| 稀土元素对小球藻生长的影响 |
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| 引用本文： | 胡勤海,管丽莉,叶兆杰.稀土元素对小球藻生长的影响[J].环境科学,1996,17(2):37-38,63. |
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| 作者姓名： | 胡勤海 管丽莉 叶兆杰 |
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| 作者单位： | 浙江农业大学环保系，杭州市拱墅区环保站 |
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| 摘 要： | 研究稀土元素镧（Ｌａ）铈（Ｃｅ）、镨（Ｐｒ）、钕（Ｎｄ）及其混合物对蛋白核小球藻（Ｃｈｌｏｒｅｌｌａ ｐｙｒｅｎｏｉｄｅｓ）生长的影响。结果表明，低浓度（２ｍｇ／Ｌ）稀土元素对小球藻生长影响不大；随处理浓度的提高（１０－２００ｍｇ／Ｌ），稀土元素小球藻生长明显的抑制作用。各元素对小球藻的毒性顺序（按ＥＣ５０计）依次为，Ｎｄ〉Ｃｅ〉Ｐｒ〉Ｌａ〉混合稀土，但毒性差异很小。
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| 关 键 词： | 稀土元素 小球藻 生长影响 毒性 |
| 收稿时间： | 1995/7/30 0:00:00 |
Effects of Rare-Earth Elements on Growth and Reproduction of Chlorella pyrenoides |
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| Hu Qinhai.Effects of Rare-Earth Elements on Growth and Reproduction of Chlorella pyrenoides[J].Chinese Journal of Environmental Science,1996,17(2):37-38,63. |
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| Authors: | Hu Qinhai |
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| Institution: | Dept. of Environ.Sci., Zhejiang Agricultural University, Hangzhou 310029;Dept. of Environ.Sci., Zhejiang Agricultural University, Hangzhou 310029;Dept. of Environ.Sci., Zhejiang Agricultural University, Hangzhou 310029 |
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| Abstract: | It was studied that effects of rare-earth elements (La,Ce, Pr, Nd and their mixture) on growth and reproduction of Chlorella pyrenoides. The results showed that effects of rare-earth elements on growth and reproduction of Chlorella pyrenoides were not apparent under lower concentration (2mg/L), but it was inhibited as the concentration increased; and the toxicity (EC50,96 h.) of rareearth elements on Chlorella pyreaoides was insequence as:Nd>Ce>Pr>La>mixture of them, but little difference. |
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| Keywords: | rare-earth element Chlorella pyrenoides effect on growth and reproduction |
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