Mycobacterium gordonae
Appearance
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Mycobacterium gordonae | |
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Species: | M. gordonae
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Binomial name | |
Mycobacterium gordonae Bojalil et al. 1962, ATCC 14470
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Mycobacterium gordonae is a species of Mycobacterium named for Ruth E. Gordon.[1]
Description
Gram-positive, nonmotile and moderate to long acid-fast rods.
- Commonly found in tap water and soil. Casual resident in human sputum and gastric lavage specimens.
Colony characteristics
- Smooth, with yellow or orange scotochromogenic colonies. Even though they are scotochromogenic pigment is intensified by growing in continuous light.
Physiology
- Growth on Löwenstein-Jensen medium and Middlebrook 7H10 agar within 7 or more days at 37°C (optimal 25°C).
- Does not grow in the presence of ethambutol (1 mg/l), isoniazid (10 mg/l) and sodium chloride (5%).
Differential characteristics
- A commercial hybridisation assay (AccuProbe) to identify M. gordonae exists.
- Intraspecies variability in 16S rDNA sequences
Pathogenesis
- Rarely if ever implicated in disease processes unless patients are immunocompromised.
- Biosafety level 1
Type Strain
Strain ATCC 14470 = CCUG 21801 = CCUG 21811 = CIP 104529 = DSM 44160 = JCM 6382 = NCTC 10267.
References
- Bojalil et al. 1962. Adansonian classification of mycobacteria. Journal of General Microbiology, 28, 333-346.