1887

Abstract

A Gram-negative, strictly aerobic bacterium, designated CL-ES53, was isolated from surface water of the East Sea in Korea. Cells of strain CL-ES53 were short rods and motile by means of monopolar flagella. Strain CL-ES53 grew with 4–21 % NaCl (optimum 10 %) and at 5–40 °C (optimum 25 °C) and pH 5.2–8.8 (optimum pH 6.3–7.2). The major isoprenoid quinone was Q-8. The major fatty acids were C 7 (42.0 %), C 9 (14.8 %) and C (9.4 %). The genomic DNA G+C content was 64.9 mol%. Analysis of the 16S rRNA gene sequence of strain CL-ES53 revealed that it was a member of the genus and most closely related to (96.9 % sequence similarity) and EPR70 (93.8 %). Phylogenetic analyses based on the 16S rRNA gene sequence showed that strain CL-ES53 formed a robust cluster with . Although the 16S rRNA gene sequence similarity between strain CL-ES53 and was rather high (96.9 %), DNA–DNA relatedness between these strains was 12 %, suggesting that they represent genomically distinct species. Strain CL-ES53 was differentiated from and EPR70 on the basis of optimum temperature for growth and certain phenotypic characteristics. The phylogenetic analysis and physiological and chemotaxonomic data show that strain CL-ES53 should be classified in the genus within a novel species, for which the name sp. nov. is proposed. The type strain is CL-ES53 (=KCCM 90064 =DSM 19549).

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2010-03-01
2020-09-28
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