Namit Kumar Upadhyay, Sushma*, J. Dawson and Aparna Jha
Jacob School of Biotechnology & Bioengineering, SHIATS, (Formerly AAIDU), Allahabad, U.P
Received 20th July, 2013 ; Revised 26th August, 2013
Abstract : Water loss from plant tissues under drought conditions results in growth inhibition and in a number of other metabolic and physiological changes. These include abscisic acid accumulation, stomatal closure, changes in leaf water potential , the decreased photosynthesis and solute accumulation. Rice (Oryza sativa L.) as a paddy field crop is particularly susceptible to water stress. It is estimated that 50% of the world rice production is affected more or less by drought. To improve crop productivity, it is necessary to understand the mechanism of plant responses to drought conditions with the ultimate goal of improving crop performance in the vast areas of the world where rainfall is limiting or unreliable. We have constructed proteome maps of drought-sensitive IR 20 and drought tolerant Birsa Dhan 101 rice types corresponding to several time points during their response to drought stress. Several up- and down-regulated proteins have been identified by 1D protein gel electrophoresis followed by silver staining.