Latifeh Poorakbar; sonia Maghsoumi Holasoo
Abstract
Salinity is one of the most important environmental factors which reduce the plants growth and their fertility around the world. In this study maize (Zea mays L.) plants grown in hydroponic culture were treated with NaCl(0, 100 and 150mM).After 1 month of treatment, growth parameters and some biochemical ...
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Salinity is one of the most important environmental factors which reduce the plants growth and their fertility around the world. In this study maize (Zea mays L.) plants grown in hydroponic culture were treated with NaCl(0, 100 and 150mM).After 1 month of treatment, growth parameters and some biochemical changes were studied in roots and shoots of plants. The results showed that with increasing NaCl concentration, leaf area and root and shoot length were decreased, while total soluble sugar, level of H2O2, malondealdyde as indicator lipid of peroxidation were increased. The activities of catalase (CAT), ascorbate peroxidase (APX) and guaiacol peroxidase increased in plants supplied with both concentration of NaCl. Therefore, it can be concluded that supply of NaCl induced oxidative stress by increasing production of ROS despite increased antioxidant protection in maize plants.
