Skip to main content
padlock icon - secure page this page is secure

Toxicity, Accumulation, and Removal of Heavy Metals by Three Aquatic Macrophytes

Buy Article:

$60.00 + tax (Refund Policy)

A comprehensive understanding of the uptake, tolerance, and transport of heavy metals by plants will be essential for the development of phytoremediation technologies. In the present paper, we investigated accumulation, tissue and intracellular localization, and toxic effects of cadmium (Cd), lead (Pb), zinc (Zn), and copper (Cu) in three aquatic macrophytes (the angiosperms Lemna minor and Elodea canadensis, and the moss Leptodictyum riparium). We also tested and compared their capacity to absorb heavy metal from water under laboratory conditions. Our data showed that all the three species examined could be considered good bioaccumulators for the heavy metals tested. L. riparium was the most resistant species and the most effective in accumulating Cu, Zn, and Pb, whereas L. minor was the most effective in accumulating Cd. Cd was the most toxic metal, followed by Pb, Cu, and Zn. At the ultrastructural level, sublethal concentrations of the heavy metals tested caused induced cell plasmolysis and alterations of the chloroplast arrangement. Heavy metal removal experiments revealed that the three macrophytes showed excellent performance in removing the selected metals from the solutions in which they are maintained, thus suggesting that they could be considered good candidates for wastewaters remediation purpose.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: X-ray ESEM microanalysis; aquatic plants; atomic absorption spectrometry; phytoremediation; plant-metal interactions

Document Type: Research Article

Affiliations: 1: Department of Biological Sciences, Section of Plant Biology,University Federico II, Naples, Italy 2: C.I.S.M.E.,University Federico II, Naples, Italy 3: Department of Biological Sciences, Evolutionary and Comparative Section,University Federico II, Naples, Italy 4: CNR Institute of Protein Biochemistry, Naples, Italy

Publication date: April 1, 2012

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more