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Volume 70, Issue 9

sp. nov., isolated from a fish farm Free

Abstract

An obligate aerobic and bacteriochlorophyll -containing bacterium, designated strain AI77, was isolated from a fish farm in Uwa Sea, Japan. Cells were Gram-stain-negative, coccoid- to oval-shaped, and showed no motility. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain AI77 is a member of the genus and closely related to MM-7 (97.8 %), OCh 114 (97.3 %) and OCh 149 (97.3 %). The G+C content of strain AI77 was 61.0 mol%. The average amino acid identity values of the genome in strain AI77 with those in OCh 114 and OCh 149 were 73.26 % (SD 16.46) and 72.63 % (SD 16.76), respectively. The digital DNA–DNA hybridization values of strain AI77 with the type strains OCh 114 and OCh 149 were 18.70 and 18.50 %, respectively. The dominant fatty acids (>10 % of total fatty acids) of AI77 were summed feature 8 (C ω7 and/or C ω6) and saturated fatty acid C. The sole respiratory quinone was ubiquinone-10. The predominant polar lipids were phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. Based on the genetic and phenotypic data obtained herein, we conclude that strain AI77 represents a new species of the genus , for which we propose the name sp. nov.; the type strain is AI77 (=DSM 110091=NBRC 114115).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): aerobic anoxygenic phototrophic bacteria , bacteriochlorophylla , fish farm , Proteobacteria and roseobacter
Funding
This study was supported by the:
  • the Institute for Fermentation, Osaka
    • Principle Award Recipient: So Muramatsu
© 2020 The Authors
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2020-07-30
2024-04-19
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Roseobacter cerasinus sp. nov., isolated from a fish farm
Int J Syst Evol Microbiol 70, 4920 (2020); https://doi.org/10.1099/ijsem.0.004360
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