Flectobacillus lacus sp. nov., isolated from a highly eutrophic pond in Korea

School of Earth and Environmental Sciences, Seoul National University, Shillim-dong, Kwanak-gu, Seoul 151-742, Republic of Korea Correspondence Byung C. Cho bccho{at}snu.ac.kr A Gram-negative, almost straight, rod-shaped, non-motile bacterium, designated CL-GP79 T , was isolated from a highly eutrophic pond located within the campus of Seoul National University, Korea. Phylogenetic analyses based on 16S rRNA gene sequencing showed that strain CL-GP79 T belongs to the family Flexibacteraceae , with Flectobacillus major as its closest relative (similarity of 95.7 %). The cellular fatty acids consist mainly of C 16 : 1 5 c (mean± SD , 26.9±10.8 %), iso-C 15 : 0 2-OH and/or C 16 : 1 7 c (19.2±2.3 %) and iso-C 15 : 0 (12.1±1.3 %). The DNA G+C content was found to be 38.3 mol%. Phenotypic, chemotaxonomic and phylogenetic analyses indicated that strain CL-GP79 T could be assigned to the genus Flectobacillus , but could be distinguished from F. major . The strain CL-GP79 T therefore represents a novel species, for which the name Flectobacillus lacus sp. nov. is proposed, with CL-GP79 T (=KCCM 42271 T =JCM 13398 T ) as the type strain. The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain CL-GP79 T is DQ112352 . Selected phenotypic characteristics of strain CL-GP79 T and Flectobacillus major DSM 103 T are available in a supplementary table in IJSEM Online.