Flavobacterium daejeonense sp. nov. and Flavobacterium suncheonense sp. nov., isolated from greenhouse soils in Korea.

Two yellow-pigmented, Gram-negative, rod-shaped bacterial strains, GH1-10(T) and GH29-5(T), were isolated from greenhouse soils in Korea. 16S rRNA gene sequence analysis indicated that these strains were related to members of the genus Flavobacterium. Strain GH1-10(T) was most closely related to Flavobacterium psychrolimnae and Flavobacterium denitrificans, with sequence similarities of 95.9 and 95.2 %, respectively. Strain GH29-5(T) was most closely related to "Flavobacterium saliodium", F. denitrificans and Flavobacterium frigoris, with sequence similarities of 94.3, 92.5 and 92.5 %, respectively. The major cellular fatty acids of GH1-10(T) were iso-C(15 : 0), summed feature 3 (iso-C(15 : 0) 2-OH and/or C(16 : 1)omega7c) and iso-C(17 : 0) 3-OH, and those of GH29-5(T) were iso-C(15 : 0), iso-C(17 : 0) 3-OH, iso-C(15 : 1) G and iso-C(15 : 0) 3-OH. Both strains contained menaquinone with six isoprene units (MK-6) as the sole quinone. The DNA G+C contents of GH1-10(T) and GH29-5(T) were 35 and 39 mol%, respectively. Based on the phylogenetic and phenotypic data presented, it is concluded that the two bacteria represent two separate novel species of the genus Flavobacterium. The names proposed to accommodate these organisms are Flavobacterium daejeonense sp. nov., with type strain GH1-10(T) (=KACC 11422(T)=DSM 17708(T)), and Flavobacterium suncheonense sp. nov., with type strain GH29-5(T) (=KACC 11423(T)=DSM 17707(T)).