Abstract:
:An acetate-fermenting strain of Methanosarcina was isolated from an acetate enrichment culture inoculated with anaerobic sludge from a waste treatment digestor. In pure culture, this organism fermented acetate in the absence of added hydrogen at rates comparable in magnitude to those found in digestor systems. This rate was significantly higher than previously obtained for pure cultures of this genus. Mineral components of yeast extract were highly stimulatory for cultures growing on methanol. Comparable stimulation was not observed for cultures growing on acetate. Labeling studies indicated that acetate was converted to methane and CO2 as predicted by previous studies on mixed cultures. Total oxidation or reduction of acetate was not the mechanism of conversion of acetate to methane by the pure culture. The ability of this strain to form colonies or to produce methane from acetate was apparently influenced by the choice of substrate and conditions used for growing the inoculum.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Mah RA,Smith MR,Baresi Ldoi
10.1128/AEM.35.6.1174-1184.1978subject
Has Abstractpub_date
1978-06-01 00:00:00pages
1174-84issue
6eissn
0099-2240issn
1098-5336journal_volume
35pub_type
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