Mycobacterium

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Related to Mycobacterium marinum: Mycobacterium chelonae, Mycobacterium ulcerans

Mycobacterium

 

a genus of bacteria, related to actinomycetes; it differs from true bacteria in a number of ways. The young vegetative cells are rodlike (0.5–0.8 × 2.2 microns); they are capable of branching and acquiring V or Y shapes. In old cultures spherical cells predominate. Mycobacteria, which do not form endospores, are nonmotile, gram-positive, and strictly aerobic. They reproduce mainly by dividing and budding. Mycobacteria contain carotenoids, and, as a result, their colonies are often pigmented (yellow, orange, or red). Owing to their cell composition (including lipides and wax), some myco-bacteria, in contrast to other bacteria, are acid-fast.

Mycobacteria are widely distributed in soils and are active in the mineralization of plant remains. Some species of Mycobacterium are nitrogen-fixing microorganisms; others are capable of metabolizing the carbohydrates of petroleum and natural gas and, when cultured, accumulate protein, which is used for fodder and other purposes. Some species of Mycobacterium are pathogenic to humans (for example, mycobacteria are the causative agents of tuberculosis and leprosy).

A. A. IMSHENETSKII

References in periodicals archive ?
Flotillin and RacH modulate the intracellular immunity of dictyostelium to Mycobacterium marinum infection.
Micobacteriose por Mycobacterium marinum em "linguado" Paralichthys orbignyanus e em "barber goby" Elacatinus figaro: diagnostico histopatologico e imuno-histoquimico.
Hurst LC, Amadio PC, Badalamente MA, et al: Mycobacterium marinum infections of the hand.
Osteomyelitis and synovitis produced by Mycobacterium marinum in a fisherman.
Mycobacterium marinum is an aquatically acquired pathogen responsible for a cutaneous infection commonly referred to as fish tank granuloma or swimming pool granuloma.
Listeria monocytogenes Staphylococcus saprophyticus Streptococcus agalactiae Streptococcus mitis Streptococcus Groups C, G and F Acinetobacter baumannii Acinetobacter calcoaceticus Citrobacter freundii Citrobacter koseri Enterobacter aerogenes Enterobacter cloacae Morganella morganii Neisseria gonorrhoeae Proteus vulgaris Pseudomonas stutzeri Clostridium perfringens Propionibacterium acnes Chlamydia pneumoniae Legionella pneumophila Mycobacterium avium Mycobacterium marinum Mycoplasma pneumoniae
Identification of Mycobacterium marinum 65 kD heat shock protein gene by polymerase chain reaction restriction analysis from lesions of swimming pool granuloma.
Direct sequencing were performed in 106 NTM isolates, and out of those six isolates were not consistent with biochip identification results, including three Mycobacterium marinum, one Mycobacterium sp.
Multicenter study of incidence of Mycobacterium marinum in humans in Spain.
Using one such method, California scientists have screened about a quarter of the genome of Mycobacterium marinum, the cause of tuberculosis in fish and frogs, and found several genes that are active when the bacteria are grown in macrophages.
Insights from the complete genome sequence of Mycobacterium marinum on the evolution of Mycobacterium tuberculosis.

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