Methanogens are anaerobic archaea that produce methane as a byproduct of their energy metabolism, i.e., catabolism. Methane production, or methanogenesis...

Methanogen homoaconitase (EC 4.2.1.114, methanogen HACN) is an enzyme with systematic name (R)-2-hydroxybutane-1,2,4-tricarboxylate hydro-lyase ((1R...

Methanopyrus is a genus of methanogen, with a single described species, Methanopyrus kandleri. It is a rod-shaped hyperthermophile, discovered on the wall...

them, and they only inhabit anoxic environments. A shared trait by all methanogens is their ability to recycle products. They can use the products of metabolic...

pathogens or parasites; many are mutualists or commensals, such as the methanogens (methane-producers) that inhabit the gastrointestinal tract in humans...

Methanogens are a group of microorganisms that produce methane as a byproduct of their metabolism. They play an important role in the digestive system...

ends by roughly 2,696 Ma. 3200 Paleoarchean Prokaryotic archaea (e.g. methanogens) and bacteria (e.g. cyanobacteria) diversify rapidly, along with early...

this wide distribution is a group of unique cofactors that evolved in methanogens, which are restricted to this group of archaea. Metabolism involves a...

degrees C and isotopically heavy CH4 production by a hyperthermophilic methanogen under high-pressure cultivation". Proceedings of the National Academy...

formation of methane coupled to energy conservation by microbes known as methanogens. It is the fourth and final stage of anaerobic digestion. Organisms capable...

together with methanogens, as exemplified by the conversion of carbohydrates by a Methanosarcina barkeri and coculture of A. woodii. The methanogen takes up...

kingdom of archaea. Methanobacteriati are highly diverse and include methanogens, which produce methane and are often found in intestines; halobacteria...

CO2   ΔG° = −36 kJ/mol This disproportionation reaction is catalysed by methanogen archaea in their fermentative metabolism. One electron is transferred...

methane trapped in the crystal lattice of ice. This methane, produced by methanogen microbes, has a 13C ⁄ 12C isotope ratio about 6% below normal (δ13C −6...

such ecosystems. Chemoautotrophs generally fall into several groups: methanogens, sulfur oxidizers and reducers, nitrifiers, anammox bacteria, and thermoacidophiles...

Methanocaldococcus formerly known as Methanococcus is a genus of coccoid methanogen archaea. They are all mesophiles, except the thermophilic M. thermolithotrophicus...

proposed that the condition should be classified as a separate 'intestinal methanogen overgrowth' (IMO). Symptoms traditionally linked to SIBO include bloating...

the class Methanobacteria. Species within this order differ from other methanogens in that they can use fewer catabolic substrates and have distinct morphological...

cows, gas and burps are produced by methane-generating microbes called methanogens, which live inside the cow's digestive system. Proposals for reducing...

dioxide, although alternatives such as formate are also used. Though all methanogens use certain key coenzymes, cofactors, and intermediates to produce methane...

respiration only known to be conducted by some members of the domain Archaea. Methanogens occur in landfills and soils, ruminants (for example, cattle), the guts...

stability. The evolution of the earliest organisms, likely anaerobic methanogen microbes, started the process by converting atmospheric hydrogen into...

Zahnle, Kevin; Kamber, Balz S. (2009). "Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event". Nature. 458 (7239): 750–753...

fermentation (H2, CO2, acetate, and formate). M. smithii is a hydrogenotrophic methanogen that utilizes hydrogen by combining it with carbon dioxide to form methane...

its wide range of substrates used in methanogenesis. While most known methanogens produce methane from H2 and CO2, M. barkeri can also dismutate methylated...

Methanogenium frigidum is a psychrophilic, H2-using methanogen from Ace Lake, Antarctica. Cells are psychrophilic, irregular, slightly halophilic and non-motile...

kingdom Euryarchaeota. Several of the classes of the Euryarchaeota are methanogens and the Methanobacteria are one of these classes. Methanobacteria can...

providing an optimal microenvironment for sulfate-reducing bacteria and methanogens, ligninolytic, cellulolytic, and amylolytic fungi are prevalent in the...

Use of hydroxyarchaeol as a biomarker was a primary way to identify methanogens in the environment, though it has become supplementary to metagenomic...

from humans in dental plaque and in their gastrointestinal tract. As a methanogen and a hydrogenotroph, this prokaryote can produce methane by using hydrogen...