ORIGINAL RESEARCH
Antioxidative Defense System in Pisum sativum
Roots Exposed to Heavy Metals (Pb, Cu, Cd, Zn)
Arleta Malecka1, Aneta Piechalak1, Anna Mensinger1, Anetta Hanć2,
Danuta Barałkiewicz2, Barbara Tomaszewska1
1Department of Biochemistry, Institute of Molecular Biology and Biotechnology,
Adam Mickiewicz University, Collegium Biologicum,
Umultowska 89, 61-614 Poznań, Poland.
2Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry,
Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
Adam Mickiewicz University, Collegium Biologicum,
Umultowska 89, 61-614 Poznań, Poland.
2Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry,
Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
Pol. J. Environ. Stud. 2012;21(6):1721-1730
KEYWORDS
ABSTRACT
Heavy metals (Cd, Pb, Cu, Zn) absorbed by roots brought about oxidative stress conditions through ROS
production (O2¯˙, H2O2) for pea plants cultivated hydroponically for 96 h on a Hoagland medium with the addition
of 50 μM: CdCl2, Pb(NO3)2, CuSO4, and ZnSO4. We shows, using laser ablation ICP MS, that Cd, Cu, Pb,
and Zn elements are located along a cross-section through the roots of pea plants. We observed increasing activities
of antioxidative enzymes (SOD, CAT, GR) in oxidative stress conditions. We have shown changes in
redox state (GSH/GSSG) in pea root grown with Pb, Cu, Cd, and Zn.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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