| 外源亚精胺对受重金属污染的城市污泥植物修复的影响 |
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| 引用本文： | 袁菊红,胡绵好.外源亚精胺对受重金属污染的城市污泥植物修复的影响[J].水土保持学报,2011,25(5):186-190. |
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| 作者姓名： | 袁菊红 胡绵好 |
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| 作者单位： | 1. 江西财经大学园林系,南昌,330032
2. 江西财经大学资源环境系,南昌,330032 |
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| 基金项目： | 江西省自然科学基金资助项目(2009GQH0027); 江西省教育厅项目(GJJ10115) |
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| 摘 要： | 研究外施浓度为1mmol/L的亚精胺（spd）对美洲商陆修复受重金属污染城市污泥的影响。结果表明,外施spd能使美洲商陆根系生长及其生物量均增加1.5倍以上;同时能增加叶绿素a的含量和叶绿素总量,减少叶绿素的流失。外施1mmol/L spd还能明显促进美洲商陆各器官对城市污泥中Cd、Hg重金属的吸收、转运和富集,但对Cu和Zn的吸收差异不明显。上述结果表明,spd增强了美洲商陆对Cd、Hg污染的城市污泥的修复作用,并在一定程度上缓解了城市污泥中Cd2＋、Hg2＋对美洲商陆的毒害作用。
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| 关 键 词： | 亚精胺 美洲商陆 城市污泥 重金属 植物修复 |
Effect of Exogenous Spermidine on Phytoremediation of Heavy Metal Polluted Municipal Sludges |
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| YUAN Ju-hong,HU Mian-hao.Effect of Exogenous Spermidine on Phytoremediation of Heavy Metal Polluted Municipal Sludges[J].Journal of Soil and Water Conservation,2011,25(5):186-190. |
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| Authors: | YUAN Ju-hong HU Mian-hao |
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| Institution: | YUAN Ju-hong1,HU Mian-hao2(1.Department of Landscape,Jiangxi University of Finance & Economics,Nanchang 330032,2.Department of Resource Environment,Nanchang 330032) |
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| Abstract: | The effect of 1 mmol/L exogenous spermidine on remediation of heavy metal polluted municipal sludges with Phytolacca americana L.,was investigated in this paper.The results showed that the root growth and biomass of P.americana L.increased by more than 1.5 times under exogenous spermidine treatments.In addition,the contents of chlorophyll a and total chlorophyll increased significantly,and the loss of chlorophyll reduced.The absorption of Cd and Hg of municipal sludges and their transport and enrichment in ... |
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| Keywords: | spermidine Phytolacca americana L municipal sludges heavy metal phytoremesiation |
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