Streptosporangium canum sp. nov., isolated from soil Li-Ping Zhang,1,2 Li-Min Zhang1 and Xiu-Min Zhang1,2 Correspondence

An actinomycete strain, designated HBUM 170018T, was isolated from soil from Hebei Province, China, and subjected to a polyphasic taxonomic analysis. This study included morphological and physiological investigations and analyses concerning cell chemistry, genomic DNA G+C content, DNA–DNA hybridization and phylogeny. The data obtained were consistent with the assignment of strain HBUM 170018T to the genus Streptosporangium and were confirmed by the results of 16S rRNA gene sequence analysis. Strain HBUM 170018T can be differentiated from all Streptosporangium species with validly published names with reference to phenotypic characteristics, phylogenetic data and DNA–DNA hybridization results. On the basis of 16S rRNA gene sequencing, DNA–DNA hybridization and phenotypic data, strain HBUM 170018T represents a novel species of the genus Streptosporangium, for which the name Streptosporangium canum sp. nov. is proposed. The type strain is HBUM 170018T (57177T 5DSM 45034T 5CGMCC 4.2126T). The genus Streptosporangium was first described by Couch (1955). In most species of the genus, the aerial mycelium produces spherical sporangia that enclose non-motile sporangiospores. At the time of writing, there are 14 Streptosporangium species with validly published names: Streptosporangium roseum (Couch, 1955), S. amethysto