Dynamics of peroxidase isoenzymes and pigments in needles of Picea dieter. species introduced in Karelia

Investigation was carried out in the Botanical gardens of Petrozavodsk Universiti (the middle taiga subzone). Annual dynamics of peroxidase isoenzymes and pigments in needles of first year of aboriginal and 6 introduced species of genus Picea Dieter. were studied. From 15 to 20 different peroxidase isoenzymes were found in needles of tree species. It was determined that peroxidase isoenzymes have high annual variation spectrum. The content of chlorophyll and carotenoids in needles connects with significant seasonal variations. It is determined mainly by biological features of species.