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Research Article Open access CC BY 3.0

Heavy Metal Pollution Mediated Oxidative Stress in Amaranthus hybridus Leaves

Linus Ahuwaraeze Nwaogu, Adaku Vivien Iwueke, Chidi Uzoma Igwe, Chinedu Emeka Ihejirika

International Journal of Biochemistry Research & Review · pp. 78–86 · Published 14 May 2012

10.9734/IJBCRR/2012/1205

Abstract

The effect of the same concentration of heavy metals lead (Pb), mercury (Hg) and cadmium (Cd) pollution on oxidative stress parameters in A. hybridus leaves after fifty days was investigated. A. hybridus leaves from soil sample without heavy metal pollution served as the control. Results indicated that there were significant (p< 0.05) difference in some of the oxidative stress parameters (glutathione (GSH), malondialdehyde (MDA), ascorbic acid (AA), protein thiol (PSH) and catalase (CAT) activity) mediated by heavy metal pollution from aqueous leaf extract of A. hybridus when compared to the control, indicating that heavy metal pollution at high concentration mediated oxidative stress in A. hybridus leaves. Heavy metals at higher concentration are toxic to plants which affect their normal metabolism and exhibit unhealthy characteristics growth.

Amaranthus hybridus pollution mediated heavy metal oxidative stress parameters

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Effect of Sublethal Concentration of Heavy Metal Contamination on Soil Physicochemical Properties, Catalase and Dehydrogenase Activities

Linus A. Nwaogu, Cosmas O. Ujowundu, Callistus I. Iheme, Tobias N. I. Ezejiofor, Donatus C. Belonwu · International Journal of Biochemistry Research & Review · 2014

Antioxidant responses in the leaves of mercury-treated Eichhornia crassipes (Mart.) Solms.

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