Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium stephanolepidis Fukano et al. 2017.
Colonies can be either rough or smooth, and not pigmentated. Growth is observed
following incubation for 3-5 days at 30 ºC on Middlebrook 7H11 agar or egg slants.
Grows at 15-35 ºC; no growth at 4, 10, 37 or 40 ºC. No growth on Middlebrook 7H11
agar supplemented with picric acid. Very weak growth in the presence of 5% NaCl.
Isolated from thread-sail filefish (Stephanolepis cirrhifer) and black scraper (Thamnaconus modestus), in Japan.
Susceptible to clarithromycin (0.25 µg/ml), doxycycline (1 µg/ml) and ciprofloxacin (0.5-1 µg/ml); intermediate and/or resistant to
rifampicin, streptomycin, kanamycin and amikacin.
- Fukano H, Wada S, Kurata O, Katayama K, Fujiwara N, Hoshino Y. Mycobacterium stephanolepidis sp. nov., a rapidly growing
species related to Mycobacterium chelonae, isolated from marine teleost fish, Stephanolepis cirrhifer. Int J Syst Evol Microbiol
Positive results for thermo-stable catalase (68 ºC) and urease.
Negative results for arylsulfatase (3 days), semi-quantitative catalase, nitrate reductase, and Tween 80 hydrolysis.
Variable results for iron uptake.
(c) Costin Stoica