Effects of abiotic stresses on protein content and profile on two wheat cultivars in seedling stage

yield of wheat (Triticum aestivum L.), as the most important crop always has been affected by environmental stresses and nowadays achiving favorabale and stable yield is desired for researchers. Protein variation is the basic part of plant response to environmental stresses and also adaptation to environmental conditions,so the present study was carried out in order to analyze the changes in content and profile of soluble protein in two organs (root and shoot) of seedlings in two sensitive (Ghods) and resistant (Alvand) cultivars. Results showed that effect of cultivars, stresses, organs and also interactions of stress×cultivare and stress×organe were significantly effective on protein content. In root apart from salinity levels, other stresses showed significant difference toward control treatment. Also in shoot apart from the first level of salinity and drought, the other treatments increased significantly. IN Alvand cultivar except of low temperature and the second level of salinity, and also in Ghods cultivar apart from the second level of drought, other stresses levels did not show significant difference toward control treatment. So soluble protein content wich is affected by different stresses, showd varied process of changes, depend on kind of cultivare and involed organ. Polymorphism in protein electrophoretic paterns on SDS-PAGE gels was observed in organs of cultivars under diffrent stresses.