Girish Mahajan (Editor)

Mycobacterium conspicuum

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Kingdom
  
Bacteria

Order
  
Actinomycetales

Family
  
Mycobacteriaceae

Scientific name
  
Mycobacterium conspicuum

Phylum
  
Actinobacteria

Suborder
  
Corynebacterineae

Genus
  
Mycobacterium

Rank
  
Species

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Mycobacterium conspicuum 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.

Contents

Description

Gram-positive and nonmotile acid-fast coccobacilli. Does not form spores, capsules or aerial hyphae.

Colony characteristics

  • Dysgonic and nonphotochromogenic, pale yellow colonies on Löwenstein-Jensen agar.

    • Physiology

  • Slow growth on Löwenstein-Jensen medium at temperatures between 22°C and 31°C after 2–3 weeks.
  • Susceptible to ethambutol, rifampin, streptomycin, resistant to pyrazinamide.
  • Synthesis of α- and keto-mycolates and wax esters.
  • no tolerance to 5% NaCl, positive for Tween 80 hydrolysis and for 10-day-arylsulfatase. Negative for production of nicotinic acid, acetamidase, benzamidase, urease, isonicotinamidase, nicotinamidase, pyrazinamidase, succinidamidase, nitrate reductase and tellurite reduction.

    • Pathogenesis

    Opportunistic pathogen, disseminated mycobacteriosis, Biosafety level 2.

    Type Strain

    First isolated from two male HIV infected patients in Germany. Strain 3895/92 = ATCC 700090 = CIP 105165 = DSM 44136.

    References

    Mycobacterium conspicuum Wikipedia
    (Text) CC BY-SA