Results 41 to 50 of about 20,145 (235)
Vertical profiles of sediment methanogenic potential and communities in two plateau freshwater lakes [PDF]
Biogeosciences, 2017 Microbial methanogenesis in sediment plays a crucial role in CH4 emission from freshwater lake ecosystems. However, knowledge of the layer-depth-related changes of methanogen community structure and activities in freshwater lake sediment is still limited.
Y. Yang +5 more
doaj +1 more source
Direct inhibition of methanogenesis by ferric iron [PDF]
, 2004 Observed inhibition of methanogenesis under Fe(III)-reducing conditions is usually explained by competition of methanogens and Fe(III)-reducing bacteria for the common Substrates acetate and hydrogen.
van Bodegom, P.M. +3 more
core +1 more source
Applied and Environmental MicrobiologyEvidence suggests that multienzyme complexes are involved in biological methane production (methanogenesis), although the composition of the Wolfe Cycle methanogenesis complexes may vary between diverse methanoarchaeal taxa ...
Darla Brennan +4 more
doaj +1 more source
Frontiers in Microbiology, 2015 Maximizing the flow of metabolic hydrogen ([H]) in the rumen away from CH4 and towards volatile fatty acids (VFA) would increase the efficiency of ruminant production and decrease its environmental impact. The objectives of this meta-analysis were: i) To
Emilio M. Ungerfeld
doaj +1 more source
Humic acid inhibition of hydrolysis and methanogenesis with different anaerobic inocula [PDF]
, 2018 There is increasing evidence that humic acid (HA) is hampering the performance of anaerobic digesters treating animal manures and thermally-hydrolysed waste activated sludge.
Batstone, Damien J. +13 more
core +1 more source
Hydrogenotrophic methanogenesis in archaeal phylum Verstraetearchaeota reveals the shared ancestry of all methanogens [PDF]
, 2020 Methanogenic archaea are major contributors to the global carbon cycle and were long thought to belong exclusively to the euryarchaeal phylum. Discovery of the methanogenesis gene cluster methylcoenzyme M reductase (Mcr) in the Bathyarchaeota, and ...
Blainey, Paul C
core +4 more sources
Selenocysteine, pyrrolysine and the unique energy metabolism of methanogenic archaea [PDF]
, 2010 Methanogenic archaea are a group of strictly anaerobic microorganisms characterized by their strict dependence on the process of methanogenesis for energy conservation.
Rother, Michael +3 more
core +1 more source
Copper(II/III) Redox Couple Enables C─H Methylation via a Radical Mechanism Analogous to SAM Enzymes
Angewandte Chemie International Edition, EarlyView.Biological C–H methylation proceeds through radical pathways mediated by one‐electron redox cofactors, yet no synthetic model has reproduced this reactivity. Here, we report the first isolable Cu(II/III)–methyl complexes that mediate C–H methylation through hydrogen atom transfer and methyl radical rebound.
Emily N. Doss +2 more
wiley +1 more source
Methylotrophic methanogenesis and potential methylated substrates in marine sediment [PDF]
, 2014 Methane is the simplest hydrocarbon and a potent greenhouse gas that plays important roles in atmospheric chemistry, the global carbon cycle, and the formation of gas hydrates in marine sediment.
Zhuang, Guangchao
core
H2-Independent Growth of the Hydrogenotrophic Methanogen
mBio, 2013 Hydrogenotrophic methanogenic Archaea require reduced ferredoxin as an anaplerotic source of electrons for methanogenesis. H2 oxidation by the hydrogenase Eha provides these electrons, consistent with an H2 requirement for growth.
Kyle C. Costa +3 more
doaj +1 more source