The toxic action and interactions of copper and cadmium to the marine alga Dunaliella minuta, in both acute and chronic exposure

The effective concentrations of copper and cadmium which reduced the population growth of Dunaliella minuta by 50% after 96 h of static exposure, were determined to be 7.57 microM Cu and 0.34 microM Cd. Short-term static exposure to both metals indicated that their combined action is antagonistic wi...

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Bibliographic Details
Published in:Archives of environmental contamination and toxicology 1991-02, Vol.20 (2), p.271-271
Main Authors: Visviki, I. (Lehman College of C.U.N.Y., Bronx, NY), Rachlin, J.W
Format: Article
Language:English
Subjects:
CADMIO
CADMIUM
Cadmium - toxicity
CHLOROPHYCEAE
COBRE
COPPER
Copper - toxicity
CUIVRE
Dunaliella minuta
Eukaryota - drug effects
FITOTOXICIDAD
Marine
PHYTOTOXICITE
PHYTOTOXICITY
POLLUTION
POLUCION
Regression Analysis
Seawater
Water Pollutants - toxicity
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Summary:The effective concentrations of copper and cadmium which reduced the population growth of Dunaliella minuta by 50% after 96 h of static exposure, were determined to be 7.57 microM Cu and 0.34 microM Cd. Short-term static exposure to both metals indicated that their combined action is antagonistic with respect to growth of this chlorophyte. Additionally, long-term exposure to low levels of Cu or Cd led to the acquisition of tolerance towards Cu and Cd, respectively, and co-tolerance towards Cu.
ISSN:0090-4341
1432-0703
DOI:10.1007/BF01055915