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Description of Gramella forsetii sp.nov., a marine Flavobacteriaceae isolated from North Sea water, and emended description of Gramella gaetbulicola Cho et al. 2011

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Becher,  Mareike
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Schüler,  Margarete
Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Amann,  Rudolf I.
Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Harder,  Jens
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Hahnke,  Richard L.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Panschin, I., Becher, M., Verbarg, S., Spröer, C., Rohde, M., Schüler, M., et al. (2017). Description of Gramella forsetii sp.nov., a marine Flavobacteriaceae isolated from North Sea water, and emended description of Gramella gaetbulicola Cho et al. 2011. International Journal of Systematic and Evolutionary Microbiology, 67, 697-703.


Cite as: http://hdl.handle.net/21.11116/0000-0002-F7B7-9
Abstract
Strain KT0803T was isolated from coastal eutrophic surface waters of Helgoland Roads near the island of Helgoland, North Sea, Germany. The taxonomic position of the strain, previously known as ‘ Gramella forsetii ’ KT0803, was investigated by using a polyphasic approach. The strain was Gram-stain-negative, chemo-organotrophic, heterotrophic, strictly aerobic, oxidase- and catalase-positive, rod-shaped, motile by gliding and had orange–yellow carotenoid pigments, but was negative for flexirubin-type pigments. It grew optimally at 22–25 °C, at pH 7.5 and at a salinity between 2–3 %. Strain KT0803T hydrolysed the polysaccharides laminarin, alginate, pachyman and starch. The respiratory quinone was MK-6. Polar lipids comprised phosphatidylethanolamine, six unidentified lipids and two unidentified aminolipids. The predominant fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, C16 : 1ω7c and iso-C17 : 1ω7c, with smaller amounts of iso-C15 : 0 2-OH, C15 : 0, anteiso-C15 : 0 and C17 : 1ω6c. The G+C content of the genomic DNA was 36.6 mol%. The 16S rRNA gene sequence identities were 98.6 % with Gramella echinicola DSM 19838T, 98.3 % with Gramella gaetbulicola DSM 23082T, 98.1 % with Gramella aestuariivivens BG-MY13T and Gramella aquimixticola HJM-19T, 98.0 % with Gramella lutea YJ019T, 97.9 % with Gramella portivictoriae DSM 23547T and 96.9 % with Gramella marina KMM 6048T. The DNA–DNA relatedness values were <35 % between strain KT0803T and type strains with >98.2 % 16S rRNA gene sequence identity. Based on the chemotaxonomic, phenotypic and genomic characteristics, strain KT0803T has been assigned to the genus Gramella , as Gramella forsetii sp. nov. The type strain is KT0803T (=DSM 17595T=CGMCC 1.15422T). An emended description of Gramella gaetbulicola Cho et al. 2011 is also proposed.