title: Mycobacterium komossense
text: # Mycobacterium komossense
  
  Mycobacterium komossense is a species of the phylum Actinomycetota (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus Mycobacterium.
  
  ## Description
  
  Gram-positive, nonmotile, short to moderately long and acid-fast rods.
  
  Colony characteristics
  
  * Eugonic, smooth, glistening and yellow-beige pigmented colonies. On Middlebrook 7H10 agar 0.5-2mm in diameter with entire margins.
  
  Physiology
  
  * Growth on Löwenstein-Jensen media and Middlebrook 7H10 agar at temperatures between 22 °C-37 °C in less than 7 days.
  * Optimal growth at 31 °C, no growth at 45 °C.
  
  Differential characteristics
  
  * Uniqueness of species supported by antigenic analysis (immunodiffusion) and specific lipid patterns.
  * A numerical taxonomy comparison showed close relationship to Mycobacterium aichiense.
  
  ## Pathogenesis
  
  * Not known to be pathogenic in animals or humans.
  * Biosafety level 1
  
  ## Type strain
  
  * First isolated from intact sphagnum vegetation in the Komosse sphagnum bog in southern Sweden and Atlantic coastal area of Norway.
  
  Strain Ko 2 = ATCC 33013 = CIP 105293 = DSM 44078 = HAMBI 2279 = HAMBI 2280 = JCM 12408.
  
  