| Mycobacterium neworleansense |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium neworleansense Schinsky et al. 2004.
Synonym: Mycobacterium fortuitum biovar III.
Member of the Mycobacterium fortuitum complex.
Mycobacterium, Mycobacterium neworleansense Schinsky et al. 2004.
Synonym: Mycobacterium fortuitum biovar III.
Member of the Mycobacterium fortuitum complex.
Acid-fast, pleomorphic rods. Long filamentous forms are often observed. No spores,
capsules or aerial hyphae are present. Gram-positive.
capsules or aerial hyphae are present. Gram-positive.
Colonies are rough, wrinkled, and irregular edged. Grow on Lowenstein-Jensen
medium at 35 ºC in less than 7 days. Growth range 28-35 ºC. No growth at 42 ºC.
Colonies after incubation on heart infusion agar with 5% (v/v) rabbit blood for 2 days at
35 ºC are white to slightly beige, small-diameter (approx. 1 mm). Grows on 5% (w/v)
NaCl or on MacConkey agar without crystal violet. No growth in lysozyme.
medium at 35 ºC in less than 7 days. Growth range 28-35 ºC. No growth at 42 ºC.
Colonies after incubation on heart infusion agar with 5% (v/v) rabbit blood for 2 days at
35 ºC are white to slightly beige, small-diameter (approx. 1 mm). Grows on 5% (w/v)
NaCl or on MacConkey agar without crystal violet. No growth in lysozyme.
The type strain was isolated from a scalp wound.
Resistant to ampicillin, cefotaxime, ceftriaxone, erythromycin and vancomycin. Susceptible to amikacin, amoxycillin/clavulanate,
ciprofloxacin, doxycycline, imipenem, minocycline, sulfamethoxazole, and trimethoprim/sulfamethoxazole.
Resistant to ampicillin, cefotaxime, ceftriaxone, erythromycin and vancomycin. Susceptible to amikacin, amoxycillin/clavulanate,
ciprofloxacin, doxycycline, imipenem, minocycline, sulfamethoxazole, and trimethoprim/sulfamethoxazole.
Nontuberculous infections.
- Schinsky MF, Morey RE, Steigerwalt AG, Douglas MP, Wilson RW, Floyd MM, Butler WR, Daneshvar MI, Brown-Elliott BA, Wallace
RJJ, et al. Taxonomic variation in the Mycobacterium fortuitum third biovariant complex: description of Mycobacterium boenickei
sp. nov., Mycobacterium houstonense sp. nov., Mycobacterium neworleansense sp. nov. and Mycobacterium brisbanense sp.
nov. and recognition of Mycobacterium porcinum from human clinical isolates. Int J Syst Evol Microbiol 2004; 54:1653-1667. - 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. - Lamy B, Marchandin H, Hamitouche K, Laurent F. Mycobacterium setense sp. nov., a Mycobacterium fortuitum-group organism
isolated from a patient with soft tissue infection and osteitis. Int J Syst Evol Microbiol 2008; 58:486-490.
Positive results for arylsulfatase (3 and 10 days), semi-quantitative catalase test (>45 mm) (most strains), thermostable catalase (68
ºC), iron uptake, nitrate reduction, and urease.
Acid is produced oxidatively from i-erythritol, D-fructose, D-glucose, i-myo-inositol, D-mannitol, D-mannose, salicin, D-trehalose
and D-xylose.
Can utilize acetamide, adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, lactose, maltose, melibiose, raffinose,
L-rhamnose, D-sorbitol, starch or sucrose.
Acid is not produced from adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, lactose, maltose, melibiose, raffinose,
L-rhamnose, D-sorbitol, starch or sucrose.
No utilization of citrate, adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, L-rhamnose, D-sorbitol or sucrose.
ºC), iron uptake, nitrate reduction, and urease.
Acid is produced oxidatively from i-erythritol, D-fructose, D-glucose, i-myo-inositol, D-mannitol, D-mannose, salicin, D-trehalose
and D-xylose.
Can utilize acetamide, adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, lactose, maltose, melibiose, raffinose,
L-rhamnose, D-sorbitol, starch or sucrose.
Acid is not produced from adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, lactose, maltose, melibiose, raffinose,
L-rhamnose, D-sorbitol, starch or sucrose.
No utilization of citrate, adonitol, L-arabinose, cellobiose, dulcitol, D-galactose, glycerol, L-rhamnose, D-sorbitol or sucrose.
(c) Costin Stoica
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