Flavobacterium lacicola sp nov., isolated from a freshwater lake

초록

A bacterial strain, designated IMCC25901(T), was isolated from a freshwater lake, Soyang, in the Republic of Korea. The strain was Gram-stain-negative, aerobic, non-motile, orange-coloured and short rod-shaped. The 16S rRNA gene sequence analysis showed that strain IMCC25901(T) was most closely related to Flavobacterium yonginense HMD1001 T (97.0 %) and formed a robust phylogenetic clade with other species of the genus Flavobacterium. Growth of strain IMCC25901 T was observed at 10-30 degrees C (optimum, 20 degrees C), pH 6-8 (optimum, pH 7) and 0-1.0% NaCl (optimum, 0 %). The DNA G+C content of strain IMCC25901 T was 34.2 mol%. The major fatty acid constituents of the strain were anteiso-C-15 : 0, summed feature 3 (C-16 : 1 omega 6c and/or C-16 : 1 omega 7c) and iso-C-15 : 0. Cells of strain IMCC25901(T) contained phosphatidylethanolamine, an unidentified phospholipid, two unidentified aminolipids and two unidentified lipids. The isoprenoid quinone detected in the strain was MK-6. On the basis of the taxonomic data obtained in this study, it was concluded that strain IMCC25901 T represented a novel species in the genus Flavobacterium, for which the name Flavobacterium lacicola sp. nov. is proposed. The type strain of Flavobacterium lacicola is IMCC25901(T) (=KCTC 52571(T) =NBRC 112883(T)).

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