1887

Abstract

A novel anaerobic bacterium, designated SYSU GA19001, was isolated from a hot spring sediment sample. Phylogenetic analysis indicated that the isolate belongs to the genus , and showed the highest sequence similarity to CICC 10730 (96.63 %) and PYR-10 (96.11 %). Cells of strain SYSU GA19001 were Gram-stain-positive, spore-forming, rod-shaped (0.6–0.8×2.6–4.0 µm) and motile. Growth was observed at pH 5.0–9.0 (optimum, pH 7.0), 37–55 °C (optimum, 45 °C) and in NaCl concentrations of 0–2.0 % (optimum, 0 %). The genomic DNA G+C content was 31.62 %. The major cellular fatty acids of strain SYSU GA19001 were C, iso-C, C and summed feature 8. The prominent polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol. -diaminopimelic acid was the diamino acid in peptidoglycan. Based on the results of phylogenetic, chemotaxonomic and phenotypic analyses, strain SYSU GA19001 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain of the proposed novel species is SYSU GA19001 (=NBRC 115040= CGMCC 1.17864).

Funding
This study was supported by the:
  • the key Scientific Research Platforms and Program in Ordinary Universities of Guangdong Province (Award 2018KQNCX183)
    • Principle Award Recipient: LanLiu
  • Guangdong Basic and Applied Basic Research Foundation (Award 2019A1515110227)
    • Principle Award Recipient: LanLiu
  • National Science and Technology Fundamental Resources Investigation Program of China (Award 2019FY100701)
    • Principle Award Recipient: Jian-YuJiao
  • National Science and Technology Fundamental Resources Investigation Program of China (Award 2021FY100900)
    • Principle Award Recipient: Jian-YuJiao
  • National Natural Science Foundation of China (Award 91951205)
    • Principle Award Recipient: LiWen-Jun
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2023-01-11
2024-07-25
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