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Streptomyces luteolifulvus sp. nov., a novel actinomycete isolated from soil in Nanjing, China

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Abstract

During the investigation of exploring potential sources of novel species and natural bioactives, a novel actinomycete, designated strain HIT-DPA4T, was isolated from a soil sample, which was collected from Nanjing, Jiangsu Province, PR China and characterized using a polyphasic approach. On the basis of 16S rRNA gene sequence similarities and the result of phylogenetic analysis, strain HIT-DPA4T was most closely related to Streptomyces cyaneus CGMCC 4.1671 T, and shared the highest sequence similarity of 98.76%. In addition, the cell walls of the species HIT-DPA4T contained LL-diaminopimelic acid as the diagnostic diamino acid and the whole-cell hydrolysates were identified as glucose and ribose, and the principal phospholipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol mannoside and phosphatidylmonomethylethanolamine. MK-9(H6) and MK-9(H4) were predominant menaquinones; and C16:0, anteiso-C15:0 and C15:0 as major cellular fatty acids of the organism HIT-DPA4T. Gene Ontology database analysis and antiSMASH server predicted results displayed that strain HIT-DPA4T was a promising classification units, which has various types of functions and contains multiple biosynthetic gene clusters with the similarity more than 80%. Multilocus sequence analysis (MLSA) of five housekeeping genes (atpD, gyrB, recA, rpoB and trpB) illustrated that Streptomyces luteolifulvus formed a separate branch in the genus Streptomyces. However, a combination of low level of DNA-DNA relatedness and physiological properties indicated that strain HIT-DPA4T can be distinguished from its phylogenetically related species Streptomyces cyaneus CGMCC 4.1671 T. Moreover, gene synteny research could be further differed organism HIT-DPA4T from similarity species. Therefore, the strain is concluded to represent a novel species of the genus Streptomyces, for which the name Streptomyces luteolifulvus sp. nov. is proposed. The type strain is HIT-DPA4T (= CGMCC 4.7558 T = TISTR 2751 T).

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Acknowledgements

This work was supported in part by grant from the Harbin science and technology project (No. 2016AB3AP042). We are also grateful to Professor Aharon Oren for helpful advice on the specific epithet.

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SZ and QY conceived the idea of the study; SZ, MC, CL and ZW analysed the data; SZ, HL, KZ and SS interpreted the results. SZ wrote the paper; all authors discussed the results and revised the manuscript.

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Correspondence to Qian Yang.

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This article does not contain any studies with human participants or animal experiments by any of the authors.

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Zhao, S., Cheng, M., Lin, C. et al. Streptomyces luteolifulvus sp. nov., a novel actinomycete isolated from soil in Nanjing, China. Antonie van Leeuwenhoek 114, 1829–1839 (2021). https://doi.org/10.1007/s10482-021-01643-2

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  • DOI: https://doi.org/10.1007/s10482-021-01643-2

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