Mycobacterium gordonae

Mycobacterium gordonae is a species of Mycobacterium named for Ruth E. Gordon.[1] It 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.

Mycobacterium gordonae
Scientific classification
Kingdom:
Bacteria
Phylum:
Actinobacteria
Order:
Actinomycetales
Suborder:
Corynebacterineae
Family:
Mycobacteriaceae
Genus:
Mycobacterium
Species:
M. gordonae
Binomial name
Mycobacterium gordonae
Bojalil et al. 1962, ATCC 14470

Description

Gram-positive, nonmotile and moderate to long acid-fast rods.

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%).
  • Some strains can grow using carbon monoxide as a carbon and energy source.[2]

Differential characteristics

  • A commercial hybridisation assay (AccuProbe) to identify M. gordonae exists.[3]
  • Intraspecies variability in 16S rDNA sequences

Pathogenesis
  • Rarely if ever implicated in disease processes even if patients are immunocompromised. Widely distributed in environment and usually a contaminant in laboratory specimens.[4]
  • Biosafety level 2

Type strain

Strain ATCC 14470 = CCUG 21801 = CCUG 21811 = CIP 104529 = DSM 44160 = JCM 6382 = NCTC 10267.

References
  1. Mycobacterium gordonae at eMedicine
  2. King GM (December 2003). "Uptake of carbon monoxide and hydrogen at environmentally relevant concentrations by mycobacteria". Applied and Environmental Microbiology. 69 (12): 7266–72. doi:10.1128/aem.69.12.7266-7272.2003. PMC 310020. PMID 14660375.
  3. Reisner BS, Gatson AM, Woods GL (December 1994). "Use of Gen-Probe AccuProbes to identify Mycobacterium avium complex, Mycobacterium tuberculosis complex, Mycobacterium kansasii, and Mycobacterium gordonae directly from BACTEC TB broth cultures". Journal of Clinical Microbiology. 32 (12): 2995–8. PMC 264213. PMID 7883888.
  4. Kasperbauer, Shannon (July 1, 2017). "NTM: Types". National Jewish Health.

Further reading
  • Bojalil LF, Cerbon J, Trujillo A (June 1962). "Adansonian classification of mycobacteria". Journal of General Microbiology. 28 (2): 333–46. doi:10.1099/00221287-28-2-333. PMID 13870716.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.