrichment of Respiratory Reductive Dehalogenase and Non-respiratory Hydrolytic and Oxidative Dehalogenase Genes in Terrestrial Environments

open access: yesFrontiers in Microbiology, 2019
Organohalide-respiring bacteria have been linked to the cycling and possible respiration of chlorinated natural organic matter (Cl-NOM) in uncontaminated soils and sediments. The importance of non-respiratory hydrolytic/oxidative dechlorination processes
Hanna R. Temme   +2 more
doaj   +1 more source

Polyhydroxyalkanoate as a slow-release carbon source for in situ bioremediation of contaminated aquifers: from laboratory investigation to pilot-scale testing in the field [PDF]

open access: yes, 2016
A pilot-scale study aiming to evaluate the potential use of poly-3-hydroxy-butyrate (PHB) as an electron donor source for in situ bioremediation of chlorinated hydrocarbons in groundwater was conducted.
Alesi, Eduard   +8 more
core   +1 more source

Electrochemical characterization of Geobacter lovleyi identifies limitations of microbial fuel cell performance in constructed wetlands [PDF]

open access: yes, 2017
Microbial Fuel Cells implemented in Constructed Wetlands (CW-MFCs) show limited performance. Geobacter Lovleyi has been demonstrated to be one of the predominant bacterial species in active CW-MFCs. The aim of this study was to characterize the growth of
Corbella Vidal, Clara   +3 more
core   +6 more sources

Catabolic Reductive Dehalogenase Substrate Complex Structures Underpin Rational Repurposing of Substrate Scope

open access: yesMicroorganisms, 2020
Reductive dehalogenases are responsible for the reductive cleavage of carbon-halogen bonds during organohalide respiration. A variety of mechanisms have been proposed for these cobalamin and [4Fe-4S] containing enzymes, including organocobalt, radical ...
Tom Halliwell   +4 more
doaj   +1 more source

Microbial respiration with chlorine oxyanions: diversity and physiological and biochemical properties of chlorate- and perchlorate-reducing microorganisms [PDF]

open access: yes, 2016
Chlorine oxyanions are valuable electron acceptors for microorganisms. Recent findings have shed light on the natural formation of chlorine oxyanions in the environment. These suggest a permanent introduction of respective compounds on Earth, long before
Achenbach   +103 more
core   +1 more source

Organohalide-Respiring Deltaproteobacteria

open access: yes, 2016
Organohalide respiration was first discovered in the deltaproteobacterium Desulfomonile tiedjei, which used 3-chlorobenzoate as the respiratory electron acceptor. Since this breakthrough discovery, the organohalide-respiring phenotype was demonstrated in 6 out of the 21 currently published families of the class Deltaproteobacteria.
Robert A. Sanford   +2 more
openaire   +3 more sources

Importance of the Active Site "Canopy" Residues in an O_2-Tolerant [NiFe]-Hydrogenase [PDF]

open access: yes, 2016
The active site of Hyd-1, an oxygen-tolerant membrane-bound [NiFe]-hydrogenase from Escherichia coli, contains four highly conserved residues that form a “canopy” above the bimetallic center, closest to the site at which exogenous agents CO and O_2 ...
Armstrong, Fraser A.   +7 more
core   +2 more sources

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