1887

Abstract

Four Gram-negative, non-spore-forming, slightly halophilic rods (strains SW-62, SW-74, SW-63 and SW-72) with appendages were isolated from a salt lake near Hwajinpo Beach on the East Sea in Korea, and subjected to a polyphasic taxonomic analysis. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-62, SW-74, SW-63 and SW-72 formed a coherent cluster with . Strains SW-62 and SW-74 had the same 16S rRNA gene sequence, as did strains SW-63 and SW-72. The level of 16S rRNA gene sequence similarity between strains SW-62 and SW-63 was 97·0 %. Strains SW-62 and SW-63 exhibited 16S rRNA gene similarity levels of 96·5 and 98·3 %, respectively, with respect to DSM 13258. The predominant isoprenoid quinone found in the four isolates and DSM 13258 was MK-6. The four strains contained iso-C 3-OH, iso-C and iso-C as the major fatty acids. Their DNA G+C contents were 44·1–45·4 mol%. The levels of DNA–DNA relatedness indicated that strains SW-62 and SW-74 and strains SW-63 and SW-72 were members of two species that were different from . On the basis of phenotypic and phylogenetic data and genomic distinctiveness, strains SW-62 and SW-74 and strains SW-63 and SW-72 were placed in the genus as two distinct novel species, for which the names sp. nov. (type strain, SW-62=KCCM 41645=JCM 11812) and sp. nov. (type strain, SW-63=KCCM 41646=JCM 11811), respectively, are proposed.

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2005-05-01
2021-03-04
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