Lysobacter koreensis sp. nov., isolated from a ginseng field

Strain Dae16^T, a Gram-negative, non-spore-forming, rod-shaped bacterium, was isolated from the soil of a ginseng field in South Korea and characterized in order to determine its taxonomic position. 16S rRNA gene sequence analysis revealed that strain Dae16^T belongs to the Gammaproteobacteria and had the highest degree of sequence similarity to Lysobacter gummosus ATCC 29489^T (97.1 %), Lysobacter antibioticus DSM 2044^T (96.6 %), Lysobacter enzymogenes DSM 2043^T (96.2 %), Lysobacter concretionis KCTC 12205^T (94.7 %) and Lysobacter brunescens ATCC 29482^T (93.7 %). Chemotaxonomic data revealed that strain Dae16^T possesses a quinone system with Q-8 as the predominant compound and C_15:0 iso, C_16:0 iso and C_17:1 iso ω9c as the predominant iso-branched fatty acids, all of which corroborated the assignment of the strain to the genus Lysobacter. Results of DNA-DNA hybridization and physiological and biochemical tests clearly demonstrated that strain Dae16^T represents a distinct species. Based on these data, it is proposed that Dae16^T (= KCTC 12204^T = NBRC 101156^T) should be classified as the type strain of a novel Lysobacter species, Lysobacter koreensis sp. nov.