1887

Abstract

Three Gram-negative, yellow-pigmented, rod-shaped bacterial strains, SMK-12, SMK-36 and SMK-45, were isolated from a tidal flat sediment of the Yellow Sea in Korea, and their taxonomic positions were investigated by a polyphasic approach. The three strains grew optimally at 25–30 °C and in the presence of 2–3 % (w/v) NaCl. They contained MK-6 as the predominant menaquinone. The major cellular fatty acids were iso-C, iso-C 3-OH, iso-C, anteiso-C, iso-C 3-OH and C 7 and/or iso-C 2-OH. The DNA G+C contents of the three strains were 34·7–34·9 mol%. The phylogenetic tree based on 16S rRNA gene sequences revealed that the three strains form one distinct evolutionary lineage supported by a bootstrap value of 100 % within the family . The three strains exhibited 16S rRNA gene sequence similarity levels of 93·8–94·9 % to the nearest phylogenetic neighbours, the genera , and . On the basis of differences in phenotypic characteristics and phylogenetic distinctiveness, strains SMK-12, SMK-36 and SMK-45 were classified in a novel genus and species, for which the name gen. nov., sp. nov. is proposed. The type strain for the novel species is SMK-12 (=KCTC 12379=DSM 17032).

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2005-09-01
2021-12-03
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