Query: NC_020389:714178 Methanosarcina mazei Tuc01, complete genome Lineage: Methanosarcina mazei; Methanosarcina; Methanosarcinaceae; Methanosarcinales; Euryarchaeota; Archaea General Information: This organism is a strictly anaerobic, non-motile, methane-producing archaeon. This organism can also aggregate forming large irregular shaped clumps of cells. Occasionally these aggregates can grow to 1000 microns or more in diameter. Growth occurs at pH 5.5-8.0, with optimum growth at pH 6.8-7.2. Growth occurs at pH 5.5-8.0, with optimum growth at pH 6.8-7.2. Can be found in decaying leaf litter, garden soil, sewage treatment sludge digestors, black mud, feces of herbivores and other urban waste and sewage products.
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General Information: This strain was isolated in 1924 from garden soil in Connecticut, USA, by E. Wyer and L. Rettger. It is one of the best studied solventogenic clostridia. Solvent-producing bacterium. This genus comprises about 150 metabolically diverse species of anaerobes that are ubiquitous in virtually all anoxic habitats where organic compounds are present, including soils, aquatic sediments and the intestinal tracts of animals and humans. This shape is attributed to the presence of endospores that develop under conditions unfavorable for vegetative growth and distend single cells terminally or sub-terminally. Spores germinate under conditions favorable for vegetative growth, such as anaerobiosis and presence of organic substrates. It is believed that present day Mollicutes (Eubacteria) have evolved regressively (i.e., by genome reduction) from gram-positive clostridia-like ancestors with a low GC content in DNA. This organism is a benign saccharolytic and proteolytic soil bacterium capable of producing a number of organic solvents (solventogenic bacterium) through fermentation of various organic compounds. acetobutyricum were isolated by Chaim Weizman during the World War I and used to develop industrial starch-based acetone, butanol and ethanol fermentation processes.