THE COMPARISON OF LEAF PROTEIN PATTERNS BETWEEN TWO TOLERANT AND SUSCEPTIBLE VARIETIES OF WHEAT UNDER DROUGHT STRESSAli Mehras Mehrabi, , Ali Mostafaie , Eslam Majidi Harvan , Reza Haghparast and Danial KahriziAbstract Drought is one of the major factors limiting the yield of wheat (Triticum aestivumL.) particularly during heading and grain filling. A comparative proteomic analysis conducted utilizing protein pattern of flag leaves of two contrasting wheat cultivars, Azar 2 (Drought tolerant variety) and Marvdasht (Drought susceptible variety) subjected to a range of drought stress (100%, 80% and 60% Field capacity) for five days at heading stage. 289 differentially expressed protein spots (DEPs) were located,42 spots only showed reproducible significant changes in Azar 2 and 13 of them had a certain procedure in range of drought stress. Twelve spots were up-regulated and one spot was down regulated. Eleven spots only showed significant changes in Marvdasht and six of them had a certain procedure in range of drought stress and two spots were up-regulated and 4 were down-regulated.
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