Two novel Gram-stain-negative, aerobic, rod-shaped, circular, convex, light-pink and white-colored bacterial strains BT291^T and BT350^T were isolated from soil collected in Uijeongbu city (37° 44′ 55″ N, 127° 2′ 20″ E) and Jeju island (33° 22′ 48″ N, 126° 31′ 48″ E), respectively, South Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that each of the strains BT291^T and BT350^T belong to a distinct lineages within the genus Microvirga (family Methylobacteriaceae, order Rhizobiales, class Alpha Proteobacteria, phylum Proteobacteria, kingdom Bacteria). The 16S rRNA gene sequence similarity between the two strains BT291^T and BT350^T was 97.4%. The two strains were found to have the same quinone system, with Q-10 as the major respiratory quinone. The major polar lipids of strains BT291^T and BT350^T were phosphatidylethanolamine (PE), diphosphatydilglycerol (DPG), phosphatidylcholine (PC) and phosphatidylglycerol (PG). The major cellular fatty acids of strain BT291^T were C_18:1 ω7c (58.2%) and cyclo-C_19:0 ω8c (25.7%). The major cellular fatty acids of strain BT350^T were C_18:1 ω7c (38.5%) and cyclo-C_19:0 ω8c (27.7%). Based on the polyphasic analysis (phylogenetic, chemotaxonomic and biochemical), strains BT291^T and BT350^T can be suggested as two novel bacterial species within the genus Microvirga and the proposed names are Microvirga pudoricolor and Microvirga alba, respectively. The type strain of Microvirga pudoricolor is BT291^T (= KCTC 72368^T = NBRC 114845^T) and the type strain of Microvirga alba is BT350^T (= KCTC 72385^T = NBRC 114848^T).

两种新型革兰氏染色阴性，好氧，棒状，圆形，凸形，浅粉红色和白色的细菌菌株BT291 ^Ť和BT350 ^Ť从在议政府市采集的土壤分离出（37°44'55“N，127 ° 2 ′ 20 ″ E) 和济州岛 (33 ° 22 ′ 48 ″ N，126 ° 31 ′ 48 ″ E)，分别是韩国。基于16S rRNA基因序列的系统发育分析表明，每种菌株BT291的^Ť和BT350 ^Ť属于属内的不同的谱系Microvirga（家庭Methylobacteriaceae，为了根瘤菌目，类α-变形菌，门变形菌，王国细菌）。两个菌株BT291之间的16S rRNA基因序列相似^Ť和BT350 ^Ť为97.4％。发现这两种菌株具有相同的醌系统，Q-10 作为主要的呼吸醌系统。株BT291的主要极性脂质^ŧ和BT350^牛逼是磷脂酰乙醇胺（PE），diphosphatydilglycerol（DPG），磷脂酰胆碱（PC）和磷脂酰甘油（PG）。BT291 ^T菌株的主要细胞脂肪酸是 C _{18: 1} ω 7 c (58.2%) 和环-C _{19: 0} ω 8 c (25.7%)。菌株 BT350 ^T的主要细胞脂肪酸为 C _{18: 1} ω7 c (38.5%) 和环-C _{19: 0} ω 8 c (27.7%)。基于该多相分析（系统发育，化学分类和生物化学），菌株BT291 ^Ť和BT350 ^Ť可被建议为属内的两个新的细菌物种Microvirga和所提出的名称为Microvirga pudoricolor和Microvirga粉，分别。的类型应变Microvirga pudoricolor是BT291 ^Ť（= KCTC 72368 ^Ť  = NBRC 114845 ^Ť）和类型应变Microvirga粉是BT350 ^Ť（= KCTC 72385 ^Ť = NBRC 114848^吨）。