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Rhodococcus gordoniae sp. nov., an actinomycete isolated from clinical material and phenol-contaminated soil

Lookup NU author(s): Amanda Jones, Dr John Perry, Professor Michael Goodfellow


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The taxonomic relationships of two actinomycetes provisionally assigned to the genus Rhodococcus were determined using a polyphasic taxonomic approach. The generic assignment was confirmed by 16S rRNA gene similarity data, as the organisms, strains MTCC 1534 and W 4937T, were shown to belong to the Rhodococcus rhodochrous subclade. These organisms had phenotypic properties typical of rhodococci; they were aerobic, Gram-positive, weakly acid-fast actinomycetes that showed an elementary branching-rod-coccus growth cycle and contained meso-diaminopimelic acid, arabinose and galactose in whole-organism hydrolysates, N-glycolated muramic acid residues, dehydrogenated menaquinones with eight isoprene units as the predominant isoprenologue and mycolic acids that co-migrated with those extracted from the type strain of R. rhodochrous. The strains had identical phenotypic profiles and belong to the same genomic species, albeit one distinguished from Rhodococcus pyridinivorans, with which they formed a distinct phyletic line. They were also distinguished from representatives of all of the species classified in the R. rhodochrous 16S rRNA gene tree using a set of phenotypic features. The genotypic and phenotypic data show that the strains merit recognition as a novel species of Rhodococcus. The name proposed is Rhodococcus gordoniae sp. nov., with the type strain W 4937T (=DSM 44689T=NCTC 13296T). © 2004 IUMS.

Publication metadata

Author(s): Jones AL, Brown JM, Mishra V, Perry JD, Steigerwalt AG, Goodfellow M

Publication type: Article

Publication status: Published

Journal: International Journal of Systematic and Evolutionary Microbiology

Year: 2004

Volume: 54

Issue: 2

Pages: 407-411

ISSN (print): 1466-5026

ISSN (electronic): 1070-6259

Publisher: Society for General Microbiology


DOI: 10.1099/ijs.0.02756-0

PubMed id: 15023952


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