Mycobacterium gastri

Mycobacterium gastri 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.

Mycobacterium gastri
Scientific classification
Domain:
Bacteria
Phylum:
Class:
Order:
Family:
Genus:
Species:
M. gastri
Binomial name
Mycobacterium gastri
Wayne 1966, ATCC 15754

Description

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

Colony characteristics

  • Nonchromogenic, smooth to rough, white colonies on Löwenstein-Jensen medium and smooth or somewhat granular on Middlebrook 7H10 agar.

Physiology

  • Growth on Löwenstein-Jensen medium or on Middlebrook 7H10 agar at 37 °C, (temperature range 25 °C-40 °C), within 7 or more days.
  • Does not grow in the presence of ethambutol or isoniazid.

Differential characteristics

Pathogenesis

  • Casual resident of human stomachs, but not considered a cause of disease.
  • Biosafety level 1

Type strain

  • First isolated from human gastric specimen. Also found in soil.

Strain ATCC 15754 = CCUG 20995 = CIP 104530 = DSM 43505 = JCM 12407.

References

    • Wayne, L. 1966. Classification and identification of mycobacteria. III. Species within Group III. American Review of Respiratory Diseases, 93, 919–928.]


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