Evaluation of responsive common proteins in tolerant and sensitive spring wheat cultivars under drought stress

In this research, proteome analysis was done by two-dimensional electrophoresis and stainig by Commassie brilliant blue method for two cultivars of Kavir as tolerant and Bahar as susceptible was done. After of be quantitative spots with Same spot progenesis software, 10 common protein spots with significant difference between control and drought stress conditions in the Kavir and Bahar was diagnosed. Using MALDI-TOF/TOF mass spectrometry of common proteins, nine common protein spots were identified and the type of activity and mode of action of these proteins in the cells was determined. Based on the results, proteins involved in light reactions of photosynthesis (three protein spots Chlorophyll ab binding protein 8, chloroplastic, Cytochrome b6-f complex iron-sulfur subunit, chloroplasti and Peptidyl-prolyl cis-trans isomerase CYP38, chloroplastic) and Calvin cycle (two protein spots include Fructose-1,6-bisphosphatase, chloroplastic and ribulose-bisphosphate carboxylase small chain precursor) in both cultivars were the greatest functional groups and in other words, the most important common proteins for maintain of efficiency under drought stress were. Since these proteins in both tolerant and susceptible cultivars showed changes in expression, seems to be the most sensitive proteins in response to drought stress in wheat. In other words, these results show that it is important to maintain the efficiency of photosynthesis under drought stress.