XVI International Botanical Congess

Glutathione fulfils a very important function in the plants in supporting thiol-disulfide status in cells, in protecting of cell's components against active oxiden combinations. It takes part in metabolism of xenobiotics. Enzymes of metabolism of glutathione play an important part in the formation of the stability of the cell to different chemical and physical affects. Glutathione-S-transferase (GST) take part in detoxicating of xenobiotics and fulfils the important functions in metabolism in the cell. Glutathione reductase (GR) provides the restoration of glutathione supporting its quantity on the necessary physiological level. The definition of the activity of GST in roots and leaves Pisum sativum L. and Zea mays L. showed that in roots the activity of enzymes is three times as high than in laves. In leaves and roots of monocotyledonous (Z. mays) the activity of GR was higher than in dicotyledonous (P. sativum). In roots Z. mays the activity of GR was 5.4 times as high, than in leaves, and in P. sativum in 1.5 times.