Effect of salicylic acid pretreatment on cadmium toxicity in wheat
2010
Moussa, H.R.,Atomic Energy Authority, Cairo (Egypt). Radioisotope Dept. | El-Gamal, S.M.,Monofya Univ. (Egypt). Agriculture Botany Dept.
Cadmium (100, 400 and 1,000 microM CdCl2) treatments resulted in the inhibition of root dry biomass, root elongation and increased Cd accumulation in wheat roots. Further, these treatments decreased relative water content, chlorophyll and abscicic acid contents, 14CO2-fixation, activities of phosphoenolpyruvate carboxylase and ribulose-1,5-bisphosphate carboxylase but increased malondialdehyde, hydrogen peroxide and free proline contents. Chloroplast and root ultrastructure was also changed. Pretreatment of seeds with SA (500 microM) for 20 h resulted in amelioration of these effects.
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