| Mycobacterium thermoresistibile |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium thermoresistibile Tsukamura 1966.
Mycobacterium, Mycobacterium thermoresistibile Tsukamura 1966.
Acid-fast rods, 3-6 μm long.
Colonies are smooth or rough, yellow, in 3-5 days on inspissated egg media. The
temperature range for growth is 37-52 ºC. On primary isolation, growth may be slow
and the species may be confused with slowly growing scotochromogens.
No growth on MacConkey agar w/o crystal violet. Variable growth on media
supplemented with 5% NaCl.
temperature range for growth is 37-52 ºC. On primary isolation, growth may be slow
and the species may be confused with slowly growing scotochromogens.
No growth on MacConkey agar w/o crystal violet. Variable growth on media
supplemented with 5% NaCl.
Isolated from soil and human sputum.
Resistant to isoniazid (0.25 p,g/ml). Susceptible to hydroxylamine (500 μg/ml), streptomycin (4.0 μg/ml), and ethambutol (1.0 μg/ml).
Resistant to isoniazid (0.25 p,g/ml). Susceptible to hydroxylamine (500 μg/ml), streptomycin (4.0 μg/ml), and ethambutol (1.0 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. - Schroder KH, Naumann L, Kroppenstedt RM, Reischl U. Mycobacterium hassiacum sp. nov., a new rapidly growing thermophilic
mycobacterium. Int J Syst Bacteriol 1997; 47:86-91. - Rastogi N, Legrand E, Sola C. The mycobacteria: an introduction to nomenclature and pathogenesis. Rev Sci Tech. 2001;20(1):21‐
54. doi:10.20506/rst.20.1.1265 - Schroder KH, Naumann L, Kroppenstedt RM, Reischl U. Mycobacterium hassiacum sp. nov., a new rapidly growing thermophilic
mycobacterium. Int J Syst Bacteriol 1997; 47:86-91. - Tsukamura M, Mizuno S, Tsukamura S. Numerical analysis of rapidly growing, scotochromogenic mycobacteria, including
Mycobacterium obuense sp. nov., nom. rev., Mycobacterium rhodesiae sp. nov., nom. rev., Mycobacterium aichiense sp. nov.,
nom. rev., Mycobacterium chubuense sp. nov., nom. rev., and Mycobacterium tokaiense sp. nov., nom. rev. Int. J. Syst. Bacteriol.
1981; 31:263-275. - Kirschner P, Teske A, Schroder KH, Kroppenstedt RM, Wolters J, Bottger EC. Mycobacterium confluentis sp. nov. Int J Syst
Bacteriol 1992; 42:257-262.
Positive results for catalase, semiquantitative catalase test, thermostable catalase (68 ºC), alpha- and beta-esterase, nitrate
reduction, nicotinamidase, pyrazinamidase,Tween 80 hydrolysis, and urease. Acid is produced from fructose.
Can utilize as sole carbon source acetate, ethanol, fructose, and pyruvate.
Negative results for arylsulfatase (3, 7 and 14 days), beta-galactosidase, iron uptake, niacin accumulation, allantoinase,
acetamidase, benzamidase, isonicotinamidase, and succinamidase.
No utilization as sole carbon source of acetamide, benzoate, citrate, fumarate (most strains), myo-inositol, mannose, mannitol,
mucate / oxalate, propanol, mannose, galactose, arabinose, sorbitol, trehalose, or xylose.
No acid production from glucose, inositol, arabinose, or sucrose.
Variable results for acid phosphatase, mannitol fermentation, utilization of succinate, malate and fumarate.
reduction, nicotinamidase, pyrazinamidase,Tween 80 hydrolysis, and urease. Acid is produced from fructose.
Can utilize as sole carbon source acetate, ethanol, fructose, and pyruvate.
Negative results for arylsulfatase (3, 7 and 14 days), beta-galactosidase, iron uptake, niacin accumulation, allantoinase,
acetamidase, benzamidase, isonicotinamidase, and succinamidase.
No utilization as sole carbon source of acetamide, benzoate, citrate, fumarate (most strains), myo-inositol, mannose, mannitol,
mucate / oxalate, propanol, mannose, galactose, arabinose, sorbitol, trehalose, or xylose.
No acid production from glucose, inositol, arabinose, or sucrose.
Variable results for acid phosphatase, mannitol fermentation, utilization of succinate, malate and fumarate.
(c) Costin Stoica
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