Mycobacterium gadium

Mycobacterium gadium 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.

Mycobacterium gadium
Scientific classification
Kingdom:
Bacteria
Phylum:
Actinobacteria
Order:
Actinomycetales
Suborder:
Corynebacterineae
Family:
Mycobacteriaceae
Genus:
Mycobacterium
Species:
M. gadium
Binomial name
Mycobacterium gadium
Casal and Calero 1974, ATCC 27726

Description

Short gram-positive, nonmotile and acid-fast rods.

Colony characteristics

  • Yellow-orange, scotochromogenic colonies, but the pigmentation deepens with exposure to light. Older cultures are more dry and rough.

Physiology

  • Rapid growth on Löwenstein-Jensen medium at 28 °C and 37 °C, but not at 45 °C.

Pathogenesis

Type strain

First isolated from known tuberculous patient from Cadiz, Spain. Strain ATCC 27726 = CCUG 37515 = CIP 105388 = DSM 44077 = HAMBI 2274 = JCM 12688 = NCTC 10942.

References
    • Casal,M., and J. Calero. 1974. Mycobacterium gadium sp. nov. A new species of rapid-growing scotochromogenic mycobacteria. Tubercle, 55, 299-308.] PMID 4220083


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