Effects of Calcium on Absorption and Distribution of Ions and H+-ATPase Activity in Barley and Wheat Under Salt Stress

Abstract

Abstract: Calcium decreased Na+ absorption and transportation to the shoots,increased K+ and Ca2+ absorption and transportation ,decreased the leakage of electrolyties,and increased the accumulation of dry matter in barley and wheat seedlings under NaC1 stress. Calcium ion promoted the H+-ATPase activities in plasma membrane and tonoplast vesicles isolated from the young roots of the two plants, and increased respiration of the roots. This is in consistent with the results that calcium regulates ion absorption and distribution via its enhancement of H+-ATPase activities in plasma membrane and tonoplast.

Key words: Barley, Wheat, Salt stress, Calcium, Ion absorption and distribution, H+-ATPase

Zhang Wen-hua and Liu You-liang. Effects of Calcium on Absorption and Distribution of Ions and H+-ATPase Activity in Barley and Wheat Under Salt Stress[J]. J Integr Plant Biol., 1993, 35(6): -.

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Effects of Calcium on Absorption and Distribution of Ions and H+-ATPase Activity in Barley and Wheat Under Salt Stress

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