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  • Title: Enterovibrio pacificus sp. nov., isolated from seawater, and emended descriptions of Enterovibrio coralii and the genus Enterovibrio.
    Author: Liu Y, Zhang Z, Wang Y, Zheng Y, Zhang XH.
    Journal: Int J Syst Evol Microbiol; 2016 Jan; 66(1):319-325. PubMed ID: 26514588.
    Abstract:
    A Gram-stain-negative, elliptical and facultatively anaerobic strain, designated SW014T, motile by means of a single polar flagellum and positive for poly-β-hydroxybutyrate accumulation, was isolated from surface seawater of the South Pacific Gyre, during the Integrated Ocean Drilling Program Expedition 329. The strain was able to grow at 10-37 °C (optimum 28 °C). Growth was observed at NaCl concentrations (w/v) of 1-7 % (optimum 3-4 %). The pH range for growth was 7.0-9.0 (optimum pH 8.0). Phylogenetic analysis based on 16S rRNA gene sequences and multilocus sequence analysis indicated that strain SW014T belongs to the genus Enterovibrio within the family Vibrionaceae and is related most closely to Enterovibrio coralii LMG 22228T with 96.3, 83.7, 95.0, 77.1, 84.1 and 85.8 % sequence similarity based on 16S rRNA, recA, rpoA, rpoD, pyrH and ftsZ genes, respectively. The predominant cellular fatty acids were C16 : 1ω7c and/or C16 : 1ω6c, C16 : 0, and C18 : 1ω7c and/or C18 : 1ω6c. The respiratory quinone was ubiquinone-8 (Q-8). The polar lipids of strain SW014T comprised phosphatidylethanolamine, glycolipid, two unidentified aminolipids, two unidentified phospholipids and two unidentified polar lipids. The DNA G+C content was 44.8 mol%. Combining phylogenetic analysis, phenotypic characteristics and chemotaxonomic studies, strain SW014T represents a novel species of the genus Enterovibrio, for which the name Enterovibrio pacificus sp. nov. is proposed. The type strain is SW014T ( = KCTC 42425T = MCCC 1K00500T). Emended descriptions of Enterovibrio coralii and of the genus Enterovibrio are also provided.
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