Cytokinins in Norway Spruce Seedlings and Forest Soil Pollution

1996

S. 57-60

14 Lit. Ang.

Unselbständiges Werk

200101808

Cytokinins can correlate with pollution damage in spruce trees and also with different strains and species of their mycorrhizal symbionts. In our study, Norway spruce seedlings were grown in vitro on sterilized or nonsterile soil substrates from two differently polluted forest research plots. Cytokinins in needles were analysed by a combined HPLC-ELISA method. Differences were found predominantly in the isopentenyladenine-types of cytokinins. These were elevated in seedlings, grown on pooluted soils in comparison to those grown on soils from the unpolluted plot, as well as in seedlings grown on nonsterile substrates in comparison to those grown on sterile soil substrates. A possible explanation might be a change of metabolism in the roots due to pollution stress or/and a change in the mycorrhizosphere organisms. Norway spruce seedlings as tester organisms for soil pollution are discussed.