Phenotypic data indicate that gliding, yellow/orange-pigmented, agar-digest bacterial strains were members of the (CFB) group. The strains were isolated from the surface of the marine benthic macroalga and the surrounding seawater at three localities Danish waters. The bacteria were Gram-negative, flexirubin-negative, aerobic, catalase-positive and oxidase-negative and were psychrophilic and halophilic. All strains utilized -fructose, -fucose and α-ketobutyric acid and degraded alginic acid, carrageenan, starch and autoclaved yeast cells. Amplification with primers specific for repetitive extragenic palindromic elements by PCR divided the strains of this study into two groups. Both groups showed unique PCR amplification patterns compared to reference strains of the CFB group. Phylogenetic analysis of 16S rDNA sequences showed association of these organisms and [ at the genus level. Hybridization of total chromosomal DNA revealed that the new strains and [ ATCC 23178 were clearly distinct from each other and other previously described species of the CFB group. A new genus is described, gen. nov. comprising two new species, gen. nov., sp. nov. (NN015840 = LMG 18535) and gen. nov., sp. nov. (NN015860 = LMG 18536), as well as the emendation of [ to gen. nov., comb. nov.


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