ANTIOXIDANT ENZYMES OF FLAXSEED (Linum usitatissimum L.) UNDER WATER DEFICIENCY AND SOME ORGANIC ACIDS SPRAYING
RAGHAD M. MIRRY *
College of Basic Education, Al-Mustansiriyah University, Baghdad, Iraq.
NABIL R. LAHMOD
Department of Crop Sciences, College of Agriculture, University of Wasit, Wasit, Iraq.
HAYYAWI W. A. AL-JUTHERY
Faculty of Agriculture, University of Al-Qadisiyah, Iraq
*Author to whom correspondence should be addressed.
Abstract
Antioxidant’s enzymes are important factors in plant adaptation to avoid stress conditions in addition to their medical influence in human health. Organic acids, such as salicylic and ascorbic application to plant shoots stimulate antioxidants enzymatic activities. This study was conducted with the aim of elucidating the effects of ascorbic and salicylic acids, alone or all together, in antioxidative enzymes production in flaxseed including catalase (CAT), peroxidase (POD) and superoxidismutase (SOD) grown under different levels of water stress. Results showed a clear efficacy of both acids in increasing the production of antioxidative enzymes in flax seeds in comparison to the control. Flaxseed oil content of antioxidative enzymes was improved by the application of these two acids. Such increases may enhance the crop tolerance to stress conditions and promote the medicinal benefit of the oil.
Keywords: Antioxidative, flaxseed, catalase, peroxidase, superoxidismutase