1887

Abstract

A Gram-negative, neutrophilic and rod-shaped bacterium, strain ZH17, was isolated from a marine sediment of the East China Sea and subjected to a polyphasic taxonomic characterization. The isolate grew in the presence of 0–7.5 % (w/v) NaCl and at pH 6.5–9.0; optimum growth was observed with 0.5–3.0 % (w/v) NaCl and at pH 7.5. Chemotaxonomic analysis showed ubiquinone-10 as predominant respiratory quinone and C 7, 11-methyl C 7, C, C 3-OH and C 2-OH as major fatty acids. The genomic DNA G+C content was 63.5 mol%. Comparative 16S rRNA gene sequence analysis revealed that the isolate belongs to the genus . Strain ZH17 exhibited the closest phylogenetic affinity to the type strain of , with 97.2 % sequence similarity, and less than 97 % sequence similarity with respect to other described species of the genus . The DNA–DNA reassociation value between strain ZH17 and DSM 15171 was 50.7 %. On the basis of phenotypic and genotypic data, strain ZH17 represents a novel species of the genus , for which the name sp. nov. (type strain ZH17 =CGMCC 1.9108 =JCM 16262) is proposed.

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2011-02-01
2019-12-13
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Transmission electron micrograph of a cell of strain ZH17 , isolated from an exponential phase culture. Bar, 0.5 µm.

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