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Int J Syst Evol Microbiol 53 (2003), 1291-1296; DOI  10.1099/ijs.0.02436-0
© 2003 International Union of Microbiological Societies

Pedobacter cryoconitis sp. nov., a facultative psychrophile from alpine glacier cryoconite

Rosa Margesin1, Cathrin Spröer2, Peter Schumann2 and Franz Schinner1

1 Institut für Mikrobiologie, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria
2 Deutsche Sammlung für Mikroorganismen und Zellkulturen, Mascheroder Weg 1b, D-38124 Braunschweig, Germany

Correspondence
Rosa Margesin
rosa.margesin{at}uibk.ac.at

On the basis of phenotypic and genotypic characteristics, a novel species belonging to the genus Pedobacter is described. A facultatively psychrophilic, Gram-negative, aerobic, rod-shaped strain, A37T, was isolated from alpine glacier cryoconite. The non-flagellated and non-spore-forming isolate grew over a temperature range of 1–25 °C, showed activities of oxidase, catalase, DNase, protease (gelatin, casein), amylase, {beta}-glucosidase, {beta}-galactosidase and {beta}-lactamase and degraded oil hydrocarbons. A distinct optimum temperature of 15 °C was observed for both protease production and oil hydrocarbon biodegradation. Analysis of 16S rDNA revealed that strain A37T represents a distinct taxon within Pedobacter. DNA from strain A37T showed only 19·7 % genetic relatedness to the DNA of Pedobacter piscium. The DNA G+C content was 43·4 mol%. Dominant fatty acids (51 %) were iso-15 : 0 2-OH and 16 : 1{omega}7c. The strain is assigned to a novel Pedobacter species, for which the name Pedobacter cryoconitis sp. nov. is proposed, with A37T (=DSM 14825T=LMG 21415T) as the type strain.

Published online ahead of print on 21 February 2003 as DOI 10.1099/ijs.0.02436-0.

The GenBank/EMBL/DDBJ accession number for the 16S rDNA sequence of strain A37T is AJ438170.




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