| 大豆根细胞质膜上的稀土元素 |
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| 引用本文： | 黄碧霞,蔡继宝,芮蕾,郑志侠. 大豆根细胞质膜上的稀土元素[J]. 稀土, 2001, 22(3): 56-58 |
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| 作者姓名： | 黄碧霞 蔡继宝 芮蕾 郑志侠 |
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| 作者单位： | 中国科学技术大学化学系, |
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| 基金项目： | 国家自然科学基金资助项目，元素形态与生物可给性的研究（29775030） |
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| 摘 要： | 本文采用离心分离的方法获得细胞质膜后，再用去污剂SDS(十二烷基磺酸钠)溶解质膜成分。将所得到的富质膜成分样品进行排阻高效液相色谱分离。用ICP-MS和ICP-AES分别检测级分溶液中的稀土元素含量和钙含量。研究结果表明，在根细胞质膜上有La，而且La至少有四种不同的结合形态，其他稀土元素Ce,Pr和Nd同La一样也有类似的四种结合形态。
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| 关 键 词： | 细胞质膜；稀土元素；钙 |
| 文章编号： | 1004-0277（2001)03-0056-03 |
| 修稿时间： | 2000-05-04 |
Rare Earth Elements inPlasma Membranes of Cells of Soybean Roots |
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| HUANG Bi-xia,CAI Ji-bao,RUI Lei,ZHENG Zhi-xia. Rare Earth Elements inPlasma Membranes of Cells of Soybean Roots[J]. Chinese Rare Earths, 2001, 22(3): 56-58 |
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| Authors: | HUANG Bi-xia CAI Ji-bao RUI Lei ZHENG Zhi-xia |
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| Abstract: | Plasma membranes of cells of soybean roots were prepared by centrifugation method and solubilizated by SDS.Plasma membrane components-enriched sample was chromatographed on size exclution column.Rare earth element contents or calcium contents of fraction solutions were determined by ICP-MS or by ICP-AES.Experimental results showed that there was lanthanum in plasma membranes of cells of soybean roots and it had at least four speciations.Ce,Pr and Nd had same ones as La. |
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| Keywords: | plasma membrane rare earth calcium |
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