| Mycobacterium duvalii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium duvalii Stanford and Gunthorpe 1971.
Mycobacterium, Mycobacterium duvalii Stanford and Gunthorpe 1971.
Acid-fast pleomorphic rods of moderate length. No cross-barring.
Colonies grow in less than 7 days at 25-37 ºC, on inspissated egg media are rough
or smooth, bright yellow. No growth at 42 or 45 ºC.
or smooth, bright yellow. No growth at 42 or 45 ºC.
Isolated from cases of human leprosy.
Susceptible to hydroxylamine (500 μg/ml), ethambutol (5 μg/ml), cycloserine, viomycin, kanamycin, and capreomycin. Resistant to
streptomycin, isoniazid, sodium aminosalicylate and rifampicin (25 μg/ml).
Susceptible to hydroxylamine (500 μg/ml), ethambutol (5 μg/ml), cycloserine, viomycin, kanamycin, and capreomycin. Resistant to
streptomycin, isoniazid, sodium aminosalicylate and rifampicin (25 μg/ml).
Considered to be non-pathogenic to humans or animals.
- 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. - Stanford JL, Gunthorpe WJ. A study of some fast-growing scotochromogenic mycobacteria including species descriptions of
Mycobacterium gilvum (new species) and Mycobacterium duvalii (new species). Br J Exp Pathol 1971; 52:627-637. - 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. - Tsukamura M, Yano I, Imaeda T. Mycobacterium fortuitum subspecies acetamidolyticum, a new subspecies of Mycobacterium
fortuitum. Microbiol Immunol 1986; 30:97-110. - Casal M, Calero JR. Mycobacterium gadium sp. nov. a new species of rapid-growing scotochromogenic mycobacteria. Tubercle
1974; 55:299-308.
Positive results for catalase, heat-stable catalase (68 ºC), beta-esterase, nitrate
reduction, nicotinamidase, pyrazinamidase, and urease.
Can utilize as sole carbon source mannitol, acetate, fumarate, fructose, glucose, succinate, malate, and pyruvate.
Acid is formed from glucose, mannitol, mannose, sorbitol and trehalose.
Negative results for acid phosphatase, arylsulphatase (3, 7 and 15 days), alpha-esterase, semi-quantitative catalase test,
beta-galactosidase, iron uptake, niacin, neutral red test, acetamidase, allantoinamidase, benzamidase, isonicotinamidase, and
succinamidase.
No acid production from arabinose, dulcitol, erythritol, galactose, inositol, lactose, raffinose, rhamnose and xylose.
No utilization as sole carbon source of benzoate, citrate, malonate, lactate, oxalate, tartrate, sucrose, mannose, galactose, arabinose,
xylose, rhamnose, trehalose, inositol, sorbitol, and ethanol.
Variable results for Tween 80 hydrolysis.
reduction, nicotinamidase, pyrazinamidase, and urease.
Can utilize as sole carbon source mannitol, acetate, fumarate, fructose, glucose, succinate, malate, and pyruvate.
Acid is formed from glucose, mannitol, mannose, sorbitol and trehalose.
Negative results for acid phosphatase, arylsulphatase (3, 7 and 15 days), alpha-esterase, semi-quantitative catalase test,
beta-galactosidase, iron uptake, niacin, neutral red test, acetamidase, allantoinamidase, benzamidase, isonicotinamidase, and
succinamidase.
No acid production from arabinose, dulcitol, erythritol, galactose, inositol, lactose, raffinose, rhamnose and xylose.
No utilization as sole carbon source of benzoate, citrate, malonate, lactate, oxalate, tartrate, sucrose, mannose, galactose, arabinose,
xylose, rhamnose, trehalose, inositol, sorbitol, and ethanol.
Variable results for Tween 80 hydrolysis.
(c) Costin Stoica
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