Abstract
A novel bacterium, MTT-39(T), was isolated from a sample of marine sediment collected at Tottori on the coast of the Sea of Japan. Cells were Gram-negative, rod-shaped and non-motile. The bacterium formed yellowish brown colonies on marine agar 2216. Although the 16S rRNA gene sequence of strain MTT-39(T) classified this strain as a member of the family Flavobacteriaceae, the maximum sequence similarity obtained was only 91.5 % (with Kordia algicida OT-1(T)). In the maximum-likelihood tree based on 16S rRNA gene sequences, the novel bacterium clustered with the type strains of Kordia algicida, Lutibacter litoralis, Tenacibaculum maritimum and Polaribacter filamentus. The novel strain exhibited the following characteristics: the predominant fatty acids in cells grown on artificial seawater-based tryptic soya agar were iso-C(15 : 1), iso-C(15 : 0) and iso-C(15 : 0) 3-OH, the major respiratory quinone was MK-6 and the DNA G+C content was 35 mol%. On the basis of its distinct phenotypic traits and the phylogenetic distance between this marine isolate and other recognized taxa, strain MTT-39(T) represents a novel genus and species of the family Flavobacteriaceae, for which the name Fulvibacter tottoriensis gen. nov., sp. nov. is proposed. The type strain of the type species is MTT-39(T) (=NBRC 102624(T)=KCTC 22214(T)=CGMCC 1.7058(T)).
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