Soonwooa purpurea sp. nov., isolated from a fresh water river

A pale-brown-coloured, rod-shaped, non-motile, and Gram-reaction-negative bacterium, strain I54^T, was isolated from a water sample of a freshwater river in Iksan, Republic of Korea. The phylogenetic affiliation based on 16S rRNA gene sequence analysis showed that strain I54^T belonged to the genus Soonwooa of the family Flavobacteriaceae with a sequence similarity of 97.5% to Soonwooa buanensis HM0024^T. The major fatty acids (>5 %) of strain I54^T were iso-C_15:0, anteiso-C_15:0, summed feature 3 (C_16:1ω7c/C_16:1ω6c) and iso-C_17:0 3-OH. Phosphatidylethanolamine, one aminolipid and two unknown lipids were the major polar lipids. The G+C content of the genomic DNA was 34.2 (±0.3)mol% and MK6 was the sole respiratory quinone. On the basis of its molecular and phenotypic characteristics, strain I54^T represents a novel species in the genus Soonwooa, for which the name Soonwooa purpurea sp. nov. is proposed. The type strain is I54^T (=KCTC 52722^T =JCM 31880^T).