Role of salicylic acid in regulation of cadmium toxicity in wheat ( <i>Triticum aestivum</i> L.)
2009
Moussa, H. R. | EL-Gamal, S. M.
Treatment with CdCl <sub>2</sub> (0, 100, 400 and 1000 μM) resulted in the inhibition of root dry biomass and root elongation and to increased Cd accumulation in the roots. These treatments also decreased the relative water content, chlorophyll content, <sup>14</sup> CO fixation, phosphoenol pyruvate carboxylase and ribulose-1,5-bisphosphate carboxylase activity and abscisic acid (ABA) content, while increasing the malondialdehyde, hydrogen peroxide and free proline contents and causing changes in the chloroplast and root ultrastructure. Pretreatment of seeds with SA (500 μM) for 20 h resulted in the amelioration of these effects.
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