(cest2017_01407) Heavy metal uptake from the green alga Chlamydomonas reinhardtii: Single and mix-metal exposure

摘要

Chlamydomonas reinhardtii, a unicellular photosynthetic alga which is considered as a model organism for multidisciplinary research, was grown in media polluted with three different heavy metals (cadmium, nickel and lead), at several concentrations, either as single pollutants or in mixtures. In this study, the growth rate of the cells in the presence of the pollutant metals in the nutrient solutions was determined, as well as the accumulation of the metals in the cells, for all the pollution levels and mixtures. The synergistic potential of the mixtures of the pollutants on the accumulation of the metals and on the growth of the cells was examined. The expression of glutathione peroxidase gene and the activity of two enzymes in the exposed cells were also determined.