%0 Journal Article %A Hashemi Shahraki, Abdolrazagh %A Trovato, Alberto %A Droz, Sara %A Haidarieh, Parvin %A Borroni, Emanuele %A Mirsaeidi, Mehdi %A Mannino, Roberta %A Hashemzadeh, Mohamad %A Mariottini, Alessandro %A Cirillo, Daniela Maria %A Tortoli, Enrico %T Mycobacterium aquaticum sp. nov., a rapidly growing species isolated from haemodialysis water %D 2017 %J International Journal of Systematic and Evolutionary Microbiology, %V 67 %N 9 %P 3279-3282 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.002103 %K Mycobacterium fortuitum %K average nucleotide identity %K Mycobacterium brisbanense %K Mycobacterium aquaticum %I Microbiology Society, %X The characterization of five Iranian isolates, four from hospital haemodialysis water and one from the sputum of a patient, led to the detection of a novel mycobacterium species. The strains were characterized by mucoid colonies developing in 3–5 days at temperatures ranging from 25 to 37 °C. The biochemical test pattern was unremarkable while the HPLC profile of mycolic acids resembled that of Mycobacterium fortuitum . The sequences of three major housekeeping genes (16S rRNA, hsp65 and rpoB) were unique and differed from those of any other mycobacterium. Mycobacterium brisbanense , which is the species that shared the highest 16S rRNA gene sequence similarity (99.03 %), was distinct, as shown by the average nucleotide identity and by the genome to genome distance values (91.05 and 43.10 %, respectively). The strains are thus considered to represent a novel species of the genus Mycobacterium, for which the name Mycobacterium aquaticum sp. nov. is proposed. The type strain is RW6T (=DSM 104277T=CIP111198T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002103