[Several properties of beta-galactosidase from Artemisia annua L]

beta-Galactosidase was isolated from different organs of the wormwood (Artemisia annua L.). The enzyme activity was found to change during the growth and development of the plant. The maximal activity was revealed in reproductive organs at flowering and fruiting stages. Using ion-exchange chromatography, isoelectric focusing and disc electrophoresis in PAAG, two molecular isoforms of beta-galactosidase were detected. Some physicochemical properties of the enzyme were investigated.