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  • Title: Confluentibacter flavum sp. nov., Isolated from the Saline Lake.
    Author: Li Y, Hou XJ, Shen X, Han SB, Ju Z, Zhao Z, Yu XY, Wu M, Sun C.
    Journal: Curr Microbiol; 2018 Nov; 75(11):1447-1452. PubMed ID: 30128842.
    Abstract:
    A Gram-stain-negative, rod-shaped, non-motile, bacterial isolate designated 3BT, was isolated from a saline lake, and subjected to a polyphasic taxonomic investigation. The phylogenetic analysis based on 16S rRNA gene sequence clearly showed an allocation to the genus Confluentibacter with similarity ranging from 95.1 to 98%. OrthoANI values between strain 3BT and related strains of Confluentibacter (< 90%) were lower than the threshold value of 95% ANI relatedness recommended for species demarcation. Strain 3BT grew at 4-35 °C and pH 6.0-8.0 (optimum, 28 °C and pH 6.5) and with 0-3% (w/v) NaCl (optimum, 0.5%). The predominant respiratory quinone was menaquinone-6 (MK-6) and the major fatty acids were iso-C15:0, iso-C15:1 G, iso-C15:0 3-OH, and iso-C17:0 3-OH. The polar lipid profile of strain 3BT comprised phosphatidylethanolamine, one unidentified aminolipid, one aminophospholipid, and three unidentified lipids (L1-3). The DNA G+C content was 33.1 mol%. On the basis of morphological, physiological, and chemotaxonomic characteristics, together with the results of phylogenetic analysis, strain 3BT is described as a novel species in genus Confluentibacter, for which the name Confluentibacter flavum sp. nov. (type strain 3BT = CGMCC115960T = KCTC52969T) is proposed.
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