title: Psychroserpens mesophilus sp. nov., a mesophilic marine bacterium belonging to the family Flavobacteriaceae isolated from a young biofilm.
abstract: A number of marine bacteria isolated from young biofilms were characterized as belonging to the family Flavobacteriaceae. The taxonomic characterization of strain KOPRI 13649T, which was isolated from an acrylic surface at the seashore at Gangneung, Korea, is reported here. The nearly complete 16S rRNA gene sequence of strain KOPRI 13649T was determined and was found to have a high level of similarity with that of Psychroserpens burtonensis (95.0-95.6 %). In addition, phylogenetic analysis and comparison with closely related strains confirmed that the strain represented a novel member of the genus Psychroserpens. The major respiratory quinone of strain KOPRI 13649T was MK-6 and the DNA G+C content was 29.8 mol%. The dominant fatty acid methyl esters were i-15 : 0, a-15 : 0, i-16 : 0, i-15 : 1omega10, 16 : 1omega7 and 15 : 0. Growth was observed at 10-34 degrees C (optimum 30 degrees C), at pH 6-9 (optimum 6.5-8.0) and with 0.5-4 % NaCl (optimum 1 %). On the basis of the polyphasic taxonomic evidence presented, strain KOPRI 13649T (=KCCM 42261T=JCM 13413T) should be classified as the type strain of a novel species in the genus Psychroserpens, for which the name Psychroserpens mesophilus sp. nov. is proposed.
authors.affiliation: Marine Biotechnology Research Center, Korea Ocean Research and Development Institute (KORDI), Ansan PO Box 29, 425-600, Republic of Korea.
authors.forename: Kae Kyoung
authors.initials: KK
authors.lastname: Kwon
authors.affiliation: Marine Biotechnology Research Center, Korea Ocean Research and Development Institute (KORDI), Ansan PO Box 29, 425-600, Republic of Korea.
authors.forename: Soon Jae
authors.initials: SJ
authors.lastname: Lee
authors.affiliation: Department of Microbiology, Dankook University, Cheonan 330-714, Republic of Korea.|Marine Biotechnology Research Center, Korea Ocean Research and Development Institute (KORDI), Ansan PO Box 29, 425-600, Republic of Korea.
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Park
authors.affiliation: Department of Microbiology, Dankook University, Cheonan 330-714, Republic of Korea.
authors.forename: Tae-Young
authors.initials: TY
authors.lastname: Ahn
authors.affiliation: Polar BioCenter, Korea Polar Research Institute, Korea Ocean Research and Development Institute (KORDI), Ansan PO Box 29, 425-600, Republic of Korea.
authors.forename: Hong Kum
authors.initials: HK
authors.lastname: Lee
mesh_terms: D015373:Bacterial Typing Techniques; D001482:Base Composition; D018441:Biofilms; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis / Q000302:isolation & purification; D041965:Flavobacteriaceae / Q000737:chemistry / Q000145:classification* / Q000302:isolation & purification* / Q000502:physiology; D020459:Genes, rRNA; D006131:Growth Inhibitors / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D007723:Korea; D008969:Molecular Sequence Data; D010802:Phylogeny; D011809:Quinones / Q000032:analysis / Q000302:isolation & purification; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000494:pharmacology; D013696:Temperature; D014871:Water Microbiology
chemical_list: D004269:DNA, Bacterial; D005227:Fatty Acids; D006131:Growth Inhibitors; D011809:Quinones; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride