Two heterotrophic, agarolytic bacteria were isolated from marine environments. A 16S rRNA gene sequence analysis showed the isolates (designated strains J42-3A and 04OZ-AS15-7A) to be positioned in a separate lineage within the genus . Members of the genus are recognized as being psychrophilic or psychrotolerant, whereas none of the currently established species is known to be agarolytic. The DNA G+C contents of the isolates were about 42 mol% and the predominant cellular fatty acids were 16 : 17 and 16 : 0. Based on the results of the phylogenetic and phenotypic analyses and DNA–DNA hybridization data, the isolates represent a novel species, for which the name sp. nov. is proposed. The type strain is J42-3A (=NBRC 104585=KCTC 22285).


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