List of Articles آنزیم‌های انتی اکسیدان

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  1 - Effect of pix (mepiquat chloride) on growth, amount of carbohydrate and antioxidant enzyme activity in cotton seedling
  مریم Niakan, عبدالرشید Habibi مه لقا Ghorbanli,
  Cotton has non limitation growth and is sensitive to environmental changes and usually grows more than natural dimension. These non limitation growths not only cause serotine of product and quaility deacresing but also increase pests, disease and harvesing expenses in c More

  Cotton has non limitation growth and is sensitive to environmental changes and usually grows more than natural dimension. These non limitation growths not only cause serotine of product and quaility deacresing but also increase pests, disease and harvesing expenses in cotton. Pix is one plant growth regulator that cause decrease vegetative growth in cotton.It acts as antigibberellin and inhibits synthesis this hormone. There are some researches about effect of pix on growth parameters of cotton but a little information's are about pix effects on biochemical reactions and antioxidant systems. In this research effect of different concentrations of pix includes 0 (control)10, 20, 30 and 40ppm on germination percentage, radicle length and Catalase peroxidase and polyphenol oxidase in cotton seedling was evaluated. Our results showed that percentage of germination increased with increasing pix concentration. Lenght of radicle increased until 20 ppm and decreased in concentration 30 and 40 ppm of pix. Also with increasing of pix amount of soluble sugar increasd and starch content decreased Catalase activity decreased while polyphenol oxidase activity increased. Activity peroxidase also increased until 30ppm concentration. Manuscript profile
• Open Access Article
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  2 - The effect of different copper sulfate (CuSO4) concentrations on some physiological parameters of (Melissa officinalis L.)
  salehe naderi حمیده خواجه حسن احمدی
  Melissa (Melissa offcinalis L.), a member of a Lamiaceae family, is a medical plant. The main most important pharmacological properties can be soothin, strengthening nerve, carminative and memory booster. The presence of heavy metals is one of important environmental st More

  Melissa (Melissa offcinalis L.), a member of a Lamiaceae family, is a medical plant. The main most important pharmacological properties can be soothin, strengthening nerve, carminative and memory booster. The presence of heavy metals is one of important environmental stresses that can reduce growth and production of types of reactive oxygen. In the present study, the effect of copper sulfate (CuSO4) on some physiological parameters of melissa was examined. So melissa was treated with different concentrations of copper sulfate (0, 10, 20, 30 mM) in 6-leaf stage. Then melissa was harvested after two weeks in order to examine malondialdehyde, gayacol peroxidase, peroxidase and poly phenol oxidase antioxidative enzymes activity. The results showed that when copper sulfate increased in comparison with control, the activity of lipid peroxidation (malondialdehyde) and antioxidant enzymes increased significantly. Totally, all used copper sulfate concentrations caused toxicity in melissa and it showed that the plant is sensitive to huge amount of copper. This study investigated the effect of copper sulfate on malondialdehyde, gayacol peroxidase, peroxidase and poly phenol oxidase antioxidative enzymes activity in melissa. Manuscript profile