| Mycobacterium brumae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium brumae Luquin et al. 1993.
Mycobacterium, Mycobacterium brumae Luquin et al. 1993.
Strong acid-fast short rods, 2-2.5 x 0.3-0.5 μm, except for a small number (less than
10%) of cyanophil forms. Clumping or cord formation may be observed on Middlebrook
7H12 medium.
10%) of cyanophil forms. Clumping or cord formation may be observed on Middlebrook
7H12 medium.
Colonies on Lowenstein–Jensen and on Middlebrook 7H12 agar are eugenic, rough,
and non-pigmented in the dark and after exposure to light. Growth occurs within 5
days at 30 and 37 ºC, but not at 42 or 45 ºC. No growth on MacConkey agar w/o crystal
violet or on media supplemented with 5% NaCl.
and non-pigmented in the dark and after exposure to light. Growth occurs within 5
days at 30 and 37 ºC, but not at 42 or 45 ºC. No growth on MacConkey agar w/o crystal
violet or on media supplemented with 5% NaCl.
Isolated from river water, soil, and human sputum.
Susceptible to hydroxylamine (500 μg/ml), ethambutol (2 μg/ml), kanamycin (20 μg/ml). Resistant to rifampin (40 μg/ml), isoniazid (1
μg/ml), and streptomycin (4 μg/ml).
Susceptible to hydroxylamine (500 μg/ml), ethambutol (2 μg/ml), kanamycin (20 μg/ml). Resistant to rifampin (40 μg/ml), isoniazid (1
μg/ml), and streptomycin (4 μg/ml).
Considered to be non-pathogenic.
- John G. Magee and Alan C. Ward 2012. Family III. Mycobacteriaceae Chester 1897, 63AL in Bergey’s Manual of Systematic
Bacteriology, Volume Five The Actinobacteria, Part A, Michael Goodfellow & al. (editors), 312-375. - Luquin M, Ausina V, Vincent-Levy-Frebault V, Laneelle MA, Belda F, Garcia-Barcelo M, Prats G, Daffe M. Mycobacterium brumae
sp. nov., a rapidly growing, nonphotochromogenic mycobacterium. Int. J. Syst. Bacteriol. 1993; 43:405-413. - Cecilia Brambilla, Alejandro Sanchez-Chardi, Mıriam Perez-Trujillo, Esther Julian and Marina Luquin 2012. Cyclopropanation of -
mycolic acids is not required for cording in Mycobacterium brumae and Mycobacterium fallax. Microbiology (Reading, England).
158. 1615-21. 10.1099/mic.0.057919-0. - Jimenez MS, Julian E, Luquin M. Misdiagnosis of Mycobacterium brumae infection. J Clin Microbiol. 2011;49(3):1190‐1192. doi:
10.1128/JCM.01540-10
Positive results for nitrate reduction, iron uptake, catalase, beta-glucosidase, heat-stable catalase (68 ºC weak reaction),
pyrazinamidase, Tween 80 hydrolysis, and urease.
Can utilize as sole carbon source citrate, fructose, glucose, and inositol.
Negative results for arylsulfatase (3 days), beta-galactosidase, and niacin accumulation.
No utilization of mannitol, inositol utilization, and sorbitol.
pyrazinamidase, Tween 80 hydrolysis, and urease.
Can utilize as sole carbon source citrate, fructose, glucose, and inositol.
Negative results for arylsulfatase (3 days), beta-galactosidase, and niacin accumulation.
No utilization of mannitol, inositol utilization, and sorbitol.
(c) Costin Stoica
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