sp. nov., sp. nov. and sp. nov. isolated from UV-irradiated soil in Korea.

Three novel bacterial strains, 172403-2, BT310 and BT731, were isolated from UV-irradiated soil samples collected in South Korea. All strains are Gram-negative, aerobic, non-motile and grow at 20-35 °C, optimally at 30 °C and pH 7.0. The optimal NaCl concentration for strains 172403-2 and BT310 is 1.5%, while strain BT731 grows optimally in the absence of NaCl (0.0%). Phylogenetic analysis based on 16S rRNA gene sequences positioned these strains within the genus , with strain 172403-2 closest to (95.96%), BT310 to (97.87%) and BT731 to (98.06%). Cellular fatty acid profiles identified C iso and Summed Feature 4 as predominant fatty acids. All strains contained ubiquinone MK-7 and phosphatidylethanolamine as major respiratory quinone and primary polar lipids, respectively. Genome sizes were 5.08 Mb for 172403-2, 4.29 Mb for BT310 and 4.66 Mb for BT731, with average nucleotide identity and digital DNA-DNA hybridization values with other species ranging between 70.41%-88.56% and 11.55%-24.66%, respectively. These biochemical, chemotaxonomic and phylogenetic analyses confirm that strains 172403-2, BT310 and BT731 represent three novel species of , proposed as sp. nov. (172403-2 = KCTC 62072 =NBRC 114967), sp. nov. (BT310 = KCTC 72363 = NBRC 114846) and sp. nov. (BT731 = KCTC 92910 = NBRC 116069).