Abstract
The taxonomic position of an unknown actinomycete isolated from a sand dune soil sample collected at Borg El-Arab in Egypt was established using a combination of genotypic and phenotypic data. Isolate S136(T) had chemotaxonomic and morphological properties consistent with its classification in the genus Nonomuraea and formed a distinct phyletic line in the Nonomuraea 16S rRNA gene tree. It was most closely related to the type strains of Nonomuraea helvata, Nonomuraea kuesteri and Nonomuraea turkmeniaca, sharing 16S rRNA gene similarities with these species of 97.1, 97.2 and 97.3%, respectively. The organism was distinguished from representatives of validly described Nonomuraea species using a range of phenotypic properties. It is apparent that the isolate belongs to a novel Nonomuraea species. The name proposed for this taxon is Nonomuraea aegyptia sp. nov., the type strain is S136(T) (=CGMCC 4.2054(T) = DSM 45082(T)).
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