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Abstract

A moderately halophilic Gram-staining-negative bacterium, designated strain Y26, was isolated from a tidal flat of Taean coast in South Korea. Cells were strictly aerobic, motile cocci with a single flagellum and showed catalase- and oxidase-positive reactions. Growth of strain Y26 was observed at 15–35 °C (optimum 25–30 °C), pH 6.0–8.0 (optimum pH 6.5–7.5) and with 1.5–6.0 % (w/v) NaCl (optimum 2.0–3.0 %). The predominant fatty acids were C 7 (66.2 %), C (12.4 %) and C 3-OH (5.0 %) and the G+C content of the genomic DNA was 61.0 mol%. Strain Y26 contained ubiquinone-10 (Q-10) as the major respiratory quinone. Comparative 16S rRNA gene sequence analysis showed that strain Y26 formed a distinct phyletic lineage from other genera within the clade of the class and was most closely related to members of the genera , and with 93.8–94.6 % sequence similarity. On the basis of chemotaxonomic data and molecular properties, strain Y26 represents a novel genus, , within the family , for which the name gen. nov., sp. nov. is proposed. The type strain is Y26 (=KACC 13705 =DSM 22009).

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2010-12-01
2020-01-17
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vol. , part 12, pp. 2877 - 2881

Maximum-likelihood (a) and maximum-parsimony (b) trees showing phylogenetic relationships of strain Y26 and other related taxa. NCPPB 3554 (D14502) was used as an outgroup. Bar, 0.1 changes per nucleotide position.



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