Nocardia puris sp. nov.
DNA, Bacterial
0301 basic medicine
0303 health sciences
Molecular Sequence Data
Nocardia Infections
DNA, Ribosomal
Abscess
Nocardia
RNA, Bacterial
03 medical and health sciences
Phenotype
RNA, Ribosomal, 16S
Humans
Phylogeny
DOI:
10.1099/ijs.0.02593-0
Publication Date:
2003-09-16T17:32:36Z
AUTHORS (4)
ABSTRACT
A bacterial isolate (IMMIB R-145(T)) from a human abscess was subjected to a polyphasic taxonomic study. Chemotaxonomic investigations revealed the isolate to have cell wall chemotype IV and mycolic acids consistent with characteristics of the genus NOCARDIA: Comparative 16S rRNA gene sequencing showed that the isolate constituted a distinct subline within the genus Nocardia, displaying greater than 1.7 % sequence divergence with established species. However, a DNA-DNA hybridization study demonstrated unambiguously that the isolate was genealogically distinct from closely related species, namely, Nocardia abscessus, Nocardia cyriacigeorgica and Nocardia farcinica, with which it showed high levels of 16S rDNA sequence similarity (97.8, 97.9 and 98.3 %, respectively). Based on phenotypic and phylogenetic data, it is proposed that this isolate be classified as a new species of the genus Nocardia, for which the name Nocardia puris (type strain IMMIB R-145(T)=DSM 44599(T)=NRRL B-24204(T)) is proposed.
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