Fluviicola kyonggii sp. nov., a bacterium isolated from forest soil and emended description of the genus Fluviicola

Ram Hari Dahal, Jaisoo Kim
International Journal of Systematic and Evolutionary Microbiology 2018, 68 (6): 1885-1889
A novel bacterium, designated strain CA-1T , was isolated from forest soil in Kyonggi University. Cells were strictly aerobic, Gram-stain-negative, catalase-positive, oxidase-negative, non-motile, non-spore-forming, rod-shaped and red-orange-pigmented. Strain CA-1T hydrolysed casein and DNA. It was able to grow at 15-37 °C, pH 5.5-9.0 and at 0-2 % (w/v) NaCl concentration. Flexirubin-type pigments were present. Phylogenetic analysis based on its 16S rRNA gene sequence indicated that strain CA-1T formed a lineage within the family Crocinitomicaceae of the phylum Bacteroidetes that was distinct from Fluviicola hefeinensis MYL-8T (96.8 % sequence similarity) and Fluviicola taffensis DSM 16823T (96.1 %). Strain CA-1T contained menaquinone-6 as a sole respiratory quinone. The major polar lipids were phosphatidylethanolamine, unidentified aminolipids, an unidentified aminophospholipid and an unidentified lipid. The major cellular fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, C15 : 0 2-OH, summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) and iso-C15 : 1 G. The DNA G+C content of strain CA-1T was 44.1 mol%. The polyphasic characterization revealed that strain CA-1T represents a novel species in the genus Fluviicola, for which the name Fluviicola kyonggii sp. nov. is proposed. The type strain is CA-1T (=KEMB 9005-526T =KACC 19148T =NBRC 112684T ).

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