1887

Abstract

A Gram-stain-negative, aerobic, motile and rod-shaped or ovoid bacterial strain, designated JDTF-40, was isolated from a tidal flat in Jindo, an island of the Republic of South Korea. Strain JDTF-40 grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain JDTF-40 fell within the cluster comprising the type strains of Thalassotalea species. Strain JDTF-40 exhibited 16S rRNA gene sequence similarity values of 93.8–95.7 % to the type strains of Thalassotalea species. Strain JDTF-40 contained Q-8 as the predominant ubiquinone and summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and C16 : 0 as the major fatty acids. The major polar lipids of strain JDTF-40 were phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid, one unidentified glycolipid and three unidentified lipids. The DNA G+C content of strain JDTF-40 was 41.3 mol%. Differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain JDTF-40 is distinct from recognized species of the genus Thalassotalea . On the basis of the data presented here, strain JDTF-40 is considered to represent a novel species of the genus Thalassotalea , for which the name Thalassotalea insulae sp. nov. is proposed. The type strain is JDTF-40 (=KACC 19433=KCTC 62186=NBRC 113040).

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2018-02-28
2019-10-18
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