Phytoremediation capacity of aquatic plants is associated with the degree of phytochelatin polymerization

Anamaria Török, Zsolt Gulyás, G. Szalai, G. Kocsy, Cornelia Majdik

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Phytochelatins (PCs) play important role in phytoremediation as heavy metal binding peptides. In the present study, the association between heavy metal removal capacity and phytochelatin synthesis was compared through the examination of three aquatic plants: Elodea canadensis, Salvinia natans and Lemna minor. In case of a Cd treatment, or a Cd treatment combined with Cu and Zn, the highest removal capacity was observed in L. minor. At the same time, E. canadensis showed the lowest removal capacity except for Zn. The heavy metal-induced (Cu + Zn + Cd) oxidative stress generated the highest ascorbate level in L. minor. Cd in itself or combined with the other two metals induced a 10-15-fold increase in the amount of γ(phonetic)-glutamylcysteine in L. minor while no or smaller changes were observed in the other two species. Correspondingly, the total PC content was 6-8-fold greater in L. minor. In addition, PCs with higher degree of polymerization were only observed in L. minor (PC4, PC6 and PC7) while PC2 and PC3 occurred in E. canadensis and S. natans only. The correlation analysis indicated that the higher phytoremediation capacity of L. minor was associated with the synthesis of PCs and their higher degree of polymerization.

Original languageEnglish
Pages (from-to)371-378
Number of pages8
JournalJournal of Hazardous Materials
Volume299
DOIs
Publication statusPublished - Dec 1 2015

Fingerprint

Phytochelatins
Environmental Biodegradation
phytoremediation
aquatic plant
polymerization
Polymerization
Heavy metals
heavy metal
Heavy Metals
fold
metal binding
Oxidative stress
Speech analysis
Hydrocharitaceae
peptide
Peptides
Association reactions
Phonetics
metal
Metals

Keywords

  • Cadmium
  • Heavy metal
  • Lemna minor
  • Phytochelatin synthesis
  • Phytoremediation

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Phytoremediation capacity of aquatic plants is associated with the degree of phytochelatin polymerization. / Török, Anamaria; Gulyás, Zsolt; Szalai, G.; Kocsy, G.; Majdik, Cornelia.

In: Journal of Hazardous Materials, Vol. 299, 01.12.2015, p. 371-378.

Research output: Contribution to journalArticle

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