THE VARIABILITY OF THE HYPERICIN CONTENT IN THE REGENERANTS OF HYPERICUM-PERFORATUM

The hypericin content of in vitro regenerated plants of Hypericum perf oratum L. was determined by spectrophotometry. A significant variabili ty of some of the morphological characters, of the biomass production and the hypericin formation was found within the somaclones of the sam e genetic origin and among the regenerants of different genotypes. The concentration of BAP which promoted the shoot differentiation did not affect the hypericin content and the gland density. New information o n the ultrastructure of hypericin-containing multicellular glands is p resented here.