Mycobacterium gastri

From Wikipedia, the free encyclopedia

The introduction to this article provides insufficient context for those unfamiliar with the subject.
Please help improve the article with a good introductory style.

Mycobacterium gastri

Scientific classification

Kingdom:	Bacteria
Phylum:	Actinobacteria
Order:	Actinomycetales
Suborder:	Corynebacterineae
Family:	Mycobacteriaceae
Genus:	Mycobacterium
Species:	M. gastri

Binomial name

Mycobacterium gastri
Wayne 1966, ATCC 15754

Mycobacterium gastri

1 Description
2 Pathogenesis
3 Type Strain
4 References

[edit] Description

Moderately long to long, Gram-positive, 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

Closely related to M. kansasii
M. gastri and M. kansasii share an identical 16S rDNA sequence. Species differentiation is possible by differences in the ITS and hsp65 sequences.
M. kansasii produces a photochromogenic yellow pigment.
AccuProbes for M. kansasii are negative.

[edit] Pathogenesis

Casual resident of human stomachs, but not considered an etiologic agent of disease.
Biosafety level 1

[edit] Type Strain

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

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

[edit] References

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