Abstract

A Gram-stain negative, non-motile, rod-shaped and aerobic bacterial strain, designated JG48(T), was isolated from a gravel sample taken from a beach adjacent to Udo island, South Korea. Strain JG48(T) was found to grow optimally at 25 °C, at pH 7.0-8.0 and in the presence of 2.0 % (w/v) NaCl. The 16S rRNA gene sequence of strain JG48(T) exhibited sequence similarities of 96.67 % to Hyunsoonleella jejuensis CNU004(T). The major fatty acids present in the strain JG48(T) were identified as iso-C15:0, iso-C15:1 G, iso-C17:0 3-OH and iso-C15:0 3-OH. The predominant isoprenoid quinone was identified as MK-6. The polar lipids profile of strain JG48(T) was found to consist of phosphatidylethanolamine, three unidentified amino lipids and four unidentified lipids. The DNA G+C content of strain JG48(T) was determined to be 34 mol%. Based on the morphological and physiological properties, and the results of phylogenetic analyses, the strain is considered to represent a novel species of the genus Hyunsoonleella, for which the name Hyunsoonleella udoensis sp. nov. is proposed. The type strain is JG48(T) (=KCTC 42341(T)=JCM 30600(T)).

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