1887

Abstract

A bacterial strain, designated IMCC1731, was isolated from an eutrophic freshwater pond and characterized using a polyphasic taxonomic approach. Cellular growth occurred at pH 6–9 (optimum, pH 8.0), at 10–30 °C (optimum, 25 °C) and with 0–1 % (w/v) NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain IMCC1731 belonged to the genus Emticicia in the family Cytophagaceae and was most closely related to Emticicia ginsengisoli Gsoil 085 (98.1 %) followed by Emticicia paludis HMF3850 (95.0 %), Emticicia oligotrophica DSM 17448 (94.7 %), Emticicia aquatica HMF2925 (94.4 %) and Emticicia sediminis JBR12 (94.0 %). The DNA–DNA relatedness between strain IMCC1731 and E. ginsengisoli Gsoil 085 was 47±4 %. The DNA G+C content of strain IMCC1731 was 37.7 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 and chemotaxonomic characteristics, DNA–DNA relatedness and 16S rRNA gene phylogeny, stain IMCC1731 is considered to represent a novel species of the genus Emticicia , for which the name Emticicia fontis sp. nov. is proposed. The type strain is IMCC1731 (=KCTC 52248=JCM 31373).

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2016-12-01
2019-10-20
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