1887

Abstract

An orange-pigmented, short-rod-shaped, aerobic and non-motile bacterial strain, designated TK008, was isolated from the shallow-sea hydrothermal systems off Kueishantao Island in Taiwan, China, and it was studied by using a polyphasic taxonomic approach. Cells were Gram-stain-negative, and catalase- and oxidase-positive. Strain TK008 exhibited highest 16S rRNA gene sequence similarity of 97.1 % to F14. The phylogenetic trees based on 16S rRNA gene sequences showed that strain TK008 was a member of the genus . Digital DNA–DNA hybridization values between strain TK008 and two closely related species ( and ) were 20.6 and 20.9 %. The average nucleotide identity values of strain TK008 compared with and were 75.2 and 74.6 % respectively. The major isoprenoid quinone was ubiquinone-10. The predominant fatty acids (>10 %) were summed feature 8 (Cω6 and/or Cω7). The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, three unidentified phospholipids, two unidentified lipids and an unidentified glycolipid. The DNA G+C content of strain TK008 from genomic sequence data was 62.54 mol%. On the basis of polyphasic analysis, strain TK008 represents a novel species, for which the name sp. nov. is proposed. The type strain is TK008 (=CGMCC 1.13898=JCM 33630).

Funding
This study was supported by the:
  • Kai Tang , China Ocean Mineral Resources Research and Development Association , (Award DY135-E2-1-04)
  • Kai Tang , the Fundamental Research Funds for the Central Universities , (Award 20720190148)
  • Kai Tang , the National Natural Science Foundation of China project , (Award 41676070)
  • Kai Tang , the National Natural Science Foundation of China project , (Award 41776167)
  • Kai Tang , the National Natural Science Foundation of China project , (Award 91751207)
  • Kai Tang , the National Key Research and Development Program of China , (Award 2016YFA0601100)
  • Dan Lin , the National Natural Science Foundation of China project , (Award U1805242)
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2020-02-26
2020-06-02
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