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Int J Syst Evol Microbiol 59 (2009), 1888-1894; DOI  10.1099/ijs.0.005470-0
© 2009 International Union of Microbiological Societies

Shewanella marina sp. nov., isolated from seawater

Seong Chan Park1, Keun Sik Baik1, Mi Sun Kim1, Duwoon Kim2 and Chi Nam Seong1

1 Department of Biology, Sunchon National University, Suncheon 540-742, Republic of Korea
2 Division of Food Science and Aqualife Medicine, Chonnam National University, Yeosu 550-749, Republic of Korea

Correspondence
Chi Nam Seong
scnu{at}scnu.ac.kr

A motile, rod-shaped, pale-brown-pigmented bacterium, designated strain C4T, was isolated from seawater collected from the South Sea (Republic of Korea). Cells were Gram-negative, facultatively anaerobic, and catalase- and oxidase-positive. The major fatty acids were summed feature 3 (C16 : 1{omega}7c and/or iso-C15 : 0 2-OH; 19.4 %), C16 : 0 (16.3 %), C17 : 1{omega}8c (9.5 %) and iso-C15 : 0 (7.7 %). The DNA G+C content was 40.8 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain C4T formed a lineage within the genus Shewanella (92.7–96.1 % sequence similarity to representative strains of the genus Shewanella) and was part of a distinct branch with the clade comprising Shewanella haliotis DW01T and Shewanella algae ATCC 51192T. Phenotypic characteristics enabled strain C4T to be distinguished from S. haliotis and S. algae. On the basis of the data presented in this study, strain C4T represents a novel species, for which the name Shewanella marina sp. nov. is proposed. The type strain is C4T (=KCTC 22185T=JCM 15074T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain C4T is EU290154.

A scanning electron micrograph and GN2 MicroPlate (Biolog) data for strain C4T are available as supplementary material with the online version of this paper.






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Copyright © 2009 by the International Union of Microbiological Societies.