Shewanella seohaensis sp. nov., isolated from a tidal flat sediment

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Shewanella seohaensis sp. nov., isolated from a tidal flat sediment
J H Yoon; S Park; Yong Taek Jung; Jung-Sook Lee
Bibliographic Citation
Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, vol. 102, no. 1, pp. 149-156
Publication Year
Gram-negative, motile and rod-shaped bacterial strain, designated S7-3 T, was isolated from a tidal flat sediment at Saemankum on the western coast of Korea. Phylogenetic analyses based on 16S rRNA gene and gyrB sequences showed that strain S7-3 T belonged to the genus Shewanella, clustering with Shewanella decolorationis S12 T. Strain S7-3 T exhibited 98.8 % 16S rRNA gene sequence similarity and 96.8 % gyrB sequence similarity to S. decolorationis S12 T, respectively. The 16S rRNA gene sequence similarity values between strain S7-3 T and other members of the genus Shewanella were in the range of 93.0-98.0 %. Strain S7-3 T contained simultaneously both menaquinones (MK) and ubiquinones (Q); the predominant menaquinone was MK-7 and the predominant ubiquinones were Q-7 and Q-8. The fatty acid profiles of strain S7-3 T and S. decolorationis JCM 21555 T were similar; major components were C 17:1 ω8c, iso-C 15:0 and iso-C 15:0 2-OH and/or C 16:1 ω7c. The DNA G+C content of strain S7-3 T was 51.8 mol% and its mean DNA-DNA relatedness value with S. decolorationis JCM 21555 T was 43 %. Differential phenotypic properties of strain S7-3 T, together with the phylogenetic and genetic distinctiveness, revealed that this strain is distinguishable from recognized Shewanella species. On the basis of the data presented, strain S7-3 T is considered to represent a novel Shewanella species, for which the name Shewanella seohaensis sp. nov. is proposed. The type strain is S7-3 T (=KCTC 23556 T = CCUG 60900 T).
Novel speciesPolyphasic taxonomyShewanella seohaensisTidal flat
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Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
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