Study on chromium-binding capacity of Callitriche cophocarpa in an aquatic environment

Joanna Augustynowicz , Joanna Kyzioł-Komosińska , Sylwester Smoleń , Andrzej Waloszek

Abstract

The aim of the present study was to investigate the binding strength of chromium (Cr) ions to aquatic macrophyte Callitriche cophocarpa. Shoots of the plants were incubated in a natural water solution containing Cr(III) or Cr(VI) at a concentration ranging from 0.5 to 4 mM under laboratory conditions. We found that C. cophocarpa has an extremely high capacity to bind Cr. The average level of accumulation reached 28,385 or 7,315 mg kg−1 dry weight for plants incubated with Cr(III) or Cr(VI), respectively. Shoots incubated in a 0.5 mM concentration of Cr(III) for 5 days removed almost 100 % of the metal from solution. The major pool of the bound Cr(III) ions follows the strongest mechanism of metal-binding to an organic matter. In contrast, we found that only 25 % of Cr(VI) ions are bound into the metallo-organic compounds and 57 % of Cr(VI) exists in an easily remobilizable form. Activity of a photosynthetic electron transport (as F V/F M) was evaluated with respect to the Cr-binding mechanism. Our results contribute to the development of knowledge on processes controlling bioremediation of heavy-metallic compounds in aquatic systems.
Author Joanna Augustynowicz (FoBaH / IoPBaB / DoBaPP)
Joanna Augustynowicz,,
- Department of Botany and Plant Physiology
, Joanna Kyzioł-Komosińska
Joanna Kyzioł-Komosińska,,
-
, Sylwester Smoleń (FoBaH / IoPBaB / DoBaPP)
Sylwester Smoleń,,
- Department of Botany and Plant Physiology
, Andrzej Waloszek
Andrzej Waloszek,,
-
Journal seriesArchives of Environmental Contamination and Toxicology, ISSN 0090-4341, (A 25 pkt)
Issue year2013
Vol64
No3
Pages410-418
Publication size in sheets0.5
DOIDOI:10.1007/s00244-012-9853-5
URL http://link.springer.com/content/pdf/10.1007%2Fs00244-012-9853-5.pdf
Internal identifierWBIO/2013/129
Languageen angielski
Score (nominal)25
ScoreMinisterial score = 25.0, 28-05-2019, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 28-05-2019, ArticleFromJournal
Citation count*10 (2016-06-02)
Additional fields
FinansowanieThe work was supported by the Grant No. DEC-2011/03/B/NZ9/00952 from the National Science Centre, Poland
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