Results 51 to 60 of about 57,477 (284)

Planktonic and sediment-associated aerobic methanotrophs in two seep systems along the North American margin [PDF]

open access: yes, 2008
Methane vents are of significant geochemical and ecological importance. Notable progress has been made towards understanding anaerobic methane oxidation in marine sediments, however, the diversity and distribution of aerobic methanotrophs in the water ...
Orphan, Victoria J.   +2 more
core   +4 more sources

Assessing connectivity between an overlying aquifer and a coal seam gas resource using methane isotopes, dissolved organic carbon and tritium [PDF]

open access: yes, 2015
Coal seam gas (CSG) production can have an impact on groundwater quality and quantity in adjacent or overlying aquifers. To assess this impact we need to determine the background groundwater chemistry and to map geological pathways of hydraulic ...
A Green-Saxena   +31 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

Sulfide Toxicity as Key Control on Anaerobic Oxidation of Methane in Eutrophic Coastal Sediments

open access: yesbioRxiv, 2022
Coastal zones account for significant global marine methane emissions to the atmosphere. In coastal ecosystems, the tight balance between microbial methane production and oxidation in sediments prevents most methane from escaping to the water column ...
P. Martins   +9 more
semanticscholar   +1 more source

Relating Anaerobic Digestion Microbial Community and Process Function [PDF]

open access: yes, 2016
Anaerobic digestion (AD) involves a consortium of microorganisms that convert substrates into biogas containing methane for renewable energy. The technology has suffered from the perception of being periodically unstable due to limited understanding of ...
Bocher, Benjamin T.W.   +3 more
core   +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

Microbial degradation of dimethylsulphide and related C1-sulphur compounds: organisms and pathways controlling fluxes of sulphur in the biosphere [PDF]

open access: yes, 2010
Dimethylsulphide (DMS) plays a major role in the global sulphur cycle. It has important implications for atmospheric chemistry, climate regulation, and sulphur transport from the marine to the atmospheric and terrestrial environments.
Boden, Rich   +2 more
core   +1 more source

A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments

open access: yesBMC Microbiology, 2011
Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA   +4 more
doaj   +1 more source

Methane-yielding microbial communities processing lactate-rich substrates: a piece of the anaerobic digestion puzzle

open access: yesBiotechnology for Biofuels, 2018
Background Anaerobic digestion, whose final products are methane and carbon dioxide, ensures energy flow and circulation of matter in ecosystems. This naturally occurring process is used for the production of renewable energy from biomass.
Anna Detman   +9 more
doaj   +1 more source

Nitrate-Dependent Iron Oxidation: A Potential Mars Metabolism [PDF]

open access: yes, 2018
This work considers the hypothetical viability of microbial nitrate-dependent Fe2+ oxidation (NDFO) for supporting simple life in the context of the early Mars environment.
Abramov   +185 more
core   +4 more sources

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