منابع مشابه
Methane from acetate.
The general features are known for the pathway by which most methane is produced in nature. All acetate-utilizing methanogenic microorganisms contain CODH which catalyzes the cleavage of acetyl-CoA; however, the pathway differs from all other acetate-utilizing anaerobes in that the methyl group is reduced to methane with electrons derived from oxidation of the carbonyl group of acetyl-CoA to CO...
متن کاملThe methane fermentations of acetate and methanol.
the superscripts denoting separate isotopic labels. Since Pine and Barker (1956) established that the methyl group of acetate is transferred intact during its incorporation into methane, we wished to determine whether methanol could be metabolized analogously. The deuterium incorporation procedure previously employed for the study of the acetate fermentation was used to establish that all three...
متن کاملMethane emissions from cattle.
Increasing atmospheric concentrations of methane have led scientists to examine its sources of origin. Ruminant livestock can produce 250 to 500 L of methane per day. This level of production results in estimates of the contribution by cattle to global warming that may occur in the next 50 to 100 yr to be a little less than 2%. Many factors influence methane emissions from cattle and include th...
متن کاملElectron Compton scattering from methane and methane-d4
Quasi-elastic electron scattering at high-momentum transfer was measured for CH4 and CD4 in the gas phase. At high-momentum transfer, wo scattering peaks are observed in each molecule. We interpret the splitting as due to independent Compton scattering from each nucleus, such hat, at an impact energy of 2 keV and 100◦ scattering angle, the peaks for the C and H in CH4 are split by 2.1 eV while ...
متن کاملQuasielastic electron scattering from methane, methane-d4, methane-d2, ethylene, and 2-methylpropane.
Quasielastic electron scattering from gaseous species at high momentum transfer was recently reported for the first time [Cooper et al., J. Electron Spectrosc. Relat. Phenom. 155, 28 (2007)]. The first results for CH(4) and CD(4) were well explained by a classical electron Compton scattering picture in which the electron scatters independently from each atom rather than the molecule as a whole....
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1992
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.174.17.5489-5495.1992