Streptomyces urticae sp. nov., isolated from rhizosphere soil of Urtica urens L.
Two novel Gram-stain positive, spore-forming, aerobic actinomycetes, designated NEAU-PCY-1T and NEAU-PCY-2, were isolated from rhizosphere soil of Urtica urens L. collected from Anshan, Liaoning Province, northeast China. The 16S rRNA gene sequence analysis showed that strains NEAU-PCY-1T and NEAU-PCY-2 exhibited 99.8% similarity with each other and are closely related to Streptomyces abietis DSM 42080T (98.2, 98.3%) and Streptomyces fildesensis DSM 41987T (98.0, 98.1%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the two strains formed a cluster with these two closely related species. Moreover, DNA–DNA hybridization results and some phenotypic, physiological and biochemical properties differentiated the two strains from their close relatives in the genus Streptomyces. Based on a polyphasic taxonomy study, strains NEAU-PCY-1T and NEAU-PCY-2 are considered to represent a novel species of the genus Streptomyces, for which the name Streptomyces urticae sp. nov. is proposed, with NEAU-PCY-1T (= DSM 105115T = CCTCC AA 2017015T) as the type strain.
KeywordsStreptomyces urticae sp. nov. Polyphasic taxonomy 16S rRNA gene Rhizosphere soil of Urtica urens L.
This work was supported in part by grants from the National Natural Science Foundation of China (Nos. 31572070, 31672092 and 31471832), Chang Jiang Scholar Candidates Program for Provincial Universities in Heilongjiang (CSCP). We are grateful to Prof. Aharon Oren for helpful advice on the specific epithet.
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Conflict of interest
The authors declare that they have no conflict of interest.
This article does not contain any studies with human participants and/or animals performed by any of the authors. The formal consent is not required in this study.
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