A bacterial strain, designated RS.Sph.026, was isolated from mucus of the coral collected from the northern Red Sea (Gulf of Eilat, Israel). The bacterium was found to be Gram-negative, non-motile, halotolerant and heterotrophic. Comparative 16S rRNA gene sequence analyses showed that strain RS.Sph.026 belonged to the order , with the highest levels of 16S RNA gene sequence similarity with (92 %). Strain RS.Sph.026 grew optimally at a salinity of 3–4 %, pH 7.5–8 and 25–30 °C. The major cellular fatty acids were -7-octadecenoic acid (C 7; 57.2 %) and C cyclo 8 (15.5 %). The DNA GC content of strain RS.Sph.026 was 67.1 mol%. On the basis of its phenotypic properties and phylogenetic distinctiveness, strain RS.Sph.026 represents a novel genus and species in the order , for which the name gen. nov., sp. nov. is proposed. The type strain is RS.Sph.026 (=LMG 24307=DSM 19760).


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