Toxic effects of lanthanides on Chlorella autotrophica

Abstract

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

CLC Number:

X171.5

SU Dan, TAI Peidong, LI Peijun, KE Xin. Toxic effects of lanthanides on Chlorella autotrophica[J]. cje, 2005, (4): 382-384.

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Toxic effects of lanthanides on Chlorella autotrophica

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