Ameliorative role of Ã-estradiol against lead-induced oxidative stressand genotoxic damage in germinating wheat seedlings

摘要: In the present study, to determine effects of b-estradiol on ability plants tolerate lead toxicity, (10 mM) and (1.75 mM), singly or in combination, were exogenously applied wheat seeds. Although resulted a marked increase activities antioxidant enzymes, including superoxide dismutase, guaiacol peroxidase, ascorbate glutathione reductase (but not catalase), as well an level compounds such ascorbic acid glutathione, this was insufficient ameliorate lead-induced oxidative injury anion, hydrogen peroxide, malondialdehyde levels. However, able reduce damage improved system. Similarly, reduced a-amylase activity. The toxicity genetic material also determined using randomly amplified polymorphic DNA technique. While led seedlings, significantly mitigated damage. Our element analysis results show that did prevent uptake by roots, even it stimulate accumulation there. Taken together, our data demonstrate for first time b-estradiol-induced tolerance is associated with many biochemical molecular mechanisms, system, detoxification reactive oxygen species, modulation lead, protection material.