The comparison of leaf protein patterns between two tolerant and susceptible varieties of wheat under drought stress

摘要

Drought is one of the major factors limiting the yield of wheat (Triticum aestivum L.) 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.