title: Rheinheimera perlucida sp. nov., a marine bacterium of the Gammaproteobacteria isolated from surface water of the central Baltic Sea.
abstract: A bacterial isolate from the Baltic Sea, BA131(T), was characterized for its physiological and biochemical features, fatty acid profile, G+C content and phylogenetic position based on comparative 16S rRNA gene sequence analysis. The strain was isolated from surface water of the central Baltic Sea during the decay of a plankton bloom. Phylogenetic analyses of the 16S rRNA gene sequence revealed a clear affiliation with the Gammaproteobacteria, and showed closest phylogenetic relationships with the genera Alishewanella and Rheinheimera. The G+C content of the DNA of strain BA131(T) was 48.9 mol%. Cells were non-pigmented, Gram-negative, rod-shaped, motile by means of a single polar flagellum and catalase- and oxidase-positive. Growth was observed at salinities from 0 to 8 %, with an optimum at 1-3 %. Temperature for growth ranged from 4 to 37 degrees C, with an optimum around 25 degrees C. The fatty acids were dominated by 16 : 0 (17-18 %) and by unsaturated compounds (>61 % of the total): 16 : 1omega7c (24-33 %), 17 : 1omega8c (14-18 %) and 18 : 1omega7c (9-12 %). Based on the data presented, BA131(T) is proposed as the type strain of a novel species of the genus Rheinheimera, Rheinheimera perlucida sp. nov. The type strain is BA131(T) (=LMG 23581(T)=CIP 109200(T)).
authors.affiliation: GBF - German Research Centre for Biotechnology, Department of Environmental Microbiology, Mascheroder Weg 1, D-38124 Braunschweig, Germany.
authors.forename: Ingrid
authors.initials: I
authors.lastname: Brettar
authors.affiliation: UMR 6543 CNRS and Université de Nice Sophia Antipolis, Centre de Biochimie, Parc Valrose, F-06108 Nice cedex 2, France.
authors.forename: Richard
authors.initials: R
authors.lastname: Christen
authors.affiliation: GBF - German Research Centre for Biotechnology, Department of Environmental Microbiology, Mascheroder Weg 1, D-38124 Braunschweig, Germany.
authors.forename: Manfred G
authors.initials: MG
authors.lastname: Höfle
mesh_terms: D001454:Baltic States; D001482:Base Composition / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis*; D020563:Gammaproteobacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D008969:Molecular Sequence Data; D012336:RNA, Ribosomal, 16S / Q000032:analysis* / Q000235:genetics; D012623:Seawater / Q000382:microbiology*
chemical_list: D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S