sp. nov., isolated from a river.

A Gram-stain-negative, rod-shaped, motile, facultatively aerobic and ivory-pigmented bacterium (designated strain LA-55) was isolated from a river in the Republic of Korea. On the basis of 16S rRNA gene sequencing, strain LA-55 clustered with species of the genus and was closely related to KSL-102 (97.3 %), DSM 4731 (97.1 %), NHI-13 (97.0 %), FDRGB2b (97.0 %) and DSM 17977 (97.0 %). The average nucleotide identity value between strain LA-55 and its closest-related strain was 74.1 %, indicating that strain LA-55 represents a novel species of the genus . Growth occurred at 15-40 °C on Reasoner's 2A medium in the presence of 0-2 % NaCl (w/v) and at pH 6.0-8.0. The genomic DNA G+C content was 70.5 mol% and ubiquinone 10 (Q-10) was the major respiratory quinone. The major cellular fatty acids (>5 %) were C 6 and/or C 7 (summed feature 8), C, C 6 and/or C 7 (summed feature 3) and C 7 11-methyl. The polar lipids consisted of phosphatidylglycerol, 1,2-di--acyl-3--[d-glucopyranosyl-(1→4)--d-glucopyranuronosyl]glycerol, 1,2-di--acyl-3--d-glucopyranuronosyl glycerol, unidentified aminolipid, unidentified phosphoglycolipid and unidentified lipids. Physiological and biochemical characteristics indicated that strain LA-55 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is LA-55 (=KACC 19639=LMG 30850).