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Antioxidative enzymes in the response of buckwheat (Fagopyrum esculentum Moench) to complete submergence

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Author(s): Stanisavljević N.S. | Nikolić Dragana B. | Jovanović Ž.S. | Samardžić Jelena T. | Radović Svetlana R. | Maksimović Vesna R.

Journal: Archives of Biological Sciences
ISSN 0354-4664

Volume: 63;
Issue: 2;
Start page: 399;
Date: 2011;
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Keywords: Complete submergence | lipid peroxidation | antioxidative enzymes | buckwheat

ABSTRACT
Oxidative stress and antioxidative defense system activity were studied in buckwheat leaves after complete submergence and re-aeration. The levels of H2O2 and lipid peroxidation were found to be significantly higher in stressed than in untreated buckwheat leaves. Enzymes catalyzing the degradation of H2O2 and peroxides were shown to participate actively, whereas superoxide dismutase did not take part in the buckwheat leaf response to flooding stress. The most prominent increase in antioxidative enzyme activities was noticed upon return to air, when the strongest oxidative stress occurred and the need for antioxidative defense was the greatest.
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