- International Journal of Systematic and Evolutionary Microbiology
- Volume 43, Issue 3
f Mycobacterium celatum sp. nov.
- Authors: W. R. Butler*, Steven P. O'connor, M. A. Yakrus, R. W. Smithwick, B. B. Plikaytis, C. W. Moss, M. M. Floyd, C. L. Woodley, J. O. Kilburn, F. S. Vadney, W. M. Gross
- *Corresponding author.
- First Published Online: 01 July 1993, International Journal of Systematic and Evolutionary Microbiology 43: 539-548, doi: 10.1099/00207713-43-3-539
- Subject: Original Papers Relating To Systematic Bacteriology
- Issue Published:
A new slowly growing nonphotochromogenic Mycobacterium species of clinical importance is described. The biochemical characteristics of this organism were similar to those of Mycobacterium xenopi and members of the Mycobacterium avium complex. However, none of the strains reacted with commercially available genetic probes for the M. avium complex. The strains were resistant to most antituberculosis drugs. Multilocus enzyme electrophoresis revealed two original electrophoretic types, which was suggestive of new species. The strains contained α-, keto-, and dicarboxylic mycolates, as determined by thin-layer chromatography. A mycolic acid analysis by high-performance liquid chromatography revealed a chromatographic pattern similar to that of M. xenopi, but distinct from the patterns of previously described Mycobacterium species. Hexadecanoic and tuberculostearic acids were identified as the major cell wall fatty acids by gas-liquid chromatographic analysis; hexacosanoic acid was the major mycolic acid cleavage product, and 2-eicosanol was the major alcohol. Evaluation of the 16S rRNA sequence confirmed the phylogenetic position of the organism among the slowly growing Mycobacterium species. Cultures representing this new species have been deposited in the American Type Culture Collection as strains ATCC 51130 and ATCC 51131T (T = type strain). The name Mycobacterium celatum is proposed.
Copyright © 1993 International Union of Microbiological Societies | Published by the Microbiology Society
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