List of Articles سیستمهای آنتیاکسیدانی Open Access Article Abstract Page Full-Text 1 - Effect of Different Level of Auxin, Cytokinin and Gibberellin on Growth, Phenolic Compounds and Activity of Antioxidant Enzymes of Opuntia cylindrica Tahereh A. Aghajanzadeh Seyedeh Zohreh Miri Aryan Sateei Mehdi Ebadi