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生态学杂志 ›› 2005, Vol. ›› Issue (4): 382-384.

• 研究报告 • 上一篇    下一篇

镧系元素对海水小球藻的毒性效应

苏丹1,2, 台培东1, 李培军1, 可欣1,2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳, 110016;
    2. 中国科学院研究生院, 北京, 100039
  • 收稿日期:2004-07-24 修回日期:2004-11-08 出版日期:2005-04-10
  • 通讯作者: 苏丹,女,1980年2月生,博士研究生,主要从事污染生态毒理学方面的研究.
  • 基金资助:
    国家自然科学基金重点项目(20337010);中国科学院知识创新工程主要资助项目(C12SP-SLYQYO412)

Toxic effects of lanthanides on Chlorella autotrophica

SU Dan1,2, TAI Peidong1, LI Peijun1, KE Xin1,2   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2004-07-24 Revised:2004-11-08 Online:2005-04-10

摘要: 用评价化学品对藻类毒性的标准实验方法,研究了12种镧系元素对小球藻生长的抑制情况。结果表明,12种镧系元素抑制小球藻生长的96h半效应浓度(96h-EC50)均为29.00±0.50μmol·L-1。对各剂量反应方程进行X2检验,结果表明,符合精度要求,计算出的96h-EC50真实可靠。镧系元素对海水小球藻的生物毒性是相同的,此结果对探明镧系元素对藻类的生态毒理效应具有重要意义。

关键词: 森林群落, 次生演替, 种间协变

Abstract: Employing a standard test method for evaluating the toxicity of chemicals to algae,the toxic effects of lanthanides on Chlorella autotrophica were investigated.The results showed that concentration for 50% reduction (EC50 ) of 12 kinds of lanthanide compounds in C.autotrophica growth were all 29.00±0.50 μmol·L-1 after 96h culture at 25±1 ℃.Chi-square test of each dose-response equations showed that 96h-EC50 calculated were all precise and credible.It could be concluded that the biological toxicity of lanthanides on the growth of C.autotrophica were the same,which was of importance for the clarification of lanthanides ecotoxic effects.

Key words: Forest communities, Secondary succession, Interspecies covariation

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