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Int J Syst Evol Microbiol 54 (2004), 1459-1463; DOI  10.1099/ijs.0.02938-0
© 2004 International Union of Microbiological Societies

Mycobacterium psychrotolerans sp. nov., isolated from pond water near a uranium mine

Martha E. Trujillo1, Encarna Velázquez1, Reiner M. Kroppenstedt2, Peter Schumann2, Raúl Rivas1, Pedro F. Mateos1 and Eustoquio Martínez-Molina1

1 Departamento de Microbiología y Genética, Edificio Departamental, Lab. 209, Campus Miguel de Unamuno, Universidad de Salamanca, Spain
2 DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg 1b, 38124 Braunschweig, Germany

Correspondence
Martha E. Trujillo
mett{at}usal.es

An acid-fast, rapidly growing, psychrotolerant short rod was isolated from pond water near a uranium mine. Phylogenetic analysis of the 16S rRNA gene sequence grouped this strain with the rapidly growing mycobacteria. The 16S rRNA gene sequence of isolate WA101T showed highest similarity to that of Mycobacterium sphagni DSM 44076T; however, DNA–DNA relatedness between the two strains was less than 30 %. Chemotaxonomic analyses, which included fatty acid and mycolic acid patterns, confirmed the classification of strain WA101T in the genus Mycobacterium. Physiological data, including antibiotic resistance, NaCl tolerance, carbon sources, temperature growth range and enzyme activities, were also determined. Based on the genotypic and phenotypic results it is proposed that isolate WA101T represents a novel Mycobacterium species. The name Mycobacterium psychrotolerans sp. nov. is proposed, with type strain WA101T (=DSM 44697T=LMG 21953T).

Published online ahead of print on 20 February 2004 as DOI 10.1099/ijs.0.02938-0.

The GenBank accession number for the 16S rRNA gene sequence of strain WA101T is AJ534886.

A least-squares phylogenetic tree derived from analysis of 16S rRNA gene sequences of selected Mycobacterium species is available as supplementary material in IJSEM Online.




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M. E. Trujillo, C. Fernandez-Molinero, E. Velazquez, R. M. Kroppenstedt, P. Schumann, P. F. Mateos, and E. Martinez-Molina
Micromonospora mirobrigensis sp. nov.
Int J Syst Evol Microbiol, March 1, 2005; 55(2): 877 - 880.
[Abstract] [Full Text] [PDF]


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