RT Journal Article SR Electronic(1) A1 Ivanova, Elena P. A1 Alexeeva, Yulia V. A1 Flavier, Sébastien A1 Wright, Jonathan P. A1 Zhukova, Natalia V. A1 Gorshkova, Natalia M. A1 Mikhailov, Valery V. A1 Nicolau, Dan V. A1 Christen, RichardYR 2004 T1 Formosa algae gen. nov., sp. nov., a novel member of the family Flavobacteriaceae JF International Journal of Systematic and Evolutionary Microbiology, VO 54 IS 3 SP 705 OP 711 DO https://doi.org/10.1099/ijs.0.02763-0 PB Microbiology Society, SN 1466-5034, AB Four light-yellow-pigmented, Gram-negative, short-rod-shaped, non-motile isolates were obtained from enrichment culture during degradation of the thallus of the brown alga Fucus evanescens. The isolates studied were chemo-organotrophic, alkalitolerant and mesophilic. Polar lipids were analysed and phosphatidylethanolamine was the only phospholipid identified. The predominant cellular fatty acids were 15 : 0, i15 : 0, ai15 : 0, i15 : 1 and 15 : 1(n-6). The DNA G+C contents of the four strains were 34·0–34·4 mol%. The level of DNA relatedness of the four isolates was conspecific (88–98 %), indicating that they belong to the same species. The 16S rDNA sequence of strain KMM 3553T was determined. Phylogenetic analysis revealed that KMM 3553T formed a distinct phyletic line in the phylum Bacteroidetes, class Flavobacteria in the family Flavobacteriaceae and that, phylogenetically, this strain could be placed almost equidistant from the genera Gelidibacter and Psychroserpens (16S rRNA gene sequence similarities of 94 %). On the basis of significant differences in phenotypic and chemotaxonomic characteristics, it is suggested that the isolates represent a novel species in a new genus; the name Formosa algae gen. nov., sp. nov. is proposed. The type strain is KMM 3553T (=CIP 107684T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.02763-0