What is the crucial difference between the metabolic consequences of cadmium and zinc treatment of the plants?

Attila Hegedus, Borbála Harrach, Gyöngyi Bárdos, Sára Erdei

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Heavy metal stress induced alterations in the activities of several representatives of the enzymatic antioxidant defense system such as guaiacol peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) were comparatively studied in barley seedlings and alfalfa aldose reductase overexpressing transgenic tobacco treated by Zn and/or Cd. Although roots were the main sites of metal accumulation, metals induced oxidative damage mainly in the leaves. Our experiments clearly show that the investigated heavy metals have quite different effects on plant metabolism and induce the protective enzymatic system in different ways. Transgenic tobacco plants showed increased tolerance against cadmium induced stress.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalActa Biologica Szegediensis
Volume49
Issue number1-2
Publication statusPublished - Dec 1 2005

Keywords

  • Aldose reductase
  • Heavy metals
  • Oxidative stress

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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