Phenotypic and molecular characterization of clinical isolates of Mycobacterium elephantis from human specimens.

Journal of Clinical Microbiology
Christine TurenneAmin Kabani

Abstract

Eleven strains of a rapidly growing mycobacterium were isolated from patient specimens originating from various regions of the province of Ontario, Canada, over a 2-year period. Unique high-performance liquid chromatography (HPLC) and PCR-restriction enzyme pattern analysis (PRA) profiles initially suggested a new Mycobacterium species, while sequencing of the 16S rRNA gene revealed a sequence match with Mycobacterium sp. strain MCRO 17 (GenBank accession no. X93028), an isolate determined to be unique which is to date uncharacterized, and also a close similarity to M. elephantis (GenBank accession no. AJ010747), with six base pair variations. A complete biochemical profile of these isolates revealed a species of mycobacteria with phenotypic characteristics similar to those of M. flavescens. HPLC, PRA, and 16S rRNA sequencing of strain M. elephantis DSM 44368(T) and result comparisons with the clinical isolates revealed that these strains were in fact M. elephantis, a newly described species isolated from an elephant. All strains were isolated from human samples, 10 from sputum and 1 from an axillary lymph node.

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Citations

Oct 6, 2006·Journal of Clinical Microbiology·Toïdi AdékambiMichel Drancourt
Mar 8, 2003·Journal of Clinical Microbiology·D PottersS Lauwers
Sep 20, 2011·Enfermedades infecciosas y microbiología clínica·Óscar EsparciaPere Coll
Jul 13, 2005·Journal of Microbiological Methods·Y AkselbandP McGrath
Jun 27, 2015·Genome Announcements·Alexander L GreningerSteve Miller
Jun 1, 2014·International Journal of Mycobacteriology·Ines JoaoLuisa Jordao
Dec 8, 2016·International Journal of Systematic and Evolutionary Microbiology·Nomakorinte GcebeAnita Michel
Mar 16, 2018·International Journal of Systematic and Evolutionary Microbiology·Nomakorinte GcebeAnita L Michel
Jun 24, 2016·The Open Microbiology Journal·Nyasha Chin'ombePasipanodya Nziramasanga
Oct 26, 2012·Clinical Chemistry and Laboratory Medicine : CCLM·Frederic BallesterJordi Camps
Aug 12, 2021·SAGE Open Medical Case Reports·Brett D EdwardsJustin C Chia

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