通过保护性酶活性及叶绿素、MDA含量的检测,根系活力及电导率测定研究铈减轻水稻幼苗抗重金属铅毒害能力的机理.结果表明,用适宜浓度Ce(NH4)2(NO3)6浸种后培养的幼苗,经重金属铅胁迫后,能有效地降低相对电导率,维持较高的SOD活性,提高POD、CAT活性,减缓MDA的积累.同时,能促进水稻幼苗叶绿素含量及根系活力的提高.
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