1887

Abstract

A novel Gram-stain-negative, rod-shaped bacterial strain, designated KX27, was isolated from deep-sea sediment of the Okinawa Trough and characterized on the basis of a polyphasic taxonomic approach. The phenotypic features of strain KX27 were similar to those of members of the genus Shewanella . Strain KX27 exhibited highest 16S rRNA gene sequence similarity (98.37 %) to Shewanella basaltis JCM 14937. Levels of gyrB gene sequence similarity between strain KX27 and its closest genetic neighbours were lower than 90 %, the species cut-off value for Shewanella . The DNA–DNA hybridization value between strain KX27 and S. basaltis JCM 14937 (54 %) was lower than the accepted species threshold. The predominant cellular fatty acids of strain KX27 were summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), C17 : 1 ω8c, summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and iso-C15 : 0. The major polar lipids of strain KX27 were phosphatidylethanolamine and phosphatidylglycerol. On the basis of combined phenotypic, chemotaxonomic and phylogenetic analysis, strain KX27 represents a novel species of the genus Shewanella , for which the name Shewanella inventionis sp. nov. is proposed. The type strain is KX27 (=KCTC 42807=CGMCC 1.15339).

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2016-12-01
2019-10-22
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