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Amycolatopsis nigrescens sp. nov., an actinomycete isolated from a Roman catacomb

AuthorsGroth, Ingrid; Tan, G. Y. A.; González Grau, Juan Miguel ; Laiz Trobajo, L. ; Carlsohn, M. R.; Schütze, B.; Wink, J.; Goodfellow, M.
Issue Date2007
PublisherSociety for General Microbiology
CitationInternational Journal of Systematic and Evolutionary Microbiology 57: 513- 519 (2007)
AbstractThe taxonomic status of two actinomycetes isolated from the wall of a hypogean Roman catacomb was established based on a polyphasic investigation. The organisms were found to have chemical and morphological markers typical of members of the genus Amycolatopsis. They also shared a range of chemical, molecular and phenotypic markers which served to separate them from representatives of recognized Amycolatopsis species. The new isolates formed a branch in the Amycolatopsis 16S rRNA gene sequence tree with Amycolatopsis minnesotensis NRRL B-24435T, but this association was not supported by a particularly high bootstrap value or by the product of the maximum-parsimony tree-making algorithm. The organisms were distinguished readily from closely related Amycolatopsis species based on a combination of phenotypic properties and from all Amycolatopsis strains by their characteristic menaquinone profiles, in which tetra-hydrogenated menaquinones with 11 isoprene units predominated. The combined genotypic and phenotypic data indicate that the isolates merit recognition as representing a novel species of the genus Amycolatopsis. The name proposed for this novel species is Amycolatopsis nigrescens sp. nov., with type strain CSC17Ta-90T (= HKI 0330T = DSM 44992T = NRRL B-24473T).
Identifiersdoi: 10.1099/ijs.0.64602-0
issn: 1466-5026
e-issn: 1466-5034
Appears in Collections:(IRNAS) Artículos
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