| Mycobacterium barrassiae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium barrassiae Adekambi et al. 2006.
Mycobacterium, Mycobacterium barrassiae Adekambi et al. 2006.
Acid-fast rods. Gram-positive.
Colonies are nonpigmented and appear on 5% sheep blood agar, Middelbrook 7H10
agar, and egg-based Lowenstein-Jensen slants in 3 to 6 days at temperatures
between 25 and 42 ºC. Can grow in 5% NaCl media.
agar, and egg-based Lowenstein-Jensen slants in 3 to 6 days at temperatures
between 25 and 42 ºC. Can grow in 5% NaCl media.
Isolated from a bronchial aspirate.
Susceptible in vitro to imipenem, minocycline, doxycycline, clarithromycin, azithromycin, amikacin, ciprofloxacin, ofloxacin, and
sparfloxacin. Resistant to penicillin, amoxicillin, and erythromycin.
Susceptible in vitro to imipenem, minocycline, doxycycline, clarithromycin, azithromycin, amikacin, ciprofloxacin, ofloxacin, and
sparfloxacin. Resistant to penicillin, amoxicillin, and erythromycin.
Associated with chronic pneumonia.
- Adekambi T, Raoult D, Drancourt M. Mycobacterium barrassiae sp. nov., a Mycobacterium moriokaense group species
associated with chronic pneumonia. J Clin Microbiol 2006; 44:3493-3498.
Positive results for acetoin production, beta-lactamase, nitrate reduction, iron uptake, pyrazinamidase, and urea hydrolysis.
Can utilize as sole carbon source inositol, sorbitol, and L-arabinose.
Negative results for arylsulfatase after 3 days, alkaline phosphatase, beta-galactosidase, and alpha-glucosidase.
No utilization as sole carbon source of citrate and L-rhamnose.
Variable results for pyrrolidonylarylamidase.
Can utilize as sole carbon source inositol, sorbitol, and L-arabinose.
Negative results for arylsulfatase after 3 days, alkaline phosphatase, beta-galactosidase, and alpha-glucosidase.
No utilization as sole carbon source of citrate and L-rhamnose.
Variable results for pyrrolidonylarylamidase.
(c) Costin Stoica
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