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Abstract

Strain SJQ9, an aerobic bacterium isolated from a soil sample collected in Shanghai, PR China, was characterized using a polyphasic approach. It grew optimally at pH 7.0, 30–35 °C and in the presence of 1 % (w/v) NaCl. A comparative analysis of 16S rRNA gene sequences showed that strain SJQ9 fell within the genus . The closest phylogenetic relatives of strain SJQ9 were DSM 11900 (98.6 % sequence similarity) and DSM 11901 (96.4 %). Cells of the strain were Gram-stain-negative, motile, non-spore-forming, rod-shaped and positive for oxidase activity and negative for catalase. The chemotaxonomic properties of strain SJQ9 were consistent with those of the genus : the major fatty acid was summed feature 3 (C 6 and/or C 7). The isoprenoid quinone was Q-8. The major polar lipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content was 65.7 mol%. Strain SH9 exhibited a DNA–DNA relatedness level of 34±2 % with DSM 11900 and 28±3 % with DSM 11901. Based on the obtained data, strain SJQ9 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SJQ9 (=JCM 33106=CCTCC AB 2018284).

Funding
This study was supported by the:
  • Shanghai Sailing Program (Award No. 17YF1416900)
    • Principle Award Recipient: LinaSun
  • Shanghai Agriculture Applied Technology Development Program, China (Award No.T20180414)
    • Principle Award Recipient: WeiguangLyu
  • SAAS Program for Excellent Research Team (Award nongkechuang 2017A-03)
    • Principle Award Recipient: WeiguangLyu
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2021-10-23
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