title: Psychrobacter aestuarii sp. nov., isolated from a tidal flat sediment.
abstract: A Gram-negative-staining, non-motile, non-spore-forming and strictly aerobic bacterial strain, SC35(T), was isolated from tidal flat sediment collected from the South Sea, Korea, and subjected to a taxonomic study using a polyphasic approach. The organism grew optimally at 20-30 degrees C and with 1-2 % (w/v) NaCl. Strain SC35(T) contained ubiquinone-8 as the predominant respiratory lipoquinone and C(18 : 1)omega9c as the major fatty acid. The DNA G+C content was 48.5 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain SC35(T) formed a lineage within the genus Psychrobacter (94.3-96.5 % sequence similarity), forming a distinct branch in a clade also containing Psychrobacter pacificensis NIBH P2K6(T) and Psychrobacter celer SW-238(T). On the basis of phenotypic and phylogenetic data, strain SC35(T) (=KCTC 22503(T)=JCM 16343(T)) was placed in the genus Psychrobacter as the type strain of a novel species, for which the name Psychrobacter aestuarii sp. nov. is proposed.
authors.affiliation: Department of Biological Science, College of Life Science and Natural Resources, Sunchon National University, Suncheon 540-742, Republic of Korea.
authors.forename: Keun Sik
authors.initials: KS
authors.lastname: Baik
authors.affiliation: Department of Biological Science, College of Life Science and Natural Resources, Sunchon National University, Suncheon 540-742, Republic of Korea.
authors.forename: Seong Chan
authors.initials: SC
authors.lastname: Park
authors.affiliation: Department of Biological Science, College of Life Science and Natural Resources, Sunchon National University, Suncheon 540-742, Republic of Korea.
authors.forename: Chae Hong
authors.initials: CH
authors.lastname: Lim
authors.affiliation: Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 52 Oun-dong, Yuseong, Daejeon 305-333, Republic of Korea.
authors.forename: Kang Hyun
authors.initials: KH
authors.lastname: Lee
authors.affiliation: Microbiology Division, Jeollanam-do Institute of Health and Environment, Gwangju, 502-810, Republic of Korea.
authors.forename: Doo Young
authors.initials: DY
authors.lastname: Jeon
authors.affiliation: Microbiology Division, Jeollanam-do Institute of Health and Environment, Gwangju, 502-810, Republic of Korea.
authors.forename: Choong Mo
authors.initials: CM
authors.lastname: Kim
authors.affiliation: Department of Biological Science, College of Life Science and Natural Resources, Sunchon National University, Suncheon 540-742, Republic of Korea.
authors.forename: Chi Nam
authors.initials: CN
authors.lastname: Seong
mesh_terms: D001483:Base Sequence; D005227:Fatty Acids / Q000032:analysis; D019015:Geologic Sediments / Q000382:microbiology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D044096:Psychrobacter / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*
chemical_list: D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S