Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/23503
Title: Effect of zinc on antioxidant response in maize (Zea mays L.) leaves
Authors: Pandey, N
Singh, A K
Pathak, G C
Sharma, C P
Issue Date: Aug-2002
Publisher: NISCAIR-CSIR, India
Abstract: Maize (Zea mays L. cv kanaujia) plants grown with Zn [10 (control), 0.1 (low) and 20 µM (high)], were investigated for concentration of antioxidants and activities of antioxidative enzymes in leaves. Young leaves of low Zn plants developed whitish-necrotic spots. Leaves of both low and high Zn plants showed decrease in chlorophyll concentration and accumulation of lipid peroxides, ascorbate and dehydroascorbate, associated with a decrease in the activity of ascorbate peroxidase and superoxide dismutase. Low and high Zn, however, showed diverse effect on glutathione reductase. While low Zn increased the activity of glutathione reductase, high Zn decreased its activity. Zinc effect on antioxidative constituents suggested Zn involvement in sustaining the anti oxidative defense system in maize leaves.
Page(s): 954-956
URI: http://hdl.handle.net/123456789/23503
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.40(08) [August 2002]

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