Streptomyces spiramenti sp. nov., isolated from a deep-sea microbial mat

Strain 5675061(T) was isolated from a deep-sea microbial mat near hydrothermal vents within the Axial Seamount caldera on the Juan de Fuca Ridge (NE Pacific Ocean) and was taxonomically evaluated using a polyphasic approach. Morphological and chemotaxonomic properties are consistent with characteristics of the genus Streptomyces: aerobic Gram-stain-positive filaments that form spores, l,l-diaminopimelic acid in whole-cell hydrolysates, and iso-C-16:0 as the major fatty acid. Phylogenetic analysis, genomic, and biochemical comparisons show close evolutionary relatedness to Streptomyces lonarensis NCL716(T), S. bohaiensis 11A07(T), and S. otsuchiensis OTB305(T) but genomic relatedness indices identify strain 5675061(T) as a distinct species. Based on a polyphasic characterization, identifying differences in genomic and taxonomic data, strain 5675061(T) represents a novel species, for which the name Streptomyces spiramenti sp. nov. is proposed. The type strain is 5675061(T) (=LMG 31896(T) = DSM 111793(T)).