Mycobacterium monacense sp. nov

Udo Reischl, Holger Melzl, Reiner M. Kroppendstedt, Thomas Miethke, Ludmila Naumann, Allessandro Mariottini, Gianna Mazzarelli, Enrico Tortoli

Research output: Contribution to journalArticlepeer-review


Four bacterial strains were isolated from independent clinical specimens in different countries and their genotypic and phenotypic characters support their classification in a novel species within the genus Mycobacterium. One strain was clearly responsible for a severe, post-traumatic wound infection in a healthy boy. The novel species, for which the name Mycobacterium monacense sp. nov. is proposed, is yellow-pigmented, non-photochromogenic and grows in less than a week on solid medium. Based on phenotypic investigations alone, distinction of these four strains from known scotochromogenic rapidly growing strains is problematic. However, the novel strains differ from any other mycobacterium in each of the molecular species markers investigated: the 16S rRNA gene, the 16S-23S rRNA gene internal transcribed spacer and the hsp65 gene. Of the strains investigated, two different sequevars were detected for the hsp65 region. Phylogenetic analysis revealed that these four strains were most closely related to Mycobacterium doricum. The type strain of Mycobacterium monacense sp. nov. is B9-21-178T (=DSM 44395T=CIP 109237T).

Original languageEnglish
Pages (from-to)2575-2578
Number of pages4
JournalInternational Journal of Systematic and Evolutionary Microbiology
Issue number11
Publication statusPublished - Nov 2006

ASJC Scopus subject areas

  • Microbiology
  • Applied Microbiology and Biotechnology
  • Ecology, Evolution, Behavior and Systematics
  • Immunology


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