A novel Gram-stain-negative, aerobic, rod-shaped, convex, and light pink-colored strain BT688T was isolated from a soil sample collected in Jeongseon City, South Korea. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain BT688T 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 BT688T and Microvirga aerilata 5420S-16T was 98.5%. Strain BT688T 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 BT688T were C18:1 ω7c (76.0%) and summed feature 3 (9.6%). Based on the polyphasic characteristics, strain BT688T represents a novel bacterial species within the genus Microvirga and the proposed name is Microvirga jeongseonensis. The type strain of Microvirga jeongseonensis is BT688T (= KCTC 82701T = NBRC 114857T).
Keywords: Methylobacteriaceae; Microvirga; Novel species; Taxonomy.
© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.