Streptomyces Seymenliensis Sp. Nov., Isolated from Soil

Abstract

A novel actinomycete, designated strain B1041T, isolated from soil collected from the Tuz (Salt) Lake in the central Anatolia region, in Turkey, was characterised using a polyphasic taxonomic approach. The isolate was found to have chemical and morphological properties typical of the members of the genus Streptomyces and formed a distinct phyletic line in the 16S rRNA gene tree. Strain B1041T was found to be most closely related to Streptomyces plumbiresistens CCNWHX 13-160T (98.46 % sequence similarity), Streptomyces pseudovenezuelae NBRC 12904T (97.81 %), Streptomyces novaecaesareae NBRC 13368T (97.68 %), Streptomyces graminifolii JL-22T (97.60 %), Streptomyces phaeoluteigriseus NRRL ISP-5182T (97.58 %), Streptomyces ciscaucasicus NBRC 12872T (97.53 %) and Streptomyces pratensis ch24T (97.52 %). Sequence similarities with other strains of the genus Streptomyces were lower than 97.5 %. The cell wall of the novel strain was found to contain ll-diaminopimelic acid and the whole cell sugars were identified as galactose, glucose and ribose. The major cellular fatty acids were identified as anteiso C<inf>15:0</inf>, iso C<inf>16:0</inf> and anteiso C<inf>17:0</inf>. The predominant menaquinones found were found to be MK-9(H<inf>8</inf>) and MK-9(H<inf>6</inf>). The polar lipids detected were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, a phosphoglycolipid and two unknown phospholipids. The genomic DNA G+C content was determined to be 70.4 mol%. On the basis of the data from this polyphasic taxonomic study, strain B1041T can be considered to represent a novel species within the genus Streptomyces for which the name Streptomyces seymenliensis sp. nov. is proposed (type strain B1041T =KCTC 29245T = DSM 42117T). © 2014, Springer International Publishing Switzerland.