| 基质镉含量对桃树镉分布和几项生化指标的影响 |
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| 引用本文： | 关伟,王有年,邢彦峰,梁为,刘祥林,王一鸣.基质镉含量对桃树镉分布和几项生化指标的影响[J].北京农学院学报,2007,22(4):1-4. |
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| 作者姓名： | 关伟 王有年 邢彦峰 梁为 刘祥林 王一鸣 |
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| 作者单位： | 北京农学院,植物科学技术系,北京,102206;北京市平谷区人民政府,果品办公室,北京,101200;北京农学院,植物科学技术系,北京,102206;北京市平谷区人民政府,果品办公室,北京,101200 |
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| 基金项目： | 国家自然科学基金资助项目(30170759,30571506)，北京市自然科学基金重点资助项目(6071001)，北京市科委区县科技专项资助项目(2006)，北京市教委平台建设资助项目(2006)，北京市都市型果业学科与果树生态安全创新团队资助项目 |
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| 摘 要： | 以“大久保（Okubo）”和“丽春（Lichun）”桃（Prunus Persica．（L．）Batsch．）为试材，研究了镉胁迫下树体中镉的分布和功能叶中几种生理生化指标的变化，包括品种间镉含量、叶绿素含量、叶内质膜过氧化产物（MDA）含量、超氧化物歧化酶（SOD）活性、叶内可溶性糖和细胞膜透性等。结果表明，两品种叶绿素、可溶性糖含量、细胞膜透性均表现出先显著升高，随后又显著下降，在镉含量达100mg／kg时细胞膜透性又显著升高；MDA，SOD含量显著升高。
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| 关 键 词： | 镉积累 生理生化指标 桃树 |
| 文章编号： | 1002-3186-（2007）04-0001-04 |
| 收稿时间： | 2007-06-09 |
| 修稿时间： | 2007年6月9日 |
Effect of Cadmium Content in Medium on Cadmium Distribution and Physiological or Biochemical Prameters in Peach Tree |
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| GUAN Wei,WANG You-nian,XING Yan-feng,LIANG Wei,LIU Xiang-lin,WANG Yi-ming.Effect of Cadmium Content in Medium on Cadmium Distribution and Physiological or Biochemical Prameters in Peach Tree[J].Journal of Beijing Agricultural College,2007,22(4):1-4. |
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| Authors: | GUAN Wei WANG You-nian XING Yan-feng LIANG Wei LIU Xiang-lin WANG Yi-ming |
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| Institution: | GUAN Wei, WANG You-nian, XING Yan-feng, LIANG Wei, LIU Xiang-lin, WANG Yi-ming (1. Department of Plant Science and Technology,Beijing University of Agriculture, Beijing 102206, China; 2. Pinggu District of Fruit Bureau in Beijing, Beijing 101200, China) |
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| Abstract: | The changes of cadmium distribution in two cultivars of peach(Prunus Persica.(L)Batsch,lichun' and Okubo')and physiological and biochemical prameters in leaves under different cadmium stress were studied including cadmium distribution,the contents of chlorophyll,malondialdehvde(MDA),activity of superoxide dismutase(SOD),dissoluble sugar content and plasma membrane permeability.The results show that:at early stage,the contents of chlorophyll,soluble sugars and plasma membrane permeability of two varieties significantly increase and then decline compared with contrast,but the plasma membrane permeability significantly increase again under 100 mg/kg Cd concentration;The content of MDA and activity of SOD iucrease significantly. |
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| Keywords: | cadmium enrichment physiology peach |
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