Microvirga jeongseonensis sp. nov., isolated from soil in South Korea.

A novel Gram-stain-negative, aerobic, rod-shaped, convex, and light pink-colored strain BT688 was isolated from a soil sample collected in Jeongseon City, South Korea. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain BT688 belongs to a distinct lineage within the genus Microvirga (family Methylobacteriaceae, order Rhizobiales, class Alphaproteobacteria, phylum Proteobacteria). The 16S rRNA gene sequence similarity between strain BT688 and Microvirga aerilata 5420S-16 was 98.5%. Strain BT688 had Q-10 as a major respiratory quinone and the major polar lipids were diphosphatidilglycerol (DPG), phosphatidylglycerol (PG), phosphatidylethanolamine (PE), and phosphatidylcholine (PC). The major cellular fatty acids of strain BT688 were C ω7c (76.0%) and summed feature 3 (9.6%). Based on the polyphasic characteristics, strain BT688 represents a novel bacterial species within the genus Microvirga and the proposed name is Microvirga jeongseonensis. The type strain of Microvirga jeongseonensis is BT688 (= KCTC 82701 = NBRC 114857T).