Comamonas suwonensis sp. nov., isolated from stream water in the Republic of Korea

A novel bacterial strain, EJ-4 , isolated from stream water collected at Seo-ho in Suwon, Republic of Korea, was characterized based on a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain EJ-4 belonged to the genus . The isolate is Gram-stain-negative, non-motile, aerobic, rod-shaped and forms pale yellow colonies on trypticase soy agar. The optimal growth of this strain was observed aerobically at 30 °C, pH 7 and 0.5 % NaCl. The major fatty acids were summed feature 3 (C 7 and/or C 6 ; 39.7 %) and C (32.0 %). The G+C content of strain EJ-4 was 58.4mol %. The average nucleotide identity and digital DNA-DNA hybridization values between strain EJ-4 and were 91.8 and 31.2 %, respectively. The major polar lipids detected in the isolate were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The predominant isoprenoid quinone was ubiquinone-8. Based on the results of polyphasic taxonomic analysis of strain EJ-4 , we describe a novel species of the genus , for which the name sp. nov. has been proposed, with EJ-4 (=KCTC 82074 =JCM 34179 =KEMB 1602-279 ) as the type strain.