A psychrophilic bacterium, previously described as sp. strain ABE-1, has been reassigned by phenotypic characterization, chemotaxonomic analysis and 16S rRNA phylogenetic analysis. The organism was curved rods and it could reduce nitrate to nitrite and hydrolyse gelatin and DNA, but not chitin. NaCI was required for growth. This strain was susceptible to the vibriostatic compound 0/129. The major isoprenoid quinone was ubiquinone-8 and the DNA G+C content was 39·4 mol%. The whole-cell fatty acids comprised saturated and monounsaturated fatty acids with 10–18 C atoms; saturated and monounsaturated C fatty acids were predominant. Strain ABE-1contained the unique -unsaturated fatty acid, 9--hexadecenoic acid. Although strain ABE-1has been identified as a species, the strain did not ferment glucose. Phylogenetic analysis based on 16S rRNA sequencing indicated that strain ABE-1was more closely related to species than to species. However, strain ABE-1differed from other reported species in terms of phylogenetic position, some phenotypic characteristics, chemotaxonomic analysis and relatedness by DNA-DNA hybridization. Accordingly, the name is proposed. The type strain is ABE-1(= JCM 10085).


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