Query: NC_012924:277325 Streptococcus suis SC84, complete genome Lineage: Streptococcus suis; Streptococcus; Streptococcaceae; Lactobacillales; Firmicutes; Bacteria General Information: Streptococcus suis SC84 is a human clinical isolate. Streptococcus suis is a pathogen of pigs and is responsible for a variety of diseases including meningitis, arthritis and pneumonia. These infections can have substantial economic impact within the swine industry. Occasionally this organism can infect humans causing septicemia, meningitis and endocarditis. Causative agent of meningitis, endocarditis, septicemia and arthritis in swine. Streptococci are Gram-positive, nonmotile, nonsporeforming, catalase-negative cocci that occur in pairs or chains. Members of this genus vary widely in pathogenic potential. Most streptococci are facultative anaerobes, and some are obligate anaerobes.
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General Information: Isolated from forest soil near the Quabbin Reservoir in Massachusetts, USA. This organism plays an important industrial and ecological role in the anaerobic fermentation of cellulose and produces economically significant levels of acetate and ethanol. 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.