Ferrimonas sediminum sp. nov., isolated from coastal sediment of an amphioxus breeding zone.

A Gram-stain-negative, facultatively anaerobic rod with a polar flagellum, designated strain JYr13(T), was isolated from coastal sediment of an amphioxus breeding zone located in Qingdao, China. The isolate utilized Fe(III) oxyhydroxide, Fe(III) citrate, SeO3(2-) and SeO4(2-) as electron acceptors. Strain JYr13(T) grew optimally at 25-28 °C, pH 7.0-8.0 and in presence of 3 % (w/v) NaCl. Strain JYr13(T) contained menaquinone-7 and ubiquinones Q-7 and Q-8 as the predominant isoprenoid quinones, and C18 : 1ω9c, iso-C15 : 0, C17 : 1ω8c and C16 : 0 as the major fatty acids. The DNA G+C content of strain JYr13(T) was 59 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that the closest phylogenetic neighbour of strain JYr13(T) was Ferrimonas kyonanensis DSM 18153(T) (96.0 % 16S rRNA gene sequence similarity). Based on the phenotypic, chemotaxonomic and phylogenetic distinctiveness, strain JYr13(T) is considered to represent a novel species of the genus Ferrimonas, for which the name Ferrimonas sediminum sp. nov. is proposed. The type strain is JYr13(T) ( = DSM 23317(T) = LMG 25564(T)).