Results 11 to 20 of about 12,429 (188)

Electron Bifurcation and Confurcation in Methanogenesis and Reverse Methanogenesis [PDF]

open access: yesFrontiers in Microbiology, 2018
Reduction of the disulfide of coenzyme M and coenzyme B (CoMS–SCoB) by heterodisulfide reductases (HdrED and HdrABC) is the final step in all methanogenic pathways. Flavin-based electron bifurcation (FBEB) by soluble HdrABC homologs play additional roles
Zhen Yan, James G. Ferry
doaj   +3 more sources

Methanogenesis [PDF]

open access: yesCurrent Biology, 2018
Methanogenesis is an anaerobic respiration that generates methane as the final product of metabolism. In aerobic respiration, organic matter such as glucose is oxidized to CO2, and O2 is reduced to H2O. In contrast, during hydrogenotrophic methanogenesis, H2 is oxidized to H+, and CO2 is reduced to CH4.
Zhe, Lyu   +3 more
openaire   +2 more sources

Opportunities and Hurdles to the Adoption and Enhanced Efficacy of Feed Additives towards Pronounced Mitigation of Enteric Methane Emissions from Ruminant Livestock

open access: yesMethane, 2022
This paper analyzes the mitigation of enteric methane (CH4) emissions from ruminants with the use of feed additives inhibiting rumen methanogenesis to limit the global temperature increase to 1.5 °C.
Emilio M. Ungerfeld
doaj   +1 more source

Resilience and functional redundancy of methanogenic digestion microbiome safeguard recovery of methanogenesis activity under the stress induced by microplastics

open access: yesmLife, 2023
Microplastics and nanoplastics are emerging pollutants that substantially influence biological element cycling in natural ecosystems. Plastics are also prevalent in sewage, and they accumulate in waste‐activated sludge (WAS).
Jinting Liu   +3 more
doaj   +1 more source

Methyl fluoride affects methanogenesis rather than community composition of methanogenic archaea in a rice field soil. [PDF]

open access: yesPLoS ONE, 2013
The metabolic pathways of methane formation vary with environmental conditions, but whether this can also be linked to changes in the active archaeal community structure remains uncertain. Here, we show that the suppression of aceticlastic methanogenesis
Anne Daebeler   +2 more
doaj   +1 more source

Inhibiting Methanogenesis in Rumen Batch Cultures Did Not Increase the Recovery of Metabolic Hydrogen in Microbial Amino Acids

open access: yesMicroorganisms, 2019
There is an interest in controlling rumen methanogenesis as an opportunity to both decrease the emissions of greenhouse gases and improve the energy efficiency of rumen fermentation. However, the effects of inhibiting rumen methanogenesis on fermentation
Emilio M. Ungerfeld   +3 more
doaj   +1 more source

Microbial methanogenesis in the sulfate-reducing zone of surface sediments traversing the Peruvian margin [PDF]

open access: yesBiogeosciences, 2016
We studied the concurrence of methanogenesis and sulfate reduction in surface sediments (0–25 cm below sea floor) at six stations (70, 145, 253, 407, 990 and 1024 m) along the Peruvian margin (12° S).
J. Maltby   +3 more
doaj   +1 more source

The effect of 3-nitrooxypropanol, a potent methane inhibitor, on ruminal microbial gene expression profiles in dairy cows

open access: yesMicrobiome, 2022
Background Enteric methane emissions from dairy cows are an environmental problem as well as a gross feed energy loss to the animal. Methane is generated in the rumen by methanogenic archaea from hydrogen (H2) + carbon dioxide and from H2 + methanol or ...
Dipti W. Pitta   +10 more
doaj   +1 more source

Current Perspectives on Achieving Pronounced Enteric Methane Mitigation From Ruminant Production

open access: yesFrontiers in Animal Science, 2022
Limiting global warming to 1.5°C above pre-industrial levels by 2050 requires achieving net zero emissions of greenhouse gases by 2050 and a strong decrease in methane (CH4) emissions.
Emilio M. Ungerfeld   +2 more
doaj   +1 more source

Formaldehyde oxidation and methanogenesis [PDF]

open access: yesJournal of Bacteriology, 1984
Formaldehyde oxidation by cell-free extracts of Methanobacterium thermoautotrophicum was shown to drive methanogenesis from CH3-S-coenzyme M or HCHO under a nonreductive atmosphere of N2. Under N2 when HCHO was the sole source of carbon and reducing equivalents in the reaction, it underwent oxidation and reduction events (disproportionation), the sum ...
J C, Escalante-Semerena, R S, Wolfe
openaire   +2 more sources

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