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Abstract

A marine, Gram-negative, aerobic, motile, straight-rod-shaped, moderately halophilic bacterium, designated strain DD-M3, was isolated from sea sand in Pohang, Korea. A phylogenetic tree based on 16S rRNA gene sequences showed that the strain fell within the evolutionary radiation encompassed by the genus . The levels of 16S rRNA gene sequence similarity between the novel strain and the type strains of recognized species ranged from 94.2 to 97.6 %, the highest values being with SW-145 (97.6 %) and SM19 (96.8 %). The values for DNA–DNA relatedness between isolate DD-M3 and the type strains of the most closely related species, and , were 41 and 36 %, respectively. Strain DD-M3 was characterized as having Q-9 as the predominant respiratory quinone and 16 : 0, summed feature 3 and 18 : 19 as the main fatty acids. The DNA G+C content was 54.1 mol%. On the basis of its phenotypic and genotypic characteristics, DD-M3 represents a novel species of the genus , for which the name sp. nov. is proposed, with DD-M3 (=KACC 11513=DSM 17924) as the type strain.

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2006-11-01
2019-10-13
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Transmission electron micrograph of cells of strain DD-M3 . Bar, 500 nm.

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Cellular fatty acid composition of strains. [PDF](55 KB)

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