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  • Title: Pedobacter cryoconitis sp. nov., a facultative psychrophile from alpine glacier cryoconite.
    Author: Margesin R, Spröer C, Schumann P, Schinner F.
    Journal: Int J Syst Evol Microbiol; 2003 Sep; 53(Pt 5):1291-1296. PubMed ID: 13130009.
    Abstract:
    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, A37(T), was isolated from alpine glacier cryoconite. The non-flagellated and non-spore-forming isolate grew over a temperature range of 1-25 degrees 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 degrees C was observed for both protease production and oil hydrocarbon biodegradation. Analysis of 16S rDNA revealed that strain A37(T) represents a distinct taxon within PEDOBACTER: DNA from strain A37(T) 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 : 1omega7c. The strain is assigned to a novel Pedobacter species, for which the name Pedobacter cryoconitis sp. nov. is proposed, with A37(T) (=DSM 14825(T)=LMG 21415(T)) as the type strain.
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