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Spongiispira norvegica gen. nov., sp. nov., a marine bacterium isolated from the boreal sponge Isops phlegraei.
Citation key Kaesler2008
Author Kaesler, I. and Graeber, I. and Borchert, M. S. and Pape, T. and Dieckmann, R. and von Döhren, H. and Nielsen, P. and Lurz, R. and Michaelis, W. and Szewzyk, U.
Pages 1815–1820
Year 2008
DOI 10.1099/ijs.0.65439-0
Journal International Journal of Systematic and Evolutionary Microbiology
Volume 58
Number Pt 8
Month Aug
Institution Berlin University of Technology, Environmental Microbiology Group, Franklinstrasse 29, Sekr. FR 1-2, Berlin, Germany. ineskaesler@web.de
Abstract The bacterial strain Gp_4_7.1T, isolated from the marine sponge Isops phlegraei collected at the Sula Ridge off the Norwegian coast, was characterized. The isolate was a motile spirillum that was monopolarly and monotrichously flagellated. It was aerobic, Gram-negative, oxidase-positive and catalase-negative. Optimal growth occurred between 20 and 30 degrees C, at pH 7-8 and with a salt concentration of 2-3 \% (w/v). The isolate showed a relatively restricted nutritional profile. Substrate utilization tests were only positive for arabinose. Enzyme tests were positive for esterase lipase C8, lipase C14, leucine arylamidase and naphthol-AS-BI-phosphohydrolase. The strain was not able to reduce nitrate. The major cellular fatty acids were C16:1 omega7 and C16:0. The DNA G+C content was 62.6 mol\%. Phylogenetic analysis based on 16S rRNA gene sequence comparison classified the strain as a member of the order Oceanospirillales in the class Gammaproteobacteria. Strain Gp_4_7.1T formed a distinct phyletic line with less than 94 \% 16S rRNA gene sequence similarity to its closest relatives with validly published names. Based on the determined data, it is proposed that the strain represents a novel species in a new genus, Spongiispira norvegica gen. nov., sp. nov.; the type strain of Spongiispira norvegica is Gp_4_7.1T (=DSM 17749T =NCIMB 14401T).
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