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Journal of Clinical Microbiology, May 1996, 1100-1107, Vol 34, No. 5
B Springer, WK Wu, T Bodmer, G Haase, GE Pfyffer, RM Kroppenstedt, KH Schroder, S Emler, JO Kilburn, P Kirschner, A Telenti, MB Coyle and EC Bottger
A distinct group of slowly growing mycobacteria was identified on the basis
of growth characteristics, biochemical and lipid profiles, and nucleic acid
analyses. The isolates showed growth at 22 to 37 degrees C, yellow
pigmentation, and negative tests for Tween 80 hydrolysis, nicotinic acid,
nitrate reductase, and urease; tests for arylsulfatase, pyrazinamidase, and
heat-stable catalase were variable. Analysis of cellular fatty acids by
gas-liquid chromatography and mycolic acids by thin-layer chromatography
and high-performance liquid chromatography indicated a distinctive pattern
which was unlike those of other species. Determination of the 16S rRNA gene
sequence showed a unique sequence closely related to Mycobacterium simiae
and M. genavense. On the basis of DNA homology studies, we suggest that
these organisms are representatives of a novel species, for which the name
M. lentiflavum sp. nov. is proposed.
Copyright © 1996 by the American Society for Microbiology. All rights reserved.
Isolation and characterization of a unique group of slowly growing mycobacteria: description of Mycobacterium lentiflavum sp. nov
Institut fur Medizinische Mikrobiologie, Medizinische Hochschule Hannover, Germany.
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