Paracoccus subflavus sp. nov., isolated from Pacific Ocean sediment

A Gram-stain-negative, short rod-shaped, non-motile, catalase- and oxidase-positive, aerobic bacterium, designated GY0581 T , was isolated from marine sediment sampled from the Western Pacific Ocean. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain GY0581 T belonged to the genus Paracoccus and had the highest levels of sequence similarity to Paracoccus sediminis JCM 18467 T (98.2 %). Levels of similarity between strain GY0581 T and other Paracoccus species were lower than 97.0 %. The average nucleotide identity and the DNA-DNA hybridization values between strain GY0581 T and P. sediminis JCM 18467 T were 83.9 and 27 %, respectively, which are below the respective thresholds for species differentiation. The major cellular fatty acid was C18 : 1ω7c (79.5 %). The only isoprenoid quinone was Q-10. The polar lipid pattern indicated the presence of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, three unidentified phospholipids, three unidentified aminolipids, one unidentified glycolipid and two unidentified lipids. The DNA G+C content of strain GY0581 T was 65.6 mol%. On the basis of polyphasic characterization, it is concluded that strain GY0581 T represents a novel species of the genus Paracoccus, for which the name Paracoccus subflavus sp. nov. is proposed. The type strain is GY0581 T (=KCTC 42710 T =MCCC 1A10575 T ).