1887

Abstract

A Streptomyces -like strain, designated TRM 45540, was isolated from soil of the Loulan area (89° 22′ 22″ E 40° 29′ 55″ N), Xinjiang Province, north-west China, and was characterized taxonomically by using a polyphasic study. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain TRM 45540 shared 99.87 % similarity with Streptomyces mutabilis NBRC 12800 (GenBank accession number AB184156). The strain was aerobic, Gram-stain-positive, with an optimum NaCl concentration for growth of 5 % (w/v). The isolate formed white aerial mycelium that was long filamentous with few branches; the substrate mycelium possessed long, smooth-surfaced spore chains bearing smooth spores and produced a yellow diffusible pigment. The strain contained iso-C16 : 0, anteiso-C15 : 0, anteiso-C17 : 0 and C16 : 0 as major cellular fatty acids. The predominant menaquinones of the strain were MK-9(H6), MK-9(H4) and MK-9(H10). The whole-cell sugar pattern contained glucose and ribose. The polar lipid pattern of the strain consisted of phosphatidylethanolamine, diphosphatidylglycerol, phosphotidylinositol, phosphatidylglycerol and phosphatidylinositolmannosides. Genotypic and phenotypic data confirmed that strain TRM 45540 represents a novel species, clearly different from related species of the genus Streptomyces, and for which the name Streptomyces luteus (type strain TRM 45540=CCTCC AA 2014003=NRRL B-59117) is proposed.

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2017-04-03
2019-10-22
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