Pretreatment with NaCl induces tolerance of rice seedlings to subsequent Cd or Cd + NaCl stress
2013
Ma, L.J., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science | Yu, C.M., Shenyang Agricultural Univ. (China). Coll. of Agronomy | Li, X.M., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science | Li, Y.Y., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science | Wang, L.L., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science | Ma, C.Y., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science | Tao, S.Y., Liaoning Univ., Shenyang (China). Dept. of Environmental Science | Bu, N., Shenyang Normal Univ. (China). Coll. of Chemistry and Life Science
Rice (Oryza sativa L.) seedlings were grown hydroponically in Hoagland's nutrient solution under controlled conditions to investigate the effects of NaCl pretreatment on their response to subsequent application of cadmium (Cd) alone and Cd + NaCl combination. The Cd stress caused growth retardation in all plants, significantly reduced pigment content, stomatal conductance (gs), and net photosynthetic rate (PN). Cd stress significantly increased malondialdehyde and proline content. Compared to Cd treatment alone, combination stress had more detrimental effects on the above parameters. However, the NaCl pretreatment was beneficial in improving the plant growth and plant tolerance to Cd alone or combination stress.
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