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Mycobacterium canariasense

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Kingdom
  
Bacteria

Order
  
Actinomycetales

Family
  
Mycobacteriaceae

Rank
  
Species

Phylum
  
Actinobacteria

Suborder
  
Corynebacterineae

Genus
  
Mycobacterium

Scientific name
  
Mycobacterium canariasense

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Mycobacterium canariasense is a rapidly growing, non-pigmented mycobacterium first isolated from blood samples obtained from 17 patients with febrile syndrome. Etymology: canariasense; referring to the Latin adjective of the Spanish islands where all strains were isolated.

Contents

Description

Microscopy

  • Weakly acid-fast rods.

    • Colony characteristics

  • Visible growth appears in 2–3 days as smooth, moist, shiny, non-pigmented colonies on Löwenstein-Jensen medium. Growth later develops a more yellowish, smooth, moist and shiny appearance.

    • Physiology

  • Growth occurs at 30 and 37C, but not at 22, 42 or 45C.
  • Grows on MacConkey agar without crystal violet, but does not grow in the presence

    • of 5% NaCl.

  • Positive for arylsulfatase activity (3 days) and Tween 80 hydrolysis.
  • Produces a low level of heatstable catalase and is negative for reduction of nitrates.

    • Differential characteristics

  • The 16S rRNA and hsp65 gene sequences of M. canariasense are unique.
  • Most closely related to Mycobacterium diernhoferi and Mycobacterium mucogenicum.

    • Pathogenesis

  • First isolated from blood samples obtained from 17 patients with febrile syndrome in the Canary Islands.

    • Type strain

  • Strain 502329T =CIP 107998T =CCUG 47953T

    • References

    Mycobacterium canariasense Wikipedia
    (Text) CC BY-SA


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