The taxonomic status of a soil isolate. provisionally assigned to the genus
Nocardia, was established following a polyphasic study. An almost complete
sequence of the 16S rDNA of the strain was determined and aligned with ava
ilable sequences for nocardiae and phylogenetic trees were inferred using f
our tree-making algorithms. The organism was associated consistently with t
he type strains of Nocardia brasiliensis and Nocardia farcinica in the neig
hbour-joining analysis, albeit with low bootstrap values. It was also found
to have chemotaxonomic and morphological properties consistent with its as
signment to the genus Nocardia. The organism was readily separated from rep
resentatives of other Nocardia species by a broad range of phenotypic prope
rties. The name proposed for the novel species is Nocardia beijingensis sp.
nov. The type strain is AS4.1521(T) (= IFO 16342(T) = JCM 10666(T)).