acetylcoa carboxylase and antioxidant enzymes activity of sunflower under influence of supergallant herbicide by magnetic water

Approaches for reducing the destructive effects of herbicides and increasing water use efficiency have attracted the interest of researchers over the last few decades. this study aims to investigate the protective effects of irrigation with magnetic water (mwt) on acetyl coenzyme a carboxylase (accase) and antioxidant enzymes activity of sunflower (helianthus annuus l. cv. lakomka) against undesirable effects of super gallant herbicide. it was conducted in a completely randomized design with four levels of super gallant herbicide (0, 25, 50, and 75 ppm) and three replications. small necrotic spots were observed on some mwt and normal water treated leaves due to the herbicide effect. although proline content increased in response to herbicide toxicity, mwt plants had significantly higher proline level than corresponding control ones. on the other hand, malondialdehyde content, as a marker of membrane damage, showed dramatic increase due to herbicide treatment. also, ascorbate peroxidase and catalase activities rose by super gallant despite the decline in guaiacol peroxidase activity in herbicide concentration dependent manner. herbicide reduced activity of accase in both roots and shoots significantly, but mwt could ameliorate this effect very well. it seems that mwt may be considered as an appropriate method to cope the negative effects of herbicide super gallant.