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Open Access Green as soon as Postprint is submitted to ZB.
Phytoremediation of organic xenobiotics - Glutathione dependent detoxification in Phragmites plants from European treatment sites.
Bioresour. Technol. 99, 7183-7191 (2008)
Studies on the uptake of several organic xenobiotics and on their subsequent conjugation to biomolecules have been performed to elucidate the use of reed plants in phytoremediation of polluted water. Phragmites australis plants were able to accumulate organic xenobiotics in their rhizomes. The uptake was correlated to the logKOW and pKa of the xenobiotics and highest with compounds exhibiting logKOWs between 1 and 3. Detoxification of xenobiotics was demonstrated when the activity of glutathione S-transferase was determined in plants from various treatment sites. Enzyme activities were strongly dependent on the provenience of the plant and the history of the stand. Detoxification enzymes were also inducible. Naphthylic acetic acid (NAA), 2,4-dichlorophenol and BION were tested as potential inducers. BION was able to induce the GST activity 5-fold, albeit only for a short period of hours. The mechanism of induction and the flexibility of the detoxification system of certain ecotypes of reed toward stress or the pollution level will require further investigation.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Phragmites australis; Phytoremediation; Organic xenobiotics; Glutathione S-transferase
ISSN (print) / ISBN
0960-8524
e-ISSN
1873-2976
Journal
Bioresource Technology
Quellenangaben
Volume: 99,
Issue: 15,
Pages: 7183-7191
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Research Unit Microbe-Plant Interactions (AMP)