1887

Abstract

A novel bacterial strain AHQ-46 was isolated from a freshwater lake in Taiwan. The strain was Gram-stain-negative, strictly aerobic, motile by gliding, rod-shaped and formed translucent yellow colonies. Optimal growth occurred at 20–25 °C, pH 7.0, and in the absence of NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain AHQ-46 belonged to the genus Flavobacterium and was most closely related to Flavobacterium verecundum TTM-46 with a sequence similarity of 95.8 %. Strain AHQ-46 contained iso-C15 : 1 G, iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and iso-C17 : 0 3-OH as the predominant fatty acids. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized aminophospholipids and phospholipids. The major polyamine was homospermidine. The major isoprenoid quinone was MK-6. The DNA G+C content of the genomic DNA was 32.1 mol%. Differential phenotypic properties, together with the phylogenetic inference, demonstrate that strain AHQ-46 should be classified as a representative of a novel species of the genus Flavobacterium , for which the name Flavobacterium lacunae sp. nov. is proposed. The type strain is AHQ-46 (=BCRC 80889=LMG 28710).

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2017-05-05
2019-10-20
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