4.3 Article

Effect of glycinebetaine on function of thylakoid membranes in wheat flag leaves under drought stress

Journal

BIOLOGIA PLANTARUM
Volume 51, Issue 3, Pages 584-588

Publisher

ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1007/s10535-007-0128-3

Keywords

Ca2+-ATPase; chlorophyll content; gas exchange; Hill reaction activity; lipids; Triticum aestivum

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Two wheat cultivars, HF9703 (drought tolerant) and SN215953 (drought sensitive) were used to examine the effects of glycinebetaine (GB, 100 mM) on lipid composition and function of thylakoid membranes under drought stress. GB application mitigated negative effect of drought on Ca2+-ATPase and Hill reaction activities, chlorophyll content, gas exchange and photosynthesis. These positive effects of GB application maybe, in part, correlated with improving the lipid composition of the thylakoid membranes.

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