Results 191 to 200 of about 40,593 (220)
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Methanogenesis in subglacial sediments
Environmental Microbiology Reports, 2010Summary Methanogenic archaea have a unique role in Earth's global carbon cycle as producers of the greenhouse gas methane (CH 4 ). However, despite the fact that ice covers 11% of Earth's continental landmass, evidence for methanogenic activity in subglacial environments has
Eric S, Boyd +4 more
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The bioenergetics of methanogenesis
Biochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics, 1984The reduction of CO2 or any other methanogenic substrate to methane serves the same function as the reduction of oxygen, nitrate or sulfate to more reduced products. These exergonic reactions are coupled to the production of usable energy generated through a charge separation and a protonmotive-force-driven ATPase.
Daniels, L., Sparling, R., Sprott, G.
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UNUSUAL COENZYMES OF METHANOGENESIS
Annual Review of Biochemistry, 1990Abstract An isolated area of biochemistry has yielded some surprises — six new cofactors including the first nickel-tetrapyrrole and a new method of CO 2 fixation.
A A, DiMarco, T A, Bobik, R S, Wolfe
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Biochemistry of methanogenesis
Experientia, 1982The recent and unexpected finding that methanogenic bacteria occupy an isolated biochemical island in the sea of procaryotes has added a touch of excitement to the study of these organisms1. This island is defined by such diverse biochemical qualities as: a very restricted range of oxidizable substrates coupled to the biosynthesis of methane; synthesis
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Biochemistry of Methanogenesis
Critical Reviews in Biochemistry and Molecular Biology, 1992Methane is a product of the energy-yielding pathways of the largest and most phylogenetically diverse group in the Archaea. These organisms have evolved three pathways that entail a novel and remarkable biochemistry. All of the pathways have in common a reduction of the methyl group of methyl-coenzyme M (CH3-S-CoM) to CH4.
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Methanogenesis in monogastric animals
Environmental Monitoring and Assessment, 1996Studies of methanogenic bacteria present in monogastric animals are still scarce. Methanogens have been isolated from faeces of rat, horse, pig, monkey, baboon, rhinoceros, hippopotamus, giant panda, goose, turkey and chicken. The predominant methanogen in all except the chicken and turkey is species of Methanobrevibacterium.
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Methanogenesis in Marine Sediments
Annals of the New York Academy of Sciences, 2008The anaerobic conversion of complex organic matter to CH4 is an essential link in the global carbon cycle. In freshwater anaerobic environments, the organic matter is decomposed to CH4 and CO2 by a microbial food chain that terminates with methanogens that produce methane primarily by reduction of the methyl group of acetate and also reduction of CO2 ...
James G, Ferry, Daniel J, Lessner
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2018
Agriculture is a significant source of methane, contributing about 12% of the global anthropogenic methane emissions. Major sources of methane from agricultural activities are fermentation in the reticulo-rumen of ruminant animals (i.e., enteric methane), fermentation in animal manure, and rice cultivation.
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Agriculture is a significant source of methane, contributing about 12% of the global anthropogenic methane emissions. Major sources of methane from agricultural activities are fermentation in the reticulo-rumen of ruminant animals (i.e., enteric methane), fermentation in animal manure, and rice cultivation.
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Inhibition of Methanogenesis by DDT
Nature, 1971Methanobacterium strain M.o.H. is a strict, anaerobic methane-forming bacterium which obtains its energy from the oxidation of hydrogen; the electrons generated are passed to CO2 which is reduced to CH4. Inhibition of CH4 biosynthesis by alkyl halides was first documented by Bauchop1 who reported that the addition of carbon tetrachloride, chloroform or
B C, McBride, R S, Wolfe
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Bioenergetics of Methanogenesis
1993The bioenergetics of methanogens could be expected to have special features, given that they are members of the Archaea and utilize a number of unique reactions and coenzymes in the pathways of methanogenesis. This turns out to be so; however, it was not until 1980 that the elucidation of the biochemistry of methanogenesis attained a stage where the ...
Volker Müller +2 more
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