The research on Cu++ metal bioabsorption with nasturtium officinale

The aim of this work is to look at the absorption rates of Cu++ ions by Nasturtium officinale. For this purpose the solutions containing different concentrations of Cu++ ions (0.1; 0.3; 0.5; 1; 2; 3; 4 and 5 mgL(-1)) have been prepared. We have placed the plants of the relatively same size in each concentration. After 24, 48 and 72 h, the Cu++ concentrations in the solutions were measured for each concentrations. The plants exposed to the Cu++ ion concentrations of 0.1; 0.3 and 0.5 mgL(-1) were found to absorption all the metal ions present without any effects on the plants, while at the concentrations of 1, 2 and 3 mgL(-1), there is an accumulation at certain levels, despite some effects on the plants. However, at the solutions of 4 and 5 mgL(-1), it was observed that the plants died after a short time. In conclusion, Nasturtium officinale is able to absorption the lower concentrations of Cu++ ions but it seems that it is not able to accumulate the higher concentrations of Cu++ ions.