Query: NC_013928:370893 Streptococcus mutans NN2025, complete genome
Lineage: Streptococcus mutans; Streptococcus; Streptococcaceae; Lactobacillales; Firmicutes; Bacteria
General Information: This strain is a clinical serotype c strain isolated in Japan in 2002. 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. Streptococcus mutans was first isolated in 1924 from human carious (cavities) lesions and is the main cause of tooth decay. This organism thrives in a bacterial community known as a dental plaque which forms on the surface of teeth. This organism has also been implicated in cases of infective endocarditis.
Subject: NC_013890:808791 Dehalococcoides sp. GT chromosome, complete genome
Lineage: Dehalococcoides mccartyi; Dehalococcoides; Dehalococcoidaceae; Dehalococcoidales; Chloroflexi; Bacteria
General Information: Temp: Mesophile; Habitat: Fresh water, Groundwater. Dehalococcoides sp. GT was isolated from an chloroethene-contaminated aquifer. This strain can dechlorinate trichloroethene and vinyl chloride. This organism was isolated from environments contaminated with organic chlorinated chemicals such as tetrachloroethene (PCE) and trichloroethane (TCE), common contaminants in the anaerobic subsurface. There are at least 15 organisms from different metabolic groups, halorespirators, acetogens, methanogens and facultative anaerobes, that are able to metabolize PCE. Some of these organisms couple dehalogenation to energy conservation and utilize PCE as the only source of energy while others dehalogenate tetrachloroethene fortuitously. This non-methanogenic, non-acetogenic culture is able to grow with hydrogen as the electron donor, indicating that hydrogen/PCE serves as an electron donor/acceptor for energy conservation and growth. This organism can only grow anaerobically in the presence of hydrogen as an electron donor and chlorinated compounds as electron acceptors. Dehalococcoides ethenogenes is typically found at sites contaminated with chlorinated solvents, and have been independently isolated in dozens of sites across the USA.