Mycobacterium agri

Mycobacterium agri

Description
Microscopy
 * Gram-positive, nonmotile and acid-fast rods (3-7µm 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 (0.5mg/ml) and thiophene-2-carboxylic acid hydrazide (1mg/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.