Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Mycobacterium brumae
Introduction
Mycobacterium brumae is a rapidly growing environmental mycobacterial species identified in 1993. Aside from one 2004 report of a catheter related bloodstream infection no other infections by this organism have been reported. It was first isolated from water, soil and one human sputum sample in Spain.
Description
Description
Microscopy
- Gram-positive, nonmotile, mostly strongly acid-fast rods, 2.0-2.5µm long and 0.3 to 0.5µm wide.
Colony characteristics
- Flat, rough, and undulated yellow, nonphotochromogenic colonies
Physiology
- Rapid growth occurs within 5 days at 25°C, 30°C and 37°C, but not at 45°C on Löwenstein-Jensen medium and Middlebrook 7H10 agar.
- Production of thermostable catalase.
- Positive for β-glucosidase, nitrate reductase, penicillinase, trehalase, urease and iron uptake.
- Tween 80 hydrolysis after 10 days.
- No accumulation of niacin, no degradation of salicylate to catechol.
- No growth on MacConkey agar without crystal violet.
Pathogenesis
Pathogenesis
- In 2004 a patient with breast cancer was reported to have a catheter related bloodstream infection.
Type Strain
Type Strain
- First isolated from water, soil and human sputum samples in Barcelona, Spain.
- Strain CR-270 = ATCC 51384 = CCUG 37586 = CIP 103465 = DSM 44177 = JCM 12273.
References
References
- Luquin (M.), 1993. Mycobacterium brumae sp. nov., a rapidly growing, nonphotochromogenic mycobacterium. Int. J. Syst. Bacteriol., 1993, 43, 405-413.
- Lee, S.A, 2004. Catheter-related bloodstream infection caused by Mycobacterium brumae. J Clin Microbiol. 2004 Nov;42(11):5429-31.
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