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Sediminibacterium salmoneum gen. nov., sp. nov., a member of the phylum Bacteroidetes isolated from sediment of a eutrophic reservoir

College of Biological Sciences, Key Laboratory of Agro-Microbial Resource and Application, Ministry of Agriculture, China Agricultural University, Beijing 100094, PR China

Correspondence
Hong-Li Yuan
hlyuan{at}cau.edu.cn

Strain NJ-44^T, isolated from sediment of the eutrophic Guanting Reservoir in Beijing (China), was subjected to a taxonomic study using a polyphasic approach. The strain was aerobic, with salmon-pink-pigmented colonies on R2A agar. Cells were single, Gram-negative rods, motile by gliding. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain NJ-44^T belonged to the phylum Bacteroidetes, with Terrimonas ferruginea ATCC 13524^T (90.8 % similarity), Terrimonas lutea DY^T (90.5 %) and Niabella aurantiaca R2A15-11^T (89.1 %) as its closest relatives. Strain NJ-44^T was clearly differentiated from members of the genera Terrimonas and Niabella in its DNA G+C content (40.6 mol%) and its major fatty acids, iso-C_{15 : 1} G, iso-C_{15 : 0}, anteiso-C_{15 : 0}, iso-C_{16 : 0} 3-OH, iso-C_{17 : 0} 3-OH, anteiso-C_{15 : 1} A and iso-C_{15 : 0} 3-OH. It is proposed that strain NJ-44^T represents a novel genus and species, named Sediminibacterium salmoneum gen. nov., sp. nov. The type strain of Sediminibacterium salmoneum is strain NJ-44^T (=CGMCC 1.6845^T =NBRC 103935^T).

Maximum-parsimony and minimum-evolution phylogenetic trees based on 16S rRNA gene sequences are available as supplementary material with the online version of this paper.

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