sp. nov., isolated from deep-sea sediment of the Pacific Ocean.

A taxonomic study was carried out on strain PA15-N-34, which was isolated from deep-sea sediment of Pacific Ocean. The bacterium was Gram-stain-positive, oxidase- and catalase-positive and rod-shaped. Growth was observed at salinity of 0-15.0% NaCl and at temperatures of 10-45 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain PA15-N-34 belonged to the genus , with the highest sequence similarity to MTEO17 (97.7 %), followed by 19 m-6 (97.3 %) and 12 other species of the genus (93.4 %-97.0 %). The average nucleotide identity and DNA-DNA hybridization values between strain PA15-N-34 and type strains of the genus were 71.46-81.78% and 18.7-25.2 %, respectively. The principal fatty acids (>10 %) were summed feature 8 (C 7 and/or C 6; 31.2 %), C (25.0 %) and summed feature 3 (14.6 %). The DNA G+C content was 57.15 mol%. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, four unidentified aminolipids and three unidentified lipids. The novel strain can be differentiated from its closest type strain by a negative test for urease and the presence of diphosphatidylglycerol and aminolipid. The combined genotypic and phenotypic data show that strain PA15-N-34 represents a novel species within the genus , for which the name sp. nov. is proposed, with the type strain PA15-N-34 (=MCCC 1A14738=KCTC 72163).