Emticicia fontis sp. nov., isolated from freshwater

초록

A bacterial strain, designated IMCC1731T, was isolated from freshwater in Korea and characterized using a polyphasic taxonomic approach. Growth occurred at 10-37°C (optimum 25°C) and with 0-1% NaCl. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain IMCC1731T belonged to the genus Emticicia within the family Cytophagaceae and was most closely related to Emticicia ginsengisoli Gsoil 085T (98.11% sequence similarity) and Emticicia oligotrophica DSM 17448T (94.67%). The DNA-DNA relatedness of strain IMCC1731T with respect to Emticicia ginsengisoli Gsoil 085T was less than 70%. The G+C content of strain IMCC1731T was 37.82 mol%. The predominant cellular fatty acids were summed feature 3 (C16:1 ω6c and/or C16:1 ω7c) and iso-C15:0. Based on the physiological, chemotaxonomic characteristics, DNA-DNA hybridization relatedness and 16S rRNA genes analysis, stain IMCC1731T is considered to represent a novel species of Emticicia, for which Emticicia fontis sp. nov. is proposed. The type strain is IMCC1731T.