title: Arenimonas aestuariisp. nov., isolated from estuary sediment.
abstract: A novel species of the genusArenimonas, represented by strain S2-21T, was isolated from an estuary of Asan in South Korea. Cells of strain S2-21Twere Gram-stain-negative, aerobic, non-motile rods that were oxidase- and catalase-positive. Growth of strain S2-21Twas observed at 15-40 °C (optimum, 25-30 °C), at pH 7.0-8.0 (optimum, pH 7.0) and in the presence of 0-2.0 % (w/v) NaCl (optimum, 0 %). The major cellular fatty acids were iso-C15 : 0, C11 : 03-OH, iso-C16 : 0, summed feature 9 (comprising iso-C17 : 1ω9cand/or C16 : 010-methyl), anteiso-C17 : 0and iso-C11 : 0. The only respiratory quinone detected was ubiquinone-8 (Q-8) and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylmethylethanol and two unknown phospholipids. The G+C content of the genomic DNA was 62.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain S2-21Tformed a tight phyletic lineage withArenimonas donghaensisHO3-R19Twithin the genusArenimonas. Strain S2-21Twas related most closely toA. donghaensisHO3-R19Tat 98.1 % 16S rRNA gene sequence similarity and the mean DNA-DNA relatedness value between strain S2-21Tand the type strain ofA. donghaensiswas 23.6 ± 2.2 %. On the basis of phenotypic, chemotaxonomic and molecular features, strain S2-21Tis considered to represent a novel species of the genusArenimonas, for which the nameArenimonas aestuariisp. nov. is proposed. The type strain is S2-21T( = KACC 18504T= JCM 31129T).
authors.affiliation: Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
authors.forename: Hye Im
authors.initials: HI
authors.lastname: Jeong
authors.affiliation: Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.|Freshwater Bioresources Utilization Division, Nakdonggang National Institute of Biological Resources, Gyeongsangbuk-do 37242, Republic of Korea.
authors.forename: Hyun Mi
authors.initials: HM
authors.lastname: Jin
authors.affiliation: Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
authors.forename: Che Ok
authors.initials: CO
authors.lastname: Jeon