| Mycobacterium doricum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium doricum Tortoli et al. 2001.
Mycobacterium, Mycobacterium doricum Tortoli et al. 2001.
Acid-alcohol fast rods. Nonmotile. Asporogenous.
Colonies on Lowenstein-Jensen medium are smooth, scotochromogenic, and
strongly yellow-pigmented. Growth occurs within 2 weeks at 25-37 ºC. Does not grow
at 42 or 45 ºC. No growth on MacConkey agar (without crystal violet) or on media
supplemented with 5% (w/v) NaCl, p-nitrobenzoate or oleate.
strongly yellow-pigmented. Growth occurs within 2 weeks at 25-37 ºC. Does not grow
at 42 or 45 ºC. No growth on MacConkey agar (without crystal violet) or on media
supplemented with 5% (w/v) NaCl, p-nitrobenzoate or oleate.
Isolated from cerebrospinal fluid of a severely immunocompromised AIDS patient, and from contaminated femur fracture.
Resistant to thiophene-2-carboxylic acid. Susceptible to thiacetazone, hydroxylamine (500 mg/l), amikacin, azithromycin,
clarithromycin, ciprofloxacin, clofazimine, ethambutol, isoniazid, ofloxacin, rifabutin, rifampicin, sparfloxacin, streptomycin, and
trimethoprim/sulfamethoxazole.
Resistant to thiophene-2-carboxylic acid. Susceptible to thiacetazone, hydroxylamine (500 mg/l), amikacin, azithromycin,
clarithromycin, ciprofloxacin, clofazimine, ethambutol, isoniazid, ofloxacin, rifabutin, rifampicin, sparfloxacin, streptomycin, and
trimethoprim/sulfamethoxazole.
Undetermined. May be a cause of osteomyelitis and soft tissue infection.
- 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. - Tortoli E, Piersimoni C, Kroppenstedt RM, Montoya-Burgos JI, Reischl U, Giacometti A, Emler S. Mycobacterium doricum sp. nov.
Int J Syst Evol Microbiol 2001; 51:2007-2012. - Pettit AC, Jahangir AA, Wright PW. Mycobacterium doricum osteomyelitis and soft tissue infection. Emerg Infect Dis. 2011;17(11):
2075‐2077. doi:10.3201/eid1711.110460
Positive results for nitrate reductase, tellurite reductase and urease.
Negative results for arylsulfatase (3 days), niacin, beta-glucosidase, semiquantitative catalase test, thermostable catalase (68 ºC),
and Tween 80 hydrolysis.
Negative results for arylsulfatase (3 days), niacin, beta-glucosidase, semiquantitative catalase test, thermostable catalase (68 ºC),
and Tween 80 hydrolysis.
(c) Costin Stoica
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