Evaluation of the potential of (pelargonium roseum) scented geranium plant to uptake and accumulate lead
DOI:
https://doi.org/10.15626/Eco-Tech.2003.017Keywords:
Phytoremediation, Lead hyperaccumulator, Scented Geranium, Pelargonium roseumAbstract
The major objective of this investigation was to evaluate the potential of scented
geranium plant, Pelargonium roseum to uptake and accumulate lead under greenhouse
conditions. Plants were grown in an artificial soil system and exposed to a range of lead
concentrations (0-2500mg.L- 1 Pb (NO3)2) in over a 14 day treatment period. The results
showed that the uptake and accumulation of lead in shoot and root followed a similar
trend. The highest amount of lead accumulation was detected at 2500mg.L- 1 lead nitrate
in the culture solution that was 86566.68±7864 mg.kg-' DW for roots and
4416.04±502.27 mg.kg-' DW for shoots. The linear pattern of uptake suggests the
involvement of both active and passive transport mechanisms for lead uptake. Finally,
because the high concentrations of lead found in shoots of scented geranium plants has
far exceeded 0.1 % DW, Pelargonium roseum may be a new hyperaccumulator species
for this metal and be used for phytoremediation industry.
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