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  • Title: Streptomyces lutosisoli sp. nov., a novel actinomycete isolated from muddy soil.
    Author: Shen Y, Sun T, Jiang S, Mu S, Li D, Guo X, Zhang J, Zhao J, Xiang W.
    Journal: Antonie Van Leeuwenhoek; 2018 Dec; 111(12):2403-2412. PubMed ID: 29995193.
    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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