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Photobacterium ganghwense sp. nov., a halophilic bacterium isolated from sea water

¹ School of Biological Sciences and Institute of Microbiology, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Republic of Korea
² Department of Biology, College of Natural Sciences, Sunchon National University, Sunchon 540-742, Republic of Korea
³ Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-600, Republic of Korea

Correspondence
Jongsik Chun
jchun{at}snu.ac.kr

A marine bacterial strain, designated FR1311^T, was isolated from a sea-water sample from Ganghwa Island, South Korea. Cells were Gram-negative, facultatively anaerobic, catalase- and oxidase-positive, motile, oval or rod-shaped and halophilic (optimum sea-salt concentration for growth of 5–6 %). Phylogenetic analysis of its 16S rRNA gene sequence revealed that it represented a distinct line of descent within the genus Photobacterium. The major fatty acids were straight-chain saturated (C_{16 : 0}) and monounsaturated fatty acids (C_{16 : 1}7c and C_{18 : 1}7c). The predominant respiratory lipoquinone was Q-8. The DNA G+C content was 44 mol%. The phenotypic features of strain FR1199^T were similar to those of Photobacterium damselae subsp. damselae and Photobacterium damselae subsp. piscicida, but several physiological and chemotaxonomic properties readily distinguish the new isolate from them. On the basis of the polyphasic results revealed in this study, FR1311^T is considered to be the type strain of a novel species, for which the name Photobacterium ganghwense sp. nov. is proposed. The type strain is FR1311^T (=IMSNU 60287^T=KCTC 12328^T=JCM 12487^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain FR1311^T is AY960847.

A transmission electron micrograph of a negatively stained cell of strain FR1311^T is available as supplementary material in IJSEM Online.

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