1887

Abstract

Four novel strains isolated from the cloacal contents of snow finches () were characterized as aerobic, Gram-stain-negative, slightly motile, and rod-shaped. Analysis of the 16S rRNA gene sequence revealed that strain CF-458 had the highest similarities of 96.9 and 96.4 % with HYN0051 and DSM 5563, while strain CF-1111 shared the highest similarities of 96.4 and 96.1 % with LMG 26273 and SS95. Phylogenomic analysis showed the four isolates were separated into group Ⅰ (CF-458 and CF-917) and group Ⅱ (CF-1111 and CF-509), and clustered independently in the vicinity of the genera and . Summed feature 3 (C 7 and/or C 6, 23.9 and 17.2 %, respectively), C (21.8 and 22.1 %, respectively) and C (10.6 and 17.7 %, respectively) were the common major fatty acids, and summed feature 8 (C 7 and/or C 6, 12.3 %) was also a major fatty acid for strain CF-458 while cyclo-C (13.1%) was for strain CF-1111. Both had Q-8 as the sole quinone and contained phosphatidylethanolamine, phosphatidylglycerol, and diphosphatidylglycerol as the major polar lipids. The DNA G+C content of strains CF-458 and CF-1111 was 45.7 and 45.4 mol%, respectively. Based on taxonomic position in the phylogenomic tree and phenotypic properties, two novel species of a new genus within the family are thus proposed, with the name gen. nov., sp. nov. (type strain CF-458=CGMCC 1.16483=GDMCC 1.1586=JCM 33489) and sp. nov. (type strain CF-1111=CGMCC 1.16786=GDMCC 1.1587=JCM 33490), respectively.

Funding
This study was supported by the:
  • Research Units of Discovery of Unknown Bacteria and Function (Award 2018RU010)
    • Principle Award Recipient: JianguoXu
  • Sanming Project of Medicine in Shenzhen (Award SZSM201811071)
    • Principle Award Recipient: JianguoXu
  • National Key R&D Program of China (Award 2018YFC1200102)
    • Principle Award Recipient: DongJin
  • National Major Science and Technology Projects of China (Award 2018ZX10712001-018)
    • Principle Award Recipient: ShanLu
  • National Science and Technology Major Project of China (Award 2018ZX10712001-007)
    • Principle Award Recipient: JingYang
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2021-01-22
2024-04-24
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