Harman Patil (Editor)

Mycobacterium conceptionense

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Kingdom
  
Bacteria

Order
  
Actinomycetales

Family
  
Mycobacteriaceae

Rank
  
Species

Phylum
  
Actinobacteria

Suborder
  
Corynebacterineae

Genus
  
Mycobacterium

Scientific name
  
Mycobacterium conceptionense

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Mycobacterium conceptionense is a non pigmented rapidly growing mycobacterium was first isolated from wound liquid outflow, bone tissue biopsy, and excised skin tissue from a 31-year-old woman who suffered an accidental open right tibia fracture and prolonged stay in a river. Etymology: conceptionense, pertaining to Hôpital de la Conception, the hospital where the first strain was isolated.

Contents

Description

Microscopy

  • Acid-fast and gram-positive bacilli.

    • Colony characteristics

  • Colonies are non pigmented.

    • Physiology

  • Colonies appear on 5% sheep blood agar, Middlebrook 7H10 agar, and egg-based Lowenstein-Jensen slants in 2 to 5

    • days at temperatures between 25 and 37°C, optimally at 30°C. No growth occurs at 42°C.

  • The type strain is susceptible in vitro to imipenem, minocycline, doxycycline, clarithromycin, erythromycin, azithromycin, amikacin, ciprofloxacin, ofloxacin, sparfloxacin, and amoxicillinclavulanate and resistant to penicillin, amoxicillin, and vancomycin.

    • Differential characteristics

  • M. conceptionense shares 99.7% 16S rRNA (4-bp difference) and 97.0% rpoB gene sequence similarity with Mycobacterium porcinum, the nearest species.

    • Pathogenesis

  • This species is associated with post traumatic osteitis.

    • Type strain

  • Strain D16 = CCUG 50187 = CIP 108544

    • References

    Mycobacterium conceptionense Wikipedia
    (Text) CC BY-SA