Actinomadura jiaoheensis sp. nov. and Actinomadura sporangiiformans sp. nov., two novel actinomycetes isolated from muddy soil and emended

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• 作者：Junwei Zhao ; Lifeng Guo ; Pengyu Sun ; Chuanyu Han ; Lu Bai…
• 关键词：Actinomadura jiaoheensis sp. nov. ; Actinomadura sporangiiformans sp. nov. ; Polyphasic taxonomy ; 16S rRNA gene
• 刊名：Antonie van Leeuwenhoek
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：108
• 期：6
• 页码：1331-1339
• 全文大小：914 KB
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  Saitou N, Nei M (19
• 作者单位：Junwei Zhao (1)
  Lifeng Guo (1)
  Pengyu Sun (1)
  Chuanyu Han (1)
  Lu Bai (1)
  Chongxi Liu (1)
  Yunxi Li (1)
  Wensheng Xiang (1) (2)
  Xiangjing Wang (1)
  
  1. Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin, 150030, People’s Republic of China
  2. 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
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Medical Microbiology
  Plant Sciences
  Soil Science and Conservation
  
• 出版者：Springer Netherlands
• ISSN：1572-9699

文摘

Two novel actinomycetes, designated strains NEAU-Jh1-3T and NEAU-Jh2-5T, were isolated from muddy soil collected from a riverbank in Jiaohe, Jilin Province, north China. A polyphasic study was carried out to establish the taxonomic positions of these strains. The 16S rRNA gene sequence analysis showed that the two novel isolates exhibited 99.9 % 16S rRNA gene sequence similarity with each other and that they are closely related to Actinomadura viridis IFO 15238T (99.6, 99.6 %) and Actinomadura vinacea IFO 14688T (99.3, 99.3 %). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the two cultures clustered together and formed a cluster with A. viridis IFO 15238T, A. vinacea IFO 14688T and Actinomadura rugatobispora IFO 14382T. However, the DNA–DNA hybridization value between strains NEAU-Jh1-3T and NEAU-Jh2-5T was 63.6 %, and the values between the two strains and their close phylogenetic relatives were also below 70 %. With reference to phenotypic characteristics, phylogenetic data and DNA–DNA hybridization results, the two strains can be distinguished from each other and their close phylogenetic relatives. Thus, strains NEAU-Jh1-3T and NEAU-Jh2-5T represent two novel species of the genus Actinomadura, for which the names Actinomadura jiaoheensis sp. nov. and Actinomadura sporangiiformans sp. nov. are proposed. The type strains are NEAU-Jh1-3T (=CGMCC 4.7197T = JCM 30341T) and NEAU-Jh2-5T (=CGMCC 4.7211T = JCM 30342T), respectively. Keywords Actinomadura jiaoheensis sp. nov. Actinomadura sporangiiformans sp. nov. Polyphasic taxonomy 16S rRNA gene