Results 41 to 50 of about 41,105 (250)

Vertical profiles of sediment methanogenic potential and communities in two plateau freshwater lakes [PDF]

open access: yesBiogeosciences, 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

Quantitative analysis of ruminal methanogenic microbial populations in beef cattle divergent in phenotypic residual feed intake (RFI) offered contrasting diets [PDF]

open access: yes, 2014
peer-reviewedBackground Methane (CH4) emissions in cattle are an undesirable end product of rumen methanogenic fermentative activity as they are associated not only with negative environmental impacts but also with reduced host feed ...
Carberry, Ciara A   +3 more
core   +2 more sources

Mer overexpression in Methanosarcina acetivorans affects growth and methanogenesis during substrate adaptation

open access: yesApplied and Environmental Microbiology
Evidence 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

Shifts in metabolic hydrogen sinks in the methanogenesis-inhibited ruminal fermentation: a meta-analysis

open access: yesFrontiers 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

Review: Biological consequences of the inhibition of rumen methanogenesis

open access: yesAnimal
Decreasing enteric CH4 emissions from ruminants is important for containing global warming to 1.5 °C and avoid the worst consequences of climate change.
E.M. Ungerfeld, D. Pitta
doaj   +1 more source

Plane of nutrition affects the phylogenetic diversity and relative abundance of transcriptionally active methanogens in the bovine rumen [PDF]

open access: yes, 2017
peer-reviewedMethane generated during enteric fermentation in ruminant livestock species is a major contributor to global anthropogenic greenhouse gas emissions.
Cormican, Paul   +7 more
core   +4 more sources

H2-Independent Growth of the Hydrogenotrophic Methanogen Methanococcus maripaludis

open access: yesmBio, 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

Archaeal abundance in post-mortem ruminal digesta may help predict methane emissions from beef cattle [PDF]

open access: yes, 2014
The Rowett Institute of Nutrition and Health and SRUC are funded by the Rural and Environment Science and Analytical Services Division (RESAS) of the Scottish Government.
Duthie, Carol-Anne   +9 more
core   +3 more sources

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

open access: yesAngewandte Chemie International Edition, EarlyView.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol   +4 more
wiley   +1 more source

Timescales for the development of methanogenesis and free gas layers in recently-deposited sediments of Arkona Basin (Baltic Sea) [PDF]

open access: yes, 2012
Arkona Basin (southwestern Baltic Sea) is a seasonally-hypoxic basin characterized by the presence of free methane gas in its youngest organic-rich muddy stratum.
Dale, Andy W.   +3 more
core  

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