| Mycobacterium arosiense |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium arosiense Bang et al. 2008.
Member of the the Mycobacterium avium complex (MAC).
Mycobacterium, Mycobacterium arosiense Bang et al. 2008.
Member of the the Mycobacterium avium complex (MAC).
Acid-fast rods. Gram-positive.
Colonies after 14 days incubation at 36-42 ºC, are small, smooth, and yellow
(scotochromogenic). Optimum temperature for growth is 42 ºC.
(scotochromogenic). Optimum temperature for growth is 42 ºC.
Isolated from a bone biopsy from the clavicle of a young girl with osteomyelitis, from an adult with osteomyelitis, and from an adult
with pulmonary disease. Susceptible to clarithromycin, rifamycins, amikacin, moxifloxacin, linezolid and clofazimine. Resistant to
isoniazid, fluoroquinolones and streptomycin.
with pulmonary disease. Susceptible to clarithromycin, rifamycins, amikacin, moxifloxacin, linezolid and clofazimine. Resistant to
isoniazid, fluoroquinolones and streptomycin.
Can produce osteomyelitis and pulmonary disease in immunocompromised patients.
- Bang D, Herlin T, Stegger M, Andersen AB, Torkko P, Tortoli E, Thomsen VO. Mycobacterium arosiense sp. nov., a slowly growing,
scotochromogenic species causing osteomyelitis in an immunocompromised child. Int J Syst Evol Microbiol 2008; 58:2398-2402. - Bang, D., Rasmussen, E.M. & Andersen, A.B. Mycobacterium arosiense, an unexpected cause of osteomyelitis in a patient with
sarcoidosis: a case report. BMC Infect Dis 19, 994 (2019). https://doi.org/10.1186/s12879-019-4638-3. - Tortoli E, Adriani B, Baruzzo S, et al. Pulmonary disease due to Mycobacterium arosiense, an easily misidentified pathogenic
novel mycobacterium. J Clin Microbiol. 2009;47(6):1947–1949. doi:10.1128/JCM.02449-08
Positive results for acid and alkaline phosphatase, thermotolerant catalase (68 ºC), nitrate reductase, and pyrazinamidase.
Negative results for catalase (semi-quantitative test) and urea hydrolysis.
Negative results for catalase (semi-quantitative test) and urea hydrolysis.
(c) Costin Stoica
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