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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 75, Issue 3

sp. nov. and sp. nov., isolated from the rhizosphere soil of and No Access

Abstract

Two novel actinobacteria strains, HUAS MG47 and HUAS YS2, were isolated from the rhizosphere soil of and collected from Changde City, Hunan Province, China. These two strains could form rectiflexible spore chains consisting of short cylindrical spores with smooth surfaces, suggesting that they had typical characteristics of the genus . The cell wall peptidoglycan contained -diaminopimelic acid as a diagnostic amino acid. The predominant menaquinones were MK-9 (H), MK-9 (H) and MK-9 (H). The genome sizes of HUAS MG47 and HUAS YS2 were 7.35 and 7.88 Mbp with a G+C content of 72.3 and 72.0 mol%, respectively. Phylogenetic analysis based on the 16S rRNA gene and five housekeeping gene sequences (, , , and ) indicated that strains HUAS MG47 and HUAS YS2 formed an evolutionary lineage with CGMCC 4.7393. However, the values of multilocus sequence analysis evolutionary distance, average nucleotide identity and DNA–DNA hybridization between these two strains and their closely related relatives indicated that they were clearly different from other known species. Consequently, based on the polyphasic taxonomic study, HUAS MG47 and HUAS YS2 represent two novel species for which the names sp. nov. (HUAS MG47=MCCC 1K09365=JCM 37293) and sp. nov. (HUAS YS2=MCCC 1K08940=JCM 36737) are proposed, respectively.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Camellia oleifera , Cathaya argyrophylla , novel species , polyphasic taxonomy , Streptomyces solicamelliae and Streptomyces solicathayae
Funding
This study was supported by the:
  • the project of Hunan Provincial Education Department (Award 24A0492)
    • Principal Award Recipient: WanshengZou
  • Changde Key Innovation Team for wetland biology and Environmental Ecology
    • Principal Award Recipient: WanshengZou
  • Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
    • Principal Award Recipient: YunWang
  • Hunan University of Arts and Sciences Furong College Students Innovation and Entrepreneurship Project (Award 20240523)
    • Principal Award Recipient: TingTang
  • the Science and Technology Innovation Program of Hunan Province (Award 2022RC1169)
    • Principal Award Recipient: BaiyuanLi
  • Innovative Program Plan for College Students in Hunan Province (Award S202410549029)
    • Principal Award Recipient: YaxiZheng
  • the project of Hunan Provincial Education Department (Award 23B0659)
    • Principal Award Recipient: PingMo
  • the Hunan Natural Science Foundation (Award 2023JJ50049)
    • Principal Award Recipient: YunWang
  • Natural Science Foundation of Hunan Province (Award 2024JJ7300)
    • Principal Award Recipient: PingMo
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2025-03-18
2026-01-19

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/content/journal/ijsem/10.1099/ijsem.0.006714
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Streptomyces solicamelliae sp. nov. and Streptomyces solicathayae sp. nov., isolated from the rhizosphere soil of Camellia oleifera and Cathaya argyrophylla
Int J Syst Evol Microbiol 75, 006714 (2025); https://doi.org/10.1099/ijsem.0.006714
/content/journal/ijsem/10.1099/ijsem.0.006714
/content/journal/ijsem/10.1099/ijsem.0.006714
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