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Psychromonas arctica sp. nov., a novel psychrotolerant, biofilm-forming bacterium isolated from Spitzbergen

Institute of Technical Microbiology, Technical University Hamburg-Harburg, Kasernenstr. 12, 21073 Hamburg, Germany

Correspondence
Garabed Antranikian
antranikian{at}tuhh.de

Using starch as a carbon source at a cultivation temperature of 4 °C, a number of Gram-negative, aerobic strains was isolated from sea-ice and sea-water samples collected at Spitzbergen in the Arctic. Analysis of the genetic diversity of the novel isolates by random amplification of polymorphic DNA (RAPD) and ERIC fingerprinting revealed a homogenic group of biofilm-forming bacteria that contained small extrachromosomal elements. As a representative of the group, strain Pull 5.3^T, isolated from a sea-water sample, was used for detailed characterization. The results of phylogenetic analysis indicated that the newly isolated strain is a member of the -subclass of the Proteobacteria and belongs to the genus Psychromonas. On the basis of DNA–DNA hybridization experiments, chemotaxonomic studies and phenotypic characterization, strain Pull 5.3^T (=CECT 5674^T =DSM 14288^T) clearly represents a novel species, for which the name Psychromonas arctica sp. nov. is proposed.

Published online ahead of print on 19 September 2002 as DOI 10.1099/ijs.0.02182-0.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of P. arctica Pull 5.3^T is AF374385.

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