EFFECT OF HEAVY METALS COPPER AND CADMIUM EXPOSURE ON THE ANTIOXIDANT PROPERTIES OF THE PLANT CLEOME GYNANDRA
|T.E. HARIBABU1 AND P.N.SUDHA2*
|Corresponding Author: P.N.SUDHA, Tel: 91-9842910157, Fax: 0416-2260550E-mail: [email protected]|
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Toxic metal contamination of soil, aqueous waste streams and groundwater causes major environmental and human health problems. The most commonly used methods for dealing with heavy metal pollution are still extremely costly. Phytoremediation is the use of plants to extract, sequester and/or detoxify pollutants and is a new and powerful technique for environmental clean-up. Plants are ideal agents for soil and water remediation because of their unique genetic, biochemical and physiological properties. During the exposure of plants to contaminated soils, the antioxidant defence system helps the plant to protect itself from the damage. Antioxidants are substances that protect itself from damage caused by oxidation. In the present work the plant Cleome Gynandra was exposed to the sublethal and half of sublethal concentration of cadmium and copper metal contaminated soils and the antioxidant factors were investigated and the results are discussed.