Affiliation:
1. Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea
Abstract
Two Gram-negative, non-spore-forming, slightly halophilic strains, SW-135T and SW-161T, which were isolated from a tidal flat of the Yellow Sea in Korea, were subjected to a polyphasic taxonomic study. The two isolates lacked bacteriochlorophyll a and contained ubiquinone-10 (Q-10) as the predominant respiratory lipoquinone and C18 : 1
ω7c and C17 : 1
ω6c as the major fatty acids. The DNA G+C contents of strains SW-135T and SW-161T were 62·2 and 64·5 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that the two strains fall within the radiation of the cluster comprising Erythrobacter species. Strains SW-135T and SW-161T exhibited a 16S rRNA gene sequence similarity value of 96·9 % and a mean DNA–DNA relatedness level of 12·3 %. Sequence similarities between strains SW-135T and SW-161T and the type strains of recognized Erythrobacter species ranged from 96·7 to 98·5 %. Levels of DNA–DNA relatedness were low enough to indicate that strains SW-135T and SW-161T represent members of two species separate from all recognized Erythrobacter species. On the basis of polyphasic taxonomic data, strains SW-135T (=KCTC 12228T=DSM 16221T) and SW-161T (=KCTC 12227T=DSM 16225T) were classified as two novel Erythrobacter species, for which the names Erythrobacter seohaensis sp. nov. and Erythrobacter gaetbuli sp. nov. are proposed, respectively.
Subject
General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology
Cited by
45 articles.
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