Chryseobacterium daeguense sp. nov., isolated from wastewater of a textile dye works

Abstract

A Gram-negative, rod-shaped bacterial strain, K105T, was isolated from wastewater of a textile dye works in Korea and subjected to a polyphasic; taxonomic study. Strain K105T grew optimally at pH 6.5-7.5 and 30-37 °C. It contained MK-6 as the predominant menaquinone and iS0-C15:01 iSO-C17:1ω9c, iS0-C17:0 3-OH and summed feature 3 (C16:1ω7c and/or iso-C15:0 2-OH) as the maior fatty acids. The DNA G+C content was 36.8 mol%. Phylogenetic: analysis based on 16S rRNA gene sequences showed that strain K105T belonged to the genus Chryseobacterium. Strain K105T exhibited 16S rRNA gene sequence similarity values of less than 96.9% to the type strains of recognized Chryseobacterium species. Strain K105T differed from phylogenetically related Chryseobacterium species in several phenotypic properties. On the basis of phenotypic and phylogenetic data, strain K105T (=KCTC 12841T=JCM 14362T) is placed in the genus Chryseobacterium as the type strain of a novel species, for which the name Chryseobacterium daeguense sp. nov. is proposed.