Title: Uptake of lead from aqueous solution using Eichhornia crassipes: effect on chlorophyll content and photosynthetic rate.
Abstract: Lead is the most significant toxin of the heavy metals posing serious effects on plants and animals. The remediation of this toxic pollutant using environment friendly materials is an urgent need. In the present study the effect of pH and concentrations on uptake capacity of lead by Eichhornia crassipes and their interplay have been studied. The rate of Pb uptake by Eichhornia crassipes is very rapid in the first 48 hrs for all the initial concentration and at various pH. The uptake efficiency of roots were more as compared to shoots. The accumulation of Pb in roots of Eichhornia crassipes was found to be very high at all pH and concentrations. The photosynthetic rate of Eichhornia crassipes sharply declined when grown in aquatic medium containing Pb. The chlorophyll content got reduced, with increasing concentration over the experimental duration, reflecting probable Pb toxicity. The results show that the plant Eichhornia crassipes does have the pH neutralizing capacity.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 3
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