- Mycobacterium agri
-
Mycobacterium africanum Scientific classification Kingdom: Bacteria Phylum: Actinobacteria Order: Actinomycetales Suborder: Corynebacterineae Family: Mycobacteriaceae Genus: Mycobacterium Species: M. agri Binomial name Mycobacterium agri
Tsukamura 1981, ATCC 27406Mycobacterium agri
Contents
Description
Microscopy
- Gram-positive, nonmotile and acid-fast rods (3-7 µm long). Frequently join to grow in long threads.
Colony characteristics
- Rough, and nonphotochromogenic colonies.
Physiology
- Rapid growth on egg media at 22-45°C, not at 52°C, in less than 5 days.
- Niacin negative, catalase positive, β-galactosidase usually positive.
- Tween 80 not hydrolysed after 14 days.
- Resistant to 5% NaCl, p-nitrobenzoic acid (0.5 mg/ml) and thiophene-2-carboxylic acid hydrazide (1 mg/l).
Pathogenesis
Not associated with disease.
Distribution
- Found in soil world-wide
Type strain
- Strain 90012 = ATCC 27406 = CCUG 37673 A = CIP 105391 = DSM 44515 = JCM 6377.
References
- Tsukamura,M. 1981. Numerical analysis of rapidly growing, nonphotochromogenic mycobacteria, including Mycobacterium agri (Tsukamura 1972) Tsukamura sp. nov., nom. rev. Int. J. Syst. Bacteriol. 31, 247-258.
Slowly growing
(R1P=photochromogenic;
R2S=scotochromogenic;
R3N=nonchromogenic)Rapidly growing/
Runyon IVM. neoaurum groupF/T groupsM. fortuitum groupM. vaccae groupM. smegmatis groupM. chelonae groupM. elephantis group
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