Results 21 to 30 of about 51,211 (258)

Methyl-Coenzyme M Reductase and Its Post-translational Modifications

open access: yesFrontiers in Microbiology, 2020
The methyl-coenzyme M reductase (MCR) is a central enzyme in anaerobic microbial methane metabolism, which consists of methanogenesis and anaerobic oxidation of methane (AOM).
Hao Chen   +3 more
doaj   +1 more source

Anaerobic oxidation has a minor effect on mitigating seafloor methane emissions from gas hydrate dissociation

open access: yesCommunications Earth & Environment, 2022
Microbial anaerobic oxidation of methane may not substantially mitigate projected warming-induced emissions of methane from marine hydrate-bearing sediments, according to a coupled hydraulic-thermodynamic-geomechanical hydrate model.
Christian Stranne   +6 more
doaj   +1 more source

In situ benthic fluxes from an intermittently active mud volcano at the Costa Rica convergent margin [PDF]

open access: yes, 2005
Along the erosive convergent margin off Costa Rica a large number of mound-shaped structures exist built by mud diapirism or mud volcanism. One of these, Mound 12, an intermittently active mud volcano, currently emits large amounts of aqueous dissolved ...
Hensen, Christian   +4 more
core   +1 more source

Microbial chromate reduction coupled with anaerobic oxidation of methane in a membrane biofilm reactor

open access: yesEnvironment International, 2019
It has been reported that microbial reduction of sulfate, nitrite/nitrate and iron/manganese could be coupled with anaerobic oxidation of methane (AOM), which plays a significant role in controlling methane emission from anoxic niches. However, little is
Jing-Huan Luo   +5 more
doaj   +1 more source

Chemotrophic Microbial Mats and Their Potential for Preservation in the Rock Record [PDF]

open access: yes, 2009
Putative microbialites are commonly regarded to have formed in association with photosynthetic microorganisms, such as cyanobacteria. However, many modern microbial mat ecosystems are dominated by chemotrophic bacteria and archaea.
Bailey, Jake V.   +3 more
core   +1 more source

Artificial electron acceptors decouple archaeal methane oxidation from sulfate reduction [PDF]

open access: yes, 2016
The oxidation of methane with sulfate is an important microbial metabolism in the global carbon cycle. In marine methane seeps, this process is mediated by consortia of anaerobic methanotrophic archaea (ANME) that live in syntrophy with sulfate-reducing ...
Chadwick, Grayson L.   +4 more
core   +1 more source

Anaerobic Oxidization of Methane in a Minerotrophic Peatland: Enrichment of Nitrite-Dependent Methane-Oxidizing Bacteria [PDF]

open access: yesApplied and Environmental Microbiology, 2012
ABSTRACT The importance of anaerobic oxidation of methane (AOM) as a methane sink in freshwater systems is largely unexplored, particularly in peat ecosystems. Nitrite-dependent anaerobic methane oxidation (n-damo) was recently discovered and reported to be catalyzed by the bacterium “ Candidatus ...
Zhu, B.L.   +7 more
openaire   +3 more sources

Enzymes involved in the anaerobic oxidation of n-alkanes: from methane to long-chain paraffins

open access: yesFrontiers in Microbiology, 2013
Anaerobic microorganisms play key roles in the biogeochemical cycling of methane and non-methane alkanes. To date, there appear to be at least three proposed mechanisms of anaerobic methane oxidation (AOM). The first pathway is mediated by consortia of
Amy V. Callaghan
doaj   +1 more source

Different impacts of an electron shuttle on nitrate- and nitrite-dependent anaerobic oxidation of methane in paddy soil

open access: yesPlant, Soil and Environment, 2021
Quinones, redox-active functional groups in soil organic matter, can act as electron shuttles for microbial anaerobic transformation. Here, we used 13CH4 to trace 13C conversion (13C-CO2 + 13C-SOC) to investigate the influence of an artificial electron ...
Yaohong Zhang, Fangyuan Wang
doaj   +1 more source

Alpha- and Gammaproteobacterial Methanotrophs Codominate the Active Methane-Oxidizing Communities in an Acidic Boreal Peat Bog [PDF]

open access: yes, 2016
The objective of this study was to characterize metabolically active, aerobic methanotrophs in an ombrotrophic peatland in the Marcell Experimental Forest, Minnesota, USA.
Chanton, Jeffrey P.   +5 more
core   +1 more source

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