Membrane ATPase from the aceticlastic methanogen Methanothrix thermophila
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چکیده
منابع مشابه
Comparison of acetate utilization among strains of an aceticlastic methanogen, Methanothrix soehngenii.
The kinetics of acetate utilization by concentrated suspensions of cells was examined in five strains of Methanothrix soehngenii. The rate of acetate utilization by all strains was dependent on the initial acetate concentration and followed simple Michaelis-Menten kinetics. The ability to utilize acetate differed among the various strains of M. soehngenii and was highest in the strain designate...
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The inhibitory effects of ammonia on two different degradation pathways of methanogenic acetate were evaluated using a pure culture (Methanosaeta thermophila strain PT) and defined co-culture (Methanothermobacter thermautotrophicus strain TM and Thermacetogenium phaeum strain PB), which represented aceticlastic and syntrophic methanogenesis, respectively. Growth experiments with high concentrat...
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Among methanogens, only 2 genera, Methanosaeta and Methanosarcina, are known to contribute to methanogenesis from acetate, and Methanosaeta is a specialist that uses acetate specifically. However, Methanosaeta strains so far have mainly been isolated from anaerobic digesters, despite the fact that it is widespread, not only in anaerobic methanogenic reactors and freshwater environments, but als...
متن کاملMembrane-bound electron transport in Methanosaeta thermophila.
The obligate aceticlastic methanogen Methanosaeta thermophila uses a membrane-bound ferredoxin:heterodisulfide oxidoreductase system for energy conservation. We propose that the system is composed of a truncated form of the F(420)H(2) dehydrogenase, methanophenazine, and the heterodisulfide reductase. Hence, the electron transport chain is distinct from those of well-studied Methanosarcina spec...
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A novel thermophilic, obligately methylotrophic, methanogenic archaeon, strain L2FAW(T), was isolated from a thermophilic laboratory-scale upflow anaerobic sludge blanket reactor fed with methanol as the carbon and energy source. Cells of strain L2FAW(T) were non-motile, irregular cocci, 0.7-1.5 mum in diameter and usually occurred singly (sometimes forming clusters of two or four cells). The c...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1993
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.175.1.80-84.1993