{"title":"Streptomyces tabacisoli sp. nov, isolated from the rhizosphere soil of Nicotiana tabacum.","authors":"Kaiqin Li, Hao Zhang, Ying Qian, Ping Mo, Aihua Deng, Jian Gao, Wei Liang","doi":"10.1038/s41429-024-00802-7","DOIUrl":null,"url":null,"abstract":"<p><p>Strain HUAS MG91<sup>T</sup>, a novel actinobacterium, was isolated from the rhizosphere soil of Nicotiana tabacum collected from Changde City, China. This strain could form short, rod-shaped spores with a smooth surface and Rectiflexibles spore chains on Gause's synthetic No.1 medium. Comparison of 16S rRNA gene sequences showed that strain HUAS MG91<sup>T</sup> exhibited the highest similarity to Streptomyces kunmingensis NBRC 14463 <sup>T</sup> (98.95%). Phylogenetic analysis based on 16S rRNA gene and genome sequences indicated that strain HUAS MG91<sup>T</sup> was closely related to S. kunmingensis NBRC 14463 <sup>T</sup>. However, the ANIm and dDDH values between them were 87.25% and 28.60%, respectively, lower than the 96.7% ANIm threshold and 70.0% cutoff point used as guideline values for Streptomyces species delineation. On the basis of phenotypic and genotypic differentiation from tested strains, strain HUAS MG91<sup>T</sup> is proposed to represent a novel species of the genus Streptomyces, named Streptomyces tabacisoli sp. nov. The type strain is HUAS MG91<sup>T</sup> (=MCCC 1K09288<sup>T</sup> = JCM 37027 <sup>T</sup>).</p>","PeriodicalId":54884,"journal":{"name":"Journal of Antibiotics","volume":" ","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Antibiotics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1038/s41429-024-00802-7","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Strain HUAS MG91T, a novel actinobacterium, was isolated from the rhizosphere soil of Nicotiana tabacum collected from Changde City, China. This strain could form short, rod-shaped spores with a smooth surface and Rectiflexibles spore chains on Gause's synthetic No.1 medium. Comparison of 16S rRNA gene sequences showed that strain HUAS MG91T exhibited the highest similarity to Streptomyces kunmingensis NBRC 14463 T (98.95%). Phylogenetic analysis based on 16S rRNA gene and genome sequences indicated that strain HUAS MG91T was closely related to S. kunmingensis NBRC 14463 T. However, the ANIm and dDDH values between them were 87.25% and 28.60%, respectively, lower than the 96.7% ANIm threshold and 70.0% cutoff point used as guideline values for Streptomyces species delineation. On the basis of phenotypic and genotypic differentiation from tested strains, strain HUAS MG91T is proposed to represent a novel species of the genus Streptomyces, named Streptomyces tabacisoli sp. nov. The type strain is HUAS MG91T (=MCCC 1K09288T = JCM 37027 T).
期刊介绍：
The Journal of Antibiotics seeks to promote research on antibiotics and related types of biologically active substances and publishes Articles, Review Articles, Brief Communication, Correspondence and other specially commissioned reports. The Journal of Antibiotics accepts papers on biochemical, chemical, microbiological and pharmacological studies. However, studies regarding human therapy do not fall under the journal’s scope. Contributions regarding recently discovered antibiotics and biologically active microbial products are particularly encouraged. Topics of particular interest within the journal''s scope include, but are not limited to, those listed below:
Discovery of new antibiotics and related types of biologically active substances
Production, isolation, characterization, structural elucidation, chemical synthesis and derivatization, biological activities, mechanisms of action, and structure-activity relationships of antibiotics and related types of biologically active substances
Biosynthesis, bioconversion, taxonomy and genetic studies on producing microorganisms, as well as improvement of production of antibiotics and related types of biologically active substances
Novel physical, chemical, biochemical, microbiological or pharmacological methods for detection, assay, determination, structural elucidation and evaluation of antibiotics and related types of biologically active substances
Newly found properties, mechanisms of action and resistance-development of antibiotics and related types of biologically active substances.
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