| 稀土元素对小球藻生长的影响 |
| 摘要点击 908 全文点击 1199 投稿时间：1995-07-30 |
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| 中文关键词 稀土元素 小球藻 生长影响 |
| 英文关键词 rare-earth element Chlorella pyrenoides effect on growth and reproduction |
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| 中文摘要 |
| 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),稀土元素对小球藻生长产生明显的抑制作用。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。 |
| 英文摘要 |
| 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. |
