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Abstract

A novel -like bacterial strain, SMK-4, was isolated from a tidal flat sediment in Korea. Strain SMK-4 was Gram-negative, pale yellow-pigmented and rod-shaped. It grew optimally at 30–37 °C and in the presence of 2–3 % (w/v) NaCl. It contained MK-6 as the predominant menaquinone and iso-C, iso-C 3-OH and C 7 and/or iso-C 2-OH as the major fatty acids (>10 % of total fatty acids). The DNA G+C content was 33.6 mol%. Phylogenetic trees based on 16S rRNA gene sequences showed that strain SMK-4 fell within the evolutionary radiation encompassed by the genus . Strain SMK-4 exhibited 16S rRNA gene sequence similarity levels of 95.2–98.6 % with respect to the type strains of recognized species. DNA–DNA relatedness levels and differential phenotypic properties made it possible to categorize strain SMK-4 as a species that is separate from previously described species. On the basis of phenotypic properties and phylogenetic and genetic distinctiveness, strain SMK-4 (=KCTC 12569=JCM 13491) should be classified as a novel species, for which the name sp. nov. is proposed.

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2006-07-01
2019-12-08
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vol. , part 7, pp. 1577-1581

Levels of DNA-DNA relatedness between strain SMK-4 and the type strains of some phylogenetically related species. [PDF](10 KB)



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