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Cytokinins in Norway spruce seedlings as tester organisms of forest soil pollution
1995
Kraigher, H. (Forestry Inst. of Slovenia, Ljubljana (Slovenia)) | Hanke, D.E. (Cambridge Univ. (United Kingdom). Plant Sciences Dept.)
Cytokinins were analysed by a combined HPLC-ELISA method in needles of Norway spruce seedlings. The seedlings were grown in vitro on sterile or nonsterile soil substrates from two differently polluted forest research plots. Difference were predominantly found in the isopentenyladenine-type of cytokinins. These were elevated in seedlings, grown on polluted soils in comparison to those, grown on soils from the unpolluted plot. A possible explanation might be in the change of the metabolism in the roots due to pollution stress (when grown on sterilized substrates) or in change of the mycorrhizosphere organisms (when grown on nonsterile soil substrates). The model system using Norway spruce seedlings as tester organisms for soil pollution is discussed.
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