Streptomyces nanhaiensis sp nov., a marine streptomycete isolated from a deep-sea sediment

A novel aerobic streptomycete, strain SCSIO 01248(T), was isolated from a sample of deep-sea sediment collected from the northern South China Sea, at a depth of 1632 m. This isolate formed yellow white substrate mycelium and grey white aerial hyphae. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain SCSIO 01248(T) was most closely related to Streptomyces radiopugnans R97(T) (98.8 % sequence similarity), S. macrosporus NBRC 14748(T) (97.5%) and S. megasporus NBRC 14749(T) (973%). The novel strain could, however, be readily differentiated from S. radiopugnans DSM 41901(T) on the basis of some physiological and cellular chemical characteristics; the level of DNA DNA relatedness between these two strains was only 40%. Based on phylogenetic and phenotypic evidence, strain SCSIO 012481 represents a novel species, for which the name Streptomyces nanhaiensis sp. nov. is proposed. The type strain is SCSIO 01248(T) (=DSM 41926(T) =KCTC 19401(T) =CCTCC AA 208007(T)).