Erythrobacter oryzae sp. nov., isolated from rice paddy soil

Two novel bacterial strains, designated as COR-2 and CR-8, were isolated from paddy soil. These isolates were aerobic, Gram-stain-negative, non-spore-forming, non-motile, rod-shaped, and formed orange-coloured colonies. Phylogenetic analysis based on 16S rRNA gene sequences showed that two strains formed a clear phylogenetic lineage with the genus . Strains COR-2 and CR-8 showed 99.9 % 16S rRNA gene sequence similarity. Both strains had the highest 16S rRNA gene similarity of 99.1-99.7 % to TPW-24 , SW-132 and DSM 10594 , respectively. The genome of strain COR-2 comprised 3 559 918 bp and the genomic DNA G + C content was 67.7 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strain COR-2 and its closely related species of the genus were 79.3-85.5% and 24.1-29.1 %, respectively. The major respiratory quinone was Q-10, while the major fatty acids were C 7 and C 6 . The major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, two unidentified phospholipids and eight unidentified lipids. Based on phylogenetic and phenotypic considerations, the two strains [COR-2 (type strain; = KACC 22941 =JCM 35529 ) and CR-8 (= KACC 22945=JCM 35530)] are considered to represent novel species of the genus , for which the name sp. nov. is proposed.