Formosa agariphila sp nov., a budding bacterium of the family Flavobacteriaceae isolated from marine environments, and emended description of the genus Formosa

Two marine, heterotrophic, aerobic, yellow-pigmented, agarolytic bacterial strains that are motile by means of gliding were isolated from the green alga Acrosiphonia sonderi and from sea water. Comparative 16S rRNA gene sequence analysis revealed an affiliation between the strains studied and the genus Formosa, a member of the family Flavobacteriaceae. The level of sequence similarity between strain KMM 3901(T) and Formosa algae KMM 3553(T) was 99.1%. The results of DNA-DNA hybridization experiments and phenotypic analysis indicated that the strains represent a novel species of the genus Formosa, for which the name Formosa agariphila sp. nov. is proposed, with KMM 3901(T) (= KCTC 12365(T) = LMG 23005(T) = DSM 15362(T)) as the type strain. The description of the genus Formosa is emended with newly obtained data.