Aquaculture International

, Volume 6, Issue 1, pp 57–66 | Cite as

The behaviour of the microalgae Tetraselmis chuii in cadmium-contaminated solutions

  • Antonio C. A. da Costa
  • Francisca P. de Franca


The accumulation of cadmium by living and dead cells of the green microalgae Tetraselmis chuii was studied both in cell suspensions and in growing conditions. Microalgal cell suspensions accumulated a maximum of 292.60 (23.09) and 210.54 (16.05) mg Cd (g biomass)-1 when living and dried cells were used, respectively. After biosorption, the total cadmium accumulated was efficiently desorbed with concentrated EDTA solution, indicating that cadmium accumulation took place through surface structural components. During cell growth in cadmium-contaminated medium, the toxic effect of the metal proved to be higher for increasing metal concentrations in the medium. This increasing toxicity had a marked influence upon cell productivity. Cadmium was not incorporated during growth of T. chuii cells.

Cadmium uptake Cell growth Desorption Tetraselmis chuii 


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Copyright information

© Chapman and Hall 1998

Authors and Affiliations

  • Antonio C. A. da Costa
    • 1
  • Francisca P. de Franca
    • 2
  1. 1.Instituto de Quimica, Departmento de Tecnologia de Processos Bioquimicos, Rua Sao Francisco XavierUniversidade do Estado do Rio de JaneiroRio de JaneiroBrasil
  2. 2.Centro de Tecnologia, Escola de Quimica, Departamento de Engenharia BioquimicaUniversidade Federal do Rio de JaneiroRio de JaneiroBrasil

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