Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium arcueilense Konjek et al. 2016.
Acid-fast rods. Non-motile. Spores, cords or filaments are not produced.
Colonies are creamy white, rough and non-pigmented. Grows to maturity in 3 days at
30 ºC and in 4 days at 25 ºC and 37 ºC on Middelbrook 7H11 and TSA media. No
growth at 42 ºC. The optimal temperature for growth is 30 ºC. Grows in the presence
of 10% CO2.
Isolated from a water sample collected in the Arcueil aqueduct, France.
Susceptible to amikacin, ciprofloxacin and tigecycline. Resistant to clarithromycin, doxycycline, imipenem and linezolide.
- Konjek J, Souded S, Guerardel Y, Trivelli X, Bernut A, Kremer L, Welte B, Joyeux M, Dubrou S, Euzeby JP, et al. Mycobacterium
lutetiense sp. nov., Mycobacterium montmartrense sp. nov. and Mycobacterium arcueilense sp. nov., members of a novel group of
non-pigmented rapidly growing mycobacteria recovered from a water distribution system. Int J Syst Evol Microbiol 2016; 66:3694-
Positive results for catalase (22 ºC and 65 ºC), arylsulfatase (3 days), nitrate
reduction, Tweens 80 hydrolysis, and urease.
Negative results for niacin production and iron uptake.
(c) Costin Stoica