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Published on: January 12, 2024
Dyadobacter koreensis sp. nov., isolated from fresh water
Keun Sik Baik1, Mi Sun Kim1, Eun Mi Kim2,1
1Department of Biology, College of Natural Sciences, Sunchon National University, Suncheon 540-742, Republic of Korea.
Abstract:
A non-motile, rod-shaped, light-yellow-pigmented bacterium, designated strain WPCB159(T), was isolated from freshwater samples collected from the Woopo wetland in Korea. The cells were Gram-negative, aerobic and catalase- and oxidase-positive. The major fatty acids were C(16 : 1)omega7c (34.8 %), iso-C(15 : 0) (24.2 %) and C(16 : 0) (9.4 %). The DNA G+C content was 44 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain WPCB159(T) forms a lineage within the genus Dyadobacter (family 'Flexibacteraceae') and is closely related to Dyadobacter hamtensis HHS 11(T) (97.8 % sequence similarity) and to other members of the genus Dyadobacter (95.2-96.8 % sequence similarity). The phenotypic characteristics and DNA-DNA hybridization relatedness data indicate that strain WPCB159(T) should be distinguished from D. hamtensis HHS 11(T). On the basis of the evidence presented in this study, strain WPCB159(T) represents a novel species of the genus Dyadobacter, for which the name Dyadobacter koreensis sp. nov. is proposed. The type strain is WPCB159(T) (=KCTC 12537(T)=NBRC 101116(T)).
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