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Volume 64, Issue Pt_6

sp. nov. and sp. nov., isolated from the marine environment, and emended description of the genus Free

Abstract

Two motile, rod-shaped and agarolytic bacterial strains, designated PSC101 and KDW4, were isolated from seawater and gut microflora of abalone, respectively, collected from the South Sea (Republic of Korea). Cells were Gram-stain-negative, aerobic, catalase- and oxidase-positive. Strains PSC101 and KDW4 showed high 16S rRNA gene sequence similarity to each other (98.6 %). SA4-48 was the nearest neighbour of strains PSC101 and KDW4 with 96.6 % and 97.0 % 16S rRNA gene sequence similarity, respectively. DNA–DNA relatedness among strains PSC101, KDW4 and KCTC 23240 was less than 70 %. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the two isolates belonged to the genus and formed a distinct phyletic line from SA4-48. The common major cellular fatty acids of the two novel isolates were C, Cω8 and summed feature 3 (Cω6/Cω7). Flexirubin-type pigments were absent. The main ubiquinone was UQ-8 and the DNA G+C content of strains PSC101 and KDW4 was 49.5 and 42.5 mol%, respectively. The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol and an unidentified amino lipid. On the basis of the polyphasic characterization of the two strains, it is suggested that the two isolates represent two novel species of the genus , for which the names sp. nov. (type strain, PSC101 = KCTC 32274 = JCM 19496) and sp. nov. (type strain, KDW4 = KCTC 22500 = JCM 16340) are proposed. An emended description of the genus is also proposed.

  • Published Online:
Funding
This study was supported by the:
  • National Institute of Biological Resources (NIBR) under the Ministry of Environment, Republic of Korea
  • Suncheon Research Center for Natural Medicines
© 2014 IUMS
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2014-06-01
2024-12-06
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Psychrosphaera aestuarii sp. nov. and Psychrosphaera haliotis sp. nov., isolated from the marine environment, and emended description of the genus Psychrosphaera
Int J Syst Evol Microbiol 64, 1952 (2014); https://doi.org/10.1099/ijs.0.061564-0
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