Effect of osmotic stress on wheat membrane injury under different CO2 concentrations

Abstract

Abstract: This paper studied the variation of active oxygen content and membrane permeability in leaves of spring wheat seedling exposed to osmotic stress under normal 350μl·L^-1 and doubled CO₂ concentration 700μl·L^-1.The results indicate that the increasing rate of O₂^{·^-} and H₂O₂,and the membrane permeability in wheat leaves exposed to osmotic stress in normal CO₂ concentration were higher than those in doubled CO₂.Accordingly,it is suggested that doubled CO₂ can reduce the membrane oxidative injury caused by osmotic stress,and increase plant drought resistance.

Key words: Wheat, CO₂ concentration, Osmotic stress, Active oxygen, Membrane injury

XU Yangcang, WANG Jin, LIN Jiusheng, WANG Genxuan. Effect of osmotic stress on wheat membrane injury under different CO₂ concentrations[J]. Chinese Journal of Applied Ecology, 2000, (6): 878-880.

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Effect of osmotic stress on wheat membrane injury under different CO₂ concentrations

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