1887

Abstract

A Gram-negative, facultatively aerobic, oxidase- and catalase-positive, rod-shaped bacterium, designated strain E407-8, was isolated from a sediment sample from the South China Sea. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain E407-8 was affiliated with the genus , sharing the highest sequence similarity with KMM 1406 (97.5 %) and SW-353 (97.4 %) and showing less than 97 % sequence similarity to the type strains of other recognized species. Levels of DNA–DNA relatedness of strain E407-8 to DSM 17616 and JCM 14331 were 25.2 % (25.3 % in the duplicate measurement) and 9.4 % (6.5 %), respectively. The bacterium could grow at 10–48 °C (optimum 37 °C) and in the presence of 0–8 % (w/v) NaCl (optimum 0.5–2.5 %). The major cellular fatty acids of strain E407-8 were summed feature 3 (Cω7 and/or iso-C 2-OH), Cω8, C and Cω7. The predominant respiratory quinone was ubiquinone Q-8. The DNA G+C content was 51.0 mol%. Based on the results of our polyphasic taxonomic study, strain E407-8 represents a novel species in the genus , for which the name sp. nov. is proposed. The type strain is E407-8 ( = CCTCC AB 209089  = KACC 14030). An emended description of the genus Brettar 2002 emend. Merchant 2007 is also proposed.

Funding
This study was supported by the:
  • , Hi-Tech Research and Development Program of China , (Award 2007AA021306 and 2007AA091903)
  • , National Natural Science Foundation of China , (Award 30770062 and 30770040)
  • , COMRA Program , (Award DYXM-115-02-2-6)
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2011-05-01
2021-01-28
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