Effect of high temperature treatment of Vicia faba roots on the oxidative stress enzymes in leaves.

  • M Filek Franciszek Górski Department of Plant Physiology, Polish Academy of Sciences, Cracow, Poland.;
  • R Baczek
  • E Niewiadomska
  • M Pilipowicz
  • J Kościelniak

Abstract

The following types of superoxide dismutase (SOD) have been found in the leaves of Vicia faba: one isoenzyme of Mn-SOD and four isoenzymes of Cu/Zn-SOD. The treatments of roots with boiling water caused an increase of SOD activity in the leaves. The highest increase was measured after 5 s of the treatment. It was accompanied by a significant increase in catalase activity. Analysis of cell fractions' revealed an increase of SOD activity in the plastids and mitochondria isolated from the leaves of those plants whose roots were heat-treated. However, there was no distinct change of SOD activity in the cytosolic fraction. The possibility of an electric wave intervention inducing oxidative stress in the leaves is discussed.
Published
1997-06-30
Section
Articles