Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium peregrinum (ex Bojalil et al. 1962) Kusunoki and Ezaki 1992.
Note: initially it was considered synonymous with Mycobacterium fortuitum.
Member of the Mycobacterium fortuitum complex.
Acid-fast rods,1.5-4 x 0.5 μm.
Colonies on egg medium appear in 7 days and are intermediate between smooth and
rough, and white to slightly yellowish in color but non-photochromogenic.
Temperature range for growth is 28-37 ºC. Grows in media supplemented with 5%
NaCl. Growth on MacConkey agar occurs at 28 ºC, but not at 37 ºC.
Isolated from bronchial aspirations from a child. Also isolated from skin and gills of fish (Ictalurus nebulosus & Carassius carassius).
Resistant to hydroxylamine (500 µg/ml) and doxycycline (16 mg/ml). Susceptible to amikacin (32 mg/ml).
Rarely a cause of pulmonary disease.
- 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.
- Kusunoki S, Ezaki T. Proposal of Mycobacterium peregrinum sp. nov., nom. rev., and elevation of Mycobacterium chelonae subsp.
abscessus (Kubica et al.) to species status: Mycobacterium abscessus comb. nov. Int J Syst Bacteriol 1992; 42:240-245.
- Bhalla, G. S., Sarao, M. S., Kalra, D., Bandyopadhyay, K., & John, A. R. (2018). Methods of phenotypic identification of non-
tuberculous mycobacteria. Practical Laboratory Medicine, 12, e00107.
- Stephen Berger 2019. GIDEON Guide to Medically Important Bacteria, eBook.
- Mrlik V, Slany M, Kubecka J, Seda J, Necas A, Babak V, Slana I, Kriz P, Pavlik I. 2012. A low prevalence of mycobacteria in
freshwater fish from water reservoirs, ponds and farms. J. Fish Dis. 35:497–504. doi:10.1111/j.1365-2761.2012.01369.x
- 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, 7 and 14 days), acid phosphatase, catalase inactivated at 68 ºC, iron uptake, nitrate reduction,
pyrazinamidase, tellurite reduction, and urea hydrolysis.
Can utilize as sole carbon source: fructose, glucose, succinate, pyruvate, propionate, mannitol and trehalose.
Negative results for niacin accumulation.
No utilization of benzoate, citrate, oxalate, xylose and sorbitol.
Variable results for Tween hydrolysis.
(c) Costin Stoica