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

Volume 75, Issue 4

gen. nov., sp. nov., isolated from the Gurbantunggut Desert soil No Access

Abstract

A Gram-stain-negative, aerobic, rod-shaped bacterial strain, SYSU D60014, was isolated from a sandy soil sample collected from the Gurbantunggut Desert in Xinjiang, PR China. Colonies of SYSU D60014 were pink-coloured, crystalline, irregular edge with a rough surface. Phylogenetic analyses based on both the 16S rRNA gene and whole-genome sequences assigned strain SYSU D60014 belonged to the family , formed a distinct lineage and showed 92.5–91.0% similarity to closely related strains. Digital DNA–DNA hybridization, average nucleotide identity and average amino acid identity values between strain SYSU D60014 and members of its related species were 17.2–19.6%, 70.8–74.4% and 48.9–64.5%, respectively. The complete genome of strain SYSU D60014 was 5,100,926 bp with a DNA G+C content of 65.1%. Cells were oxidase-positive and catalase-negative. The strain could grow at 28–40 °C (optimum, 37 °C), pH 5.0–8.0 (optimum, pH 7.0), and in the presence of up to 3% NaCl (optimum, 1–1.5%, w/v) on R2A. The predominant menaquinone was Q-10. The main polar lipids were phosphatidylethanolamine, phosphatidylmethyl ethanolamine, diphosphatidylglycerol, unidentified aminophospholipid, unidentified aminolipid, unidentified phospholipid, four unidentified polar lipids and two unidentified phosphoglycolipids. Major cellular fatty acids were C cyclo 8, summed feature 8 (C c and/or C c) and C. Based on the results obtained through genotypic and phenotypic analyses, we propose that strain SYSU D60014 represents a novel species and genus within the family , for which we propose the name gen. nov., sp. nov. (type strain SYSU D60014=NBRC 112951=CPCC 101030).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): desert soil , polyphasic taxonomy , Rhodospirillaceae and Virgifigura deserti
Funding
This study was supported by the:
  • the Science and Technology Major Project of Xizang (Award XZ202501ZY0019)
    • Principal Award Recipient: LiWen-Jun
  • Fundamental Research Funds for the Central Universities, Sun Yat-sen University (Award 24qnpy076)
    • Principal Award Recipient: QiLi
  • Guangdong Basic and Applied Basic Research Foundation, China (Award 2023A1515012020)
    • Principal Award Recipient: ShuaiLi
  • Third Xinjiang Scientific Expedition Program (Award 2022xjkk1200)
    • Principal Award Recipient: LeiDong
  • National Natural Science Foundation of China (Award 32270076)
    • Principal Award Recipient: LeiDong
© 2025 Sun Yat-Sen University
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2025-04-28
2026-01-22

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Virgifigura deserti gen. nov., sp. nov., isolated from the Gurbantunggut Desert soil
Int J Syst Evol Microbiol 75, 006771 (2025); https://doi.org/10.1099/ijsem.0.006771
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