Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium eburneum Nouioui et al. 2017.
Acid-alcohol-fast rods. Gram-positive. Non-motile. Non-sporeforming.
Colonies are rough, ivory-coloured on Middelbrook 7H10 and peptone meat extract
glycerol agar after 7 days at 37 ºC in both the dark and light. Grows from 28 to 37 ºC,
optimally at 37 ºC, from pH 7 to 8, optimally at pH 7.0. No growth at 10, 25 or 45 ºC.
Aerobic. No growth in 1% NaCl.
Isolated from sputum of a patient in Switzerland.
Resistant to aztreonam, carbenicillin, capreomycin, cephalothin, chloramphenicol, cloxacillin, colistin, demeclocycline, nafcillin,
ofloxacin, oxacillin, paromomycin, penicillin G, sisomicin, amikacin, cephalothin, chlortetracycline, carbenicillin, spiramycin,
tobramycin, and tetracycline. Susceptible to fusidic acid, guanidine hydrochloride, lincomycin, lithium chloride, nalidixic acid, niaproof,
tetrazolium blue, troleandomycin, L-aspartic-beta-hydroxamate, 2,4-diamino-6,7-diisopropylpteridine, 5-fluoroorotic acid, polymyxin B,
DL-serine hydroxamate, spectinomycin, sulfamethazine, and sulfamethoxazol.
- Nouioui I, Carro L, Teramoto K, Igual JM, Jando M, Del Carmen Montero-Calasanz M, Sutcliffe I, Sangal V, Goodfellow M, Klenk HP.
Mycobacterium eburneum sp. nov., a non-chromogenic, fast-growing strain isolated from sputum. Int J Syst Evol Microbiol 2017;
Positive results for acid and alkaline phosphatase, arylsulfatase (3 and 20 days), beta-glucosidase, catalase, thermostable catalase
(68 ºC), esterase lipase (C8), esterase (C4), lipase (C14), leucine arylamidase, naphthol-AS-BI-phosphophydrolase, urease, valine
arylamidase, Tween 80 hydrolysis, and tellurite reduction.
Can utilize cellobiose, D-fructose, D- and L-fucose, D-galactose, D-glucose-6-phosphate, myo-inositol, N-acetyl-D-glucosamine,
maltose, methyl beta-D-glucoside, stachyose, sucrose, turanose, L-alanine, L-glutamic acid, alpha-keto-butyric acid, D-gluconic acid,
D-glucuronic acid, D-saccharic acid, acetic acid, butyric acid, beta-hydroxy-butyric acid, dodecyltrimethyl ammonium bromide,
D-fructose-6-phosphate, D-glucose, glycerol, alpha-keto-glutaric acid, propionate, D-salicin, trehalose and Tween 40.
Negative results for alpha-chymotrypsin, niacin accumulation, and nitrate reduction.
No utilization of dextrin, glucuronamide, raffinose, D-sorbitol, D-serine, acetoacetic acid, citric acid, D- and L-malic acid, mucic acid,
aspartic acid, D-arabitol, L-arginine, D-aspartic acid, L-galactonic acid-g-lactone, N-acetyl-D-galactosamine, beta-gentiobiose, gelatin,
3-O-methyl-D-glucose, glycine-proline, L-histidine, inosine, L-lactic acid, lactose, D-lactic acid methyl ester, D-mannitol, D-mannose,
melibiose, L-pyroglutamic acid, N-acetyl-beta-D-mannosamine, N-acetyl-neuraminic acid, pectin, p-hydroxy-phenylacetic acid,
L-rhamnose and L-serine
(c) Costin Stoica