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Assessment of the genotoxicity of Cu and Zn in raw and anaerobically digested slurry with the Vicia faba micronucleus test

Marcato, Claire-Emmanuelle and Pinelli, Eric and Pourrut, Bertrand and Silvestre, Jérôme and Guiresse, Maritxu Assessment of the genotoxicity of Cu and Zn in raw and anaerobically digested slurry with the Vicia faba micronucleus test. (2009) Mutation Research - Genetic Toxicology and Environmental Mutagenesis, vol. 672 (n° 2). ISSN 1383-5718

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Official URL: http://dx.doi.org/10.1016/j.mrgentox.2008.10.018

Abstract

Genotoxicity of Cu and Zn was assessed by use of the micronucleus (MN) test on Vicia faba roots. Plants were exposed to various leachates of rawand anaerobically digested pig slurry, with maximum total concentrations of 200MCu and 600MZn. The results indicated stabilisation of the organic matter during anaerobic digestion of the slurry and bioconversion of some phytotoxic organic compounds (e.g. phenols or p-cresol), but did not showa relationship between Cu and Zn concentrations and MN frequency. Exposure of Vicia plants to binary inorganic solutions of Cu and Zn (CuSO4/ZnSO4, 1:3) showed a significant micronucleus induction at concentrations of 40M Cu and 120M Zn and higher. When MN frequency was plotted against dissolved Cu (<0.45m), applied as slurry or as CuSO4, a single curve was obtained. At concentrations lower than 10M, modulation of the genotoxic effect of Cu was found. At concentrations up to 150M,MNinduction increased significantly, while phytotoxic symptoms appeared at higher concentrations.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Mutation Research - Genetic Toxicology and Environmental Mutagenesis website : http://www.sciencedirect.com/science/journal/13835718
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By: Florence Amor

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