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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 72, Issue 6

sp. nov. and sp. nov., isolated from Taklamakan Desert soil No Access

Abstract

Two Gram-negative, rod-shaped, non-spore-forming bacteria, designated SM9 and SM2, were isolated from Taklamakan Desert soil samples. Phylogenetic analysis based on the 16S rRNA gene sequences showed that strains SM9 and SM2 had the highest sequence similarity to the type strains BCRC 80972 and NBRC 112417 with similarity values of 98.2 and 97.7 %, respectively, and was among the predominant genera in the desert soil. The draft genomes of these two strains were 4.56 Mbp (SM9) and 5.08 Mbp (SM2) long with 65.1 mol% (SM9) and 63.5 mol% (SM2) G+C content. To adapt to the desert environment, these two strains possessed pathways for the synthesis of stress metabolite trehalose. The major fatty acids (>5 %) included C ω9 in SM2, but C, C and C cyclo ω8 in SM9, while the major menaquinone was ubiquinone 10 in both strains. The major polar lipids of SM9 and SM2 were phosphatidylglycerol, phosphatidylethanolamine and phospholipid. The average nucleotide identity and digital DNA–DNA hybridization results further indicated that strains SM9 and SM2 were distinguished from phylogenetically related species and represented two novel species within the genus , for which the names sp. nov. (type strain SM2=KCTC 72792=CGMCC 1.17776) and sp. nov. (type strain SM9=KCTC 82729=CCTCC AB 2021131) are proposed.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Microvirga , novel species and polyphasic taxonomy
Funding
This study was supported by the:
  • Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Santiago de Chile (Award 2017FY100302)
    • Principle Award Recipient: Yue-zhongLi
  • National Natural Science Foundation of China (Award 31800090)
    • Principle Award Recipient: HongJiang
  • National Natural Science Foundation of China (Award 32070030 and 31670076)
    • Principle Award Recipient: Yue-zhongLi
© 2022 The Authors
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2022-06-06
2024-05-13
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Microvirga roseola sp. nov. and Microvirga lenta sp. nov., isolated from Taklamakan Desert soil
Int J Syst Evol Microbiol 72, 005409 (2022); https://doi.org/10.1099/ijsem.0.005409
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