Content of the malonyl dyaldehyde and activity of the antioxidation enzymes in pea sprouts under the effect of cadmium ions

摘要

The effect of different concentrations of cadmium ions (10~-7 -- 10~-4 M) on the content of malonyl dyaldehyde and activity of superoxide dismutase and catalase has been investigated for pea sprouts at the initial stages of their development. It has been found that activity of catalase in shoots and roots of pea sprouts, increased after two days-long exposition with cadmium ions in all range of concentration investigated. If metal ions were in the roots only. An activation of peroxide oxidation of lipids by cadmium ions has been found. An increase of malonyl dyaldehyde content in the sprouts and decrease of anti-oxidation enzymes activity activity after long exposition (8 days) with cadmium ions in concentration of 10~-6 M and above, confirm this supposition.