Query: NC_013169:1759900 Kytococcus sedentarius DSM 20547, complete genome Lineage: Kytococcus sedentarius; Kytococcus; Dermacoccaceae; Actinomycetales; Actinobacteria; Bacteria General Information: Country: USA; Temp: Mesophile; Temp: 28 - 36C; Habitat: Marine, Skin microflora. Strain DSM 20547, the type strain, is a free-living, nonmotile, Gram-positive bacterium, originally isolated from a marine environment in about 1944. It grows as spherical/coccoid and occurs predominantly in tetrads which can be arranged in cubical packets. It is non-encapsulated and does not form endospores, is strictly aerobic and chemoorganotrophic, requires methionine and other amino acids for growth, and grows well in NaCl at concentrations up to 10% (w/v). This organism is a normal commensal of human skin, however has been implicated in pitted keratolysis, pneumonia, and other opportunistic infections.
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General Information: This genus comprises a number of Gram-positive, acid-fast, rod-shaped aerobic bacteria and is the only member of the family Mycobacteriaceae within the order Actinomycetales. Like other closely related Actinomycetales, such as Nocardia and Corynebacterium, mycobacteria have unusually high genomic DNA GC content and are capable of producing mycolic acids as major components of their cell wall. Mycobacterium marinum is commonly found in fresh and salt water in North America. This bacterium, a close relative of M. tuberculosis, causes a tuberculosis-like disease in frogs, fish and other cold-blooded animals, and a peripheral granulomatous disease in humans. Human infections can be persistent and may lead to systemic infection and arthritis. M. marinum is photochromogenic, i.e. it produces bright yellow pigmentation (mainly beta-carotene) upon exposure to visible light. Infection is followed by a 2-8 week incubation period resulting in suppuration (pus) and organized ulcerating granulomas (tumorous lesions), predominantly localized in lymphatic and tendon sheaths, and cooler body tissues in the extremities.