Streptomyces apricus sp. nov., isolated from soil

A novel Streptomyces strain, SUN51(T), was isolated from soils sampled in Wisconsin, USA, as part of a Streptomyces biogeography survey. Genome sequencing revealed that this strain had less than 90% average nucleotide identity (ANI) to type species of Streptomyces: SUN51(T) was most closely related to Streptomyces dioscori A217(T) (99.5% 16S rRNA gene identity, 89.4 % ANI). Genome size was estimated at 8.81 Mb, and the genome DNA G+C content was 72mol%. The strain possessed the cellular fatty acids anteiso-C-15:0, iso-C-16:0, 16:1 omega 7c, anteiso-C-17:0, iso-C-14:0 and C-16:0. The predominant menaquinones were MK-9 H4, MK-9 H6 and MK-9 H8. Strain SUN51(T) contained the polar lipids phosphatidic acid, phosphatidyl ethanolamine, phosphatidyl glycerol and diphosphatidyl glycerol. The cell wall contained ll-diaminopimelic acid. The strain could grow on a broad range of carbon sources and tolerate temperatures of up to 40 degrees C. The results of the polyphasic study confirmed that this isolate represents a novel species of the genus Streptomyces, for which the name Streptomyces apricus sp. nov. is proposed. The type strain of this species is SUN51(T) (=NRRL B-65543T=JCM 33736T).