Mycobacterium europaeum sp. nov., a scotochromogenic species related to the Mycobacterium simiae complex

Author:

Tortoli Enrico1,Böttger Erik C.2,Fabio Anna3,Falsen Enevold4,Gitti Zoe5,Grottola Antonella3,Klenk Hans-Peter6,Mannino Roberta1,Mariottini Alessandro7,Messinò Massimino3,Pecorari Monica3,Rumpianesi Fabio3

Affiliation:

1. Regional Reference Center for Mycobacteria, Microbiology and Virology Laboratory, Careggi University Hospital, Florence, Italy

2. Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland

3. Laboratory of Microbiology and Virology, Modena University Hospital, Modena, Italy

4. Culture Collection University of Göteborg, Department of Clinical Bacteriology, Göteborg, Sweden

5. Clinical Microbiology Laboratory, Mycobacteriology Department, University Hospital of Crete, Herakleon, Greece

6. DSMZ, German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany

7. Cytogenetics and Genetics Unit, Careggi University Hospital, Florence, Italy

Abstract

Four strains isolated in the last 15 years were revealed to be identical in their 16S rRNA gene sequences to MCRO19, the sequence of which was deposited in GenBank in 1995. In a polyphasic analysis including phenotypic and genotypic features, the five strains (including MCRO19), which had been isolated in four European countries, turned out to represent a unique taxonomic entity. They are scotochromogenic slow growers and are genetically related to the group that included Mycobacterium simiae and 15 other species. The novel species Mycobacterium europaeum sp. nov. is proposed to accommodate these five strains. Strain FI-95228T ( = DSM 45397T  = CCUG 58464T) was chosen as the type strain. In addition, a thorough revision of the phenotypic and genotypic characters of the species related to M. simiae was conducted which leads us to suggest the denomination of the ‘Mycobacterium simiae complex’ for this group.

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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