| 镉、铅及其相互作用对小白菜生理生化特性的影响 |
| |
| 引用本文： | 秦天才,吴玉树,王焕校.镉、铅及其相互作用对小白菜生理生化特性的影响[J].生态学报,1994,14(1):46-50. |
| |
| 作者姓名： | 秦天才 吴玉树 王焕校 |
| |
| 作者单位： | 华中农业大学，云南大学 |
| |
| 摘 要： | 本文研究了溶液培养条件下小白菜对镉，铅的吸收积累规律的镉，铅及其相互作用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。
|
| 关 键 词： | 镉 铅 小白菜 生理生化指标 |
| 收稿时间： | 1992/4/19 0:00:00 |
| 修稿时间： | 1992/10/27 0:00:00 |
EFFECT OF CADMIUM,LEAD AND THEIR INTERACTIONS ON THE PHYSIOLOGICAL AND BIOCHEMICAL CHARACTERISTICS OF BRASSICA CHINENSIS |
| |
| Qin Tiancai.EFFECT OF CADMIUM,LEAD AND THEIR INTERACTIONS ON THE PHYSIOLOGICAL AND BIOCHEMICAL CHARACTERISTICS OF BRASSICA CHINENSIS[J].Acta Ecologica Sinica,1994,14(1):46-50. |
| |
| Authors: | Qin Tiancai |
| |
| Institution: | Huazhong Agricultural University; Wuhan; 430070 |
| |
| Abstract: | n 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 contents,enhanced the decompositionof ascorbic acid,caused the free proline accumulation,and inhibited the NR activities.Pbadding to solution enhanced the toxicity of Cd on plant. |
| |
| Keywords: | cadmium lead Brassica chinensis physiological and biochemical indicators |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《生态学报》浏览原始摘要信息 |
| 点击此处可从《生态学报》下载免费的PDF全文 |
|
