Runyon 1965, ATCC 13950
Mycobacterium intracellulare is a species of the phylum actinobacteria (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus Mycobacterium.
- Usually smooth, rarely rough and nonpigmented colonies. Ageing colonies may become yellow.
- Growth on Löwenstein-Jensen medium and Middlebrook 7H10 at 37°C after 7 or more days.
- Resistant to isoniazid, ethambutol, rifampin and streptomycin.
- M. intracellulare and Mycobacterium avium form the M. avium complex (MAC).
- Remarkable ITS heterogeneity within different M. intracellulare isolates.
- Most frequently encountered in pulmonary secretions from patients suffering from tuberculosis-like disease and from surgical specimens from such patients.
- When isolated from human secretions, it is may be cause of pulmonary disease. It is, however, frequently commensal flora.
- Biosafety level 2
Strain ATCC 13950 = CCUG 28005 = CIP 104243 = DSM 43223 = JCM 6384 = NCTC 13025.
- Runyon, E. 1965. Pathogenic mycobacteria. Advances in Tuberculosis Research, 14, 235-287.
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