Eudoraea adriatica gen. nov., sp. nov., a novel marine bacterium of the family FlavobacteriaceaeReportar como inadecuado

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* Corresponding author 1 OOB - Observatoire océanologique de Banyuls

Abstract : A novel aerobic, non-motile, Gram-negative bacterium, designated AS06-20aT, was isolated from coastal waters of the Adriatic Sea and subjected to polyphasic taxonomic analysis. Cells were rod-shaped and formed non-pigmented punctiform colonies on agar plates. The novel isolate grew heterotrophically on a variety of carbon compounds, including organic acids, carbohydrates, polyols, amino acids and complex organic substrates. Cells grew at 15-33 degrees C optimum 30 degrees C, pH 6.5-8.5 optimum pH 7.5-8.0 and between 2 and 6 % w-v NaCl optimum 2 %. The dominant fatty acids >5 % detected in strain AS06-20aT were iso-C15 : 1 G, iso-C15 : 0, iso-C15 : 0 3-OH, iso-C17 : 1omega9c and iso-C17 : 0 3-OH. The major respiratory quinone was MK-6. The G+C content of the genomic DNA was 38.9 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain AS06-20aT fell within the family Flavobacteriaceae in the phylum Bacteroidetes. Comparative 16S rRNA gene sequence analysis indicated that strain AS06-20aT was most closely related to members of the genera Zeaxanthinibacter and Robiginitalea, sharing 92-93 % 16S rRNA gene sequence similarity with representatives of these genera. It is proposed, from the results of the polyphasic taxonomic analysis, that the strain should be placed in a new genus, Eudoraea gen. nov., with Eudoraea adriatica sp. nov. as the type species. The type strain is AS06-20aT =DSM 19308T=CIP 109577T=OOB 358T.

Autor: Karine Alain - Laurent Intertaglia - Philippe Catala - Philippe Lebaron -



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