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

Volume 75, Issue 6

sp. nov., sp. nov. and sp. nov., isolated from glaciers Open Access

Abstract

Three Gram-stain-negative, rod-shaped, motile bacterial strains, each with a single polar flagellum, designated LB3P38, LT1P18 and ZB1P45, were isolated from glacier samples on the Tibetan Plateau, P.R. China. These strains grew at temperatures ranging from −2 to 32 °C (optimum 25–30 °C) and at pH values of 5.0–11.0 (optimum pH 7.0). The similarities of 16S rRNA gene sequences among these strains ranged from 99.67% to 99.93%. Phylogenetic analysis based on 16S rRNA gene sequences confirmed their affiliation with the genus . Phylogenomic analysis positioned these strains in close relation to PMCC 200367 and LMG 19851. Average nucleotide identity values and digital DNA–DNA hybridization values between these strains and other type strains of the genus were below 94.6% and 63.4%, respectively. The predominant fatty acids identified in these strains were C, C cyclo and summed feature 3 (C c and/or C c). Based on the combined phenotypic and phylogenetic evidence, each strain is proposed to represent a novel species within the genus , with the names sp. nov. (type strain=LB3 P38=CGMCC 1.11284=JCM 37126), sp. nov. (type strain=LT1 P18=CGMCC 1.11310=JCM 37131) and sp. nov. (type strain=ZB1 P45=CGMCC 1.23235=JCM 37141) proposed.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): glacier , phylogenomic and Pseudomonas
Funding
This study was supported by the:
  • Beijing Municipal Science & Technology Project, China (Award Z241100007724009)
    • Principle Award Recipient: QingLiu
  • Biological Resources Programme, Chinese Academy of Sciences (Award CAS-TAX-24-024)
    • Principle Award Recipient: Yu-HuaXin
  • National Natural Science Foundation of China (Award 32170007)
    • Principle Award Recipient: QingLiu
  • Strategic Priority Research Program of the Chinese Academy of Sciences (Award XDB0810000)
    • Principle Award Recipient: QingLiu
© 2025 Institute of Microbiology, Chinese Academy of Sciences
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
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2025-06-13
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Pseudomonas lyxosi sp. nov., Pseudomonas arabinosi sp. nov. and Pseudomonas frigoris sp. nov., isolated from glaciers
Int J Syst Evol Microbiol 75, 006799 (2025); https://doi.org/10.1099/ijsem.0.006799
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