Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium llatzerense Gomila et al. 2008.
Acid-fast, irregular rods, with frequent V forms during cell division. Gram-positive.
Does not form endospores or conidiospores.
Colonies are non-pigmented and grow in 3-4 days at 22-30 ºC incubation
temperature. No growth at 37 ºC. Grows well on R2A medium, 5% sheep blood agar,
Middlebrook 7H10 agar and Lowenstein-Jensen slants. No growth on MacConkey
agar without crystal violet or in 5% w/v NaCl media. Aerobic.
Isolated from a pure water distribution system of a haemodialysis unit in the Hospital Son Llatzer, Mallorca, Spain.
Susceptible to ciprofloxacin, clarithromycin and minocycline. Resistant to cefotaxime, ceftazidime, metronidazole and penicillin.
- Gomila M, Ramirez A, Gasco J, Lalucat J. Mycobacterium llatzerense sp. nov., a facultatively autotrophic, hydrogen-oxidizing
bacterium isolated from haemodialysis water. Int J Syst Evol Microbiol 2008; 58:2769-2773.
Positive results for alkaline phosphatase, esculin hydrolysis, Voges-Proskauer test, and Tween 80 hydrolysis.
Negative results for arginine dihydrolase, semiquantitative catalase test, thermostable catalase, gelatinase, beta-glucuronidase,
alpha-glucosidase, N-acetyl-beta-glucosaminidase, beta-galactosidase, H2S production, indole production, nitrate reduction, lysine
decarboxylase, ornithine decarboxylase, pyrazinamidase, pyrrolidonyl arylamidase, tryptophan deaminase, and urease.
No utilization of citrate.
(c) Costin Stoica