| 重金属复合污染对小麦幼苗生长的毒性效应 |
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| 引用本文： | 孟庆俊,袁训珂,冯启言,肖昕,丁苏建.重金属复合污染对小麦幼苗生长的毒性效应[J].安徽农业科学,2008,36(1):122-124. |
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| 作者姓名： | 孟庆俊 袁训珂 冯启言 肖昕 丁苏建 |
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| 作者单位： | 中国矿业大学环境与测绘学院,江苏徐州,221008 |
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| 摘 要： | 目的]为揭示重金属复合污染机制提供依据。方法]采用水培法,研究单一及复合重金属对小麦幼苗叶绿素含量的影响。结果]结果表明:Cu、Cd、Cr、Pb、Zn 5种重金属单独作用时,在低浓度区对小麦幼苗叶绿素的合成有促进作用,在高浓度区产生显著的抑制效应。铜与其他4种重金属联合作用时,其联合作用类型铜-镉表现为协同作用;铜-铬为拮抗作用;铜-铅趋于相加作用;铜-锌表现为拮抗作用。结论]不同重金属复合污染的作用机理不同。
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| 关 键 词： | 重金属 复合污染 小麦幼苗 叶绿素 |
| 文章编号： | 0517-6611（2008）01-00122-03 |
| 收稿时间： | 2007-08-28 |
| 修稿时间： | 2007年8月28日 |
Toxic Effects of Compound Pollution with Heavy Metals on the Growth of Wheat Seedlings |
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| MENG Qing-jun.Toxic Effects of Compound Pollution with Heavy Metals on the Growth of Wheat Seedlings[J].Journal of Anhui Agricultural Sciences,2008,36(1):122-124. |
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| Authors: | MENG Qing-jun |
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| Abstract: | Objective] The research aimed to provide basis for revealing the compound pollution mechanism of heavy metals.Method] The effects of single and compound heavy metals on chlorophyll content in wheat seedlings were studied by using water culture method.Result] When 5 kinds of heavy metals including Cu,Cd,Cr,Pb and Zn played their functions singly,they had a promotion effect on the synthesis of chlorophyll in wheat seedlings in low concentration range and a significant inhibition effect in high concentration range.When Cu combined its function with 4 other heavy metals,their combined effect types showed a synergistic effect of Cu and Cd,antagonistic effects of Cu and Cr,additive effect of Cu and Pb,and antagonistic effect of Cu and Zn.Conclusion] The compound pollution mechanisms of different heavy metals were different. |
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| Keywords: | Heavy metal Compound pollution Wheat seedling Chlorophyll |
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