Winogradskyella lutea sp. nov., isolated from seawater, and emended description of the genus Winogradskyella

Abstract

A novel gram-negative, orange-pigmented, rod-shaped, strictly aerobic, gliding, oxidase- and catalase-positive bacterial strain, A73(T), was isolated from seawater collected off Jeju, South Korea. 16S rRNA gene sequence similarity between A73(T) and type strains of Winogradskyella species with validly published names ranged from 94.1 to 96.2 %. The dominant fatty acids of strain A73(T) were iso-C(15 : 1) G (19.1 %), iso-C(15 : 0) (13.3 %), iso-C(17 : 0) 3-OH (10.0 %) and iso-C(15 : 0) 3-OH (7.2 %). The DNA G+C content of strain A73(T) was 36.0 mol% and its major respiratory quinone was MK-6. On the basis of combined data from phenotypic and phylogenetic analyses, strain A73(T) represents a novel species of the genus Winogradskyella, for which the name Winogradskyella lutea sp. nov. is proposed. The type strain is A73(T) ( = KCTC 23237(T) = DSM 22624(T)). An emended description of the genus Winogradskyella is also provided.