Abstract
Metal tolerance capacity of Salvinia natans, a metal hyperaccumulator, was evaluated. Plants were exposed to 10, 30 and 50 mg L−1 of Zn, Cd, Co, Cr, Fe, Cu, Pb, and Ni. Plant biomass, photosynthetic efficiency, quantum yield, photochemical quenching, electron transport rate and elemental (%C, H and N) constitution remained unaffected in Salvinia exposed to 30 mg L−1 of heavy metals, except for Cu and Zn exposed plants, where significant reductions were noted in some of the measured parameters. However, a significant decline was noted in most of the measured parameters in plants exposed to 50 mg L−1 of metal concentration. Results suggest that Salvinia has fairly high levels of tolerance to all the metals tested, but the level of tolerance varied from metal to metal.
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Dhir, B., Srivastava, S. Heavy Metal Tolerance in Metal Hyperaccumulator Plant, Salvinia natans . Bull Environ Contam Toxicol 90, 720–724 (2013). https://doi.org/10.1007/s00128-013-0988-5
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DOI: https://doi.org/10.1007/s00128-013-0988-5