Changes in cell membrane permeability and lipid content of wheat root cortex cells induced by NaCl |
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| Authors: | M M F Mansour |
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| Institution: | 1. Department of Botany, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
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| Abstract: | Wheat seedlings were grown hydroponically in absence and presence of 100 mM NaCl for 7 d. Cell membrane permeability to nonelectrolytes
and water was determined by the plasmometric method for individual intact cells. NaCl increased membrane permeability to urea,
methylurea and ethylurea and decreased permeability to water. Membrane lipid partiality was decreased by NaCl. The effects
of NaCl on cell permeability parallel changes in the lipid composition of the plasma membranes induced by NaCl stress suggesting
that nonelectrolyte permeability is a useful tool to probe alterations in the lipid matrix of the membrane. |
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| Keywords: | ethylurea methylurea Triticum aestivum urea |
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