Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium goodii Brown et al. 1999.
Previously known as Mycobacterium smegmatis group 2.
Acid-alcohol-fast rods. Gram-positive.
Colonies are smooth to mucoid,off-white- to cream-coloured on Middlebrook
7H10 and trypticase soy agar. Produces visible growth in 2-4 days. Yellow to orange
pigment is produced by most isolates after 10-14 days incubation and growth occurs
at 30, 35 and 45 ºC. Grows on MacConkey agar without crystal violet and in the
presence of 5% NaCl.
Undetermined. May be involved in granulomatous pneumonia, post-traumatic wound infections, especially those following open
fractures and with associated osteomyelitis.
Isolated from sputum, bronchial wash, infected wounds, osteomyelitis, intravenous catheter sepsis, cardiac bypass infection.
Susceptible to amikacin, ethambutol (5 µg/ml), sulfamethoxazole, intermediately susceptible to ciprofloxacin, doxycycline and
tobramycin, variably susceptible to cefmetazole, cefoxitin and clarithromycin. Resistant to isoniazid (10 µg/ml) and rifampin (25 µg/ml).
- Brown BA, Springer B, Steingrube VA, Wilson RW, Pfyffer GE, Garcia MJ, Menendez MC, Rodriguez-Salgado B, Jost KCJ, Chiu SH,
et al. Mycobacterium wolinskyi sp. nov. and Mycobacterium goodii sp. nov., two new rapidly growing species related to
Mycobacterium smegmatis and associated with human wound infections: a cooperative study from the International Working
Group on Mycobacterial Taxonomy. Int J Syst Bacteriol 1999; 49:1493-1511.
- John G. Magee and Alan C. Ward 2012. Family III. Mycobacteriaceae Chester 1897, 63AL in Bergey’s Manual of Systematic
Bacteriology, Volume Five The Actinobacteria, Part A, Michael Goodfellow & al. (editors), 312-375.
Positive results for semiquantitative catalase test (45 mm foam), iron uptake, and nitrate reductase.
Can utilize as sole carbon source L-arabinose, D-glucitol (D-sorbitol), imyo-inositol, D-mannitol, L-rhamnose and D-xylose.
Negative results for arylsulfatase (3 days) and heat-stable catalase (68 ºC).
Few strains (11-33%) can utilize citrate, D-galactose or D-trehalose.
(c) Costin Stoica