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作 者 ：秦天才,吴玉树,王焕校

期 刊 ：生态学报 1994年 14卷 1期 页码：46~50

关键词：镉；铅；小白菜；生理生化指标。；

Keywords:cadmium, lead, Brassica chinensis, physiological and biochemical indicators.,

摘 要 ：本文研究了溶液培养条件下小白菜对镉、铅的吸收积累规律和镉、铅及其相互作用对小白菜生理生化特性的影响。结果表明：植物体内镉、铅含量与培养液中镉、铅浓度呈正相关性，镉可降低植物对铅的吸收；镉超过一定浓度后，对叶绿素起破坏作用，并促进抗坏血酸分解，使游离脯氨酸积累，抑制硝酸还原酶活性。含镉的培养液中，由于铅的加入，加强了镉对植物的毒害作用。

Abstract:In the present paper indicated was the up take and accumulation of Cd and Pb by Brassi-ca chinensis grown in hydroponic culture,and the effect of Cd and Pb and their interactions onthe physiological and biochemical characteristics of Brassica chinensis. The experimental re-sults showed that Cd and Pb contents in plant was in positive correlation with the concentra-tions of Cd and Pb.The uptake of Pb by Brassica chinensis was inhibited by Cd.Cd, beyond acertain concentration,led to a reduction in chlorophyll ...

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