<Emphasis Type="Italic">Streptomyces lutosisoli</Emphasis> sp. nov., a novel actinomycete isolated from muddy soil |
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Authors: | Yue Shen Tianyu Sun Shanwen Jiang Shan Mu Dongmei Li Xiaowei Guo Jianli Zhang Junwei Zhao Wensheng Xiang |
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Institution: | 1.Key Laboratory of Soybean Biology in Chinese Ministry of Education,Northeast Agricultural University,Harbin,People’s Republic of China;2.Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee,Northeast Agricultural University,Harbin,People’s Republic of China;3.State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing,People’s Republic of China;4.School of Life Science,Beijing Institute of Technology,Beijing,People’s Republic of China |
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Abstract: | A novel Gram-stain positive, spore-forming, aerobic actinomycete, designated strain NEAU-QTH3-11T, was isolated from muddy soil collected from a stream in Qitaihe, Heilongjiang Province, northeast China and characterised using a polyphasic approach. The 16S rRNA gene sequence analysis showed that strain NEAU-QTH3-11T belongs to the genus Streptomyces and is closely related to Streptomyces rhizosphaerihabitans NBRC 109807T (99.38%) and Streptomyces mirabilis JCM 4791T (99.03%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the strain formed a cluster with S. rhizosphaerihabitans NBRC 109807T and Streptomyces siamensis NBRC 108799T (98.62%). The menaquinones were identified as MK-9(H8), MK-9(H6) and MK-9(H4). The phospholipid profile was found to consist of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, an unidentified phospholipid and an unidentified lipid. The major fatty acids were identified as anteiso-C15:0, iso-C16:0, C16:0 and C15:0. However, multilocus sequence analysis based on five house-keeping genes (atpD, gyrB, rpoB, recA and trpB), low DNA-DNA hybridization results and some phenotypic, physiological and biochemical properties could differentiate the strain from its close relatives in the genus Streptomyces. Therefore, strain NEAU-QTH3-11T is considered to represent a novel species of the genus Streptomyces, for which the name Streptomyces lutosisoli sp. nov. is proposed, with NEAU-QTH3-11T (=DSM 42165T=CGMCC 4.7198T) as the type strain. |
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