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Alterations in Lipid Peroxidation and Some Antioxidant Enzymes in Germinating Beans(Vigna unguiculata) and Maize (Zea mays) Exposed to Nickel

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Author(s): G.E. Eriyamremu | O. Lolodi

Journal: International Journal of Botany
ISSN 1811-9700

Volume: 6;
Issue: 2;
Start page: 170;
Date: 2010;
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Keywords: antioxidant enzymes | lipid peroxidation | Zea mays | Vigna unguiculata | Nickel

ABSTRACT
The growth pattern, chlorophyll content, lipid peroxidation as well as the activities of superoxide dismutase (SOD), Glutathione Peroxidases (GP) and catalase (CAT) were studied in the radicles, roots and shoots of Vigna unguiculata (the common beans) and Zea mays (maize) grown in soils contaminated with two nickel concentrations {0.1% (65 μM) and 0.2% (130 μM)}. Two hundred and seventy of either bean or maize seeds were germinated in these contaminated soils and 10 of each germinated plants were harvested after either the 7th, 14th and 21st days. The study observed chlorosis and stunted growth in the nickel-treated plants. Nickel accumulated in the tissues in increasing order of the radicle, root and the shoot. Treatment of the plants with 0.1% or 0.2% nickel did significantly (p
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