Disinfection of surface drinking water, particularly water chlorination, produces by-products with potential genotoxic and/or carcinogenic activity. A study carried out at a pilot plant for drinking water disinfection of lake water revealed mutagenic activity of three different disinfectants (sodium hypochlorite, chlorine dioxide and peracetic acid) in different seasons using in situ mutagenicity assays, both in animal (micronucleus test) and in plant organisms (anaphase chro- mosomal aberration and micronucleus tests). The effects of the disinfectants appeared to be modulated by the season of exposure. In this study, we tried to understand if (and to what extent) the temperature parameter could actually play an independent role in the registered seasonal variation of mutagenic effects, neglecting the variation of other parameters, e.g. physical conditions and chemical composition of the lake water. Therefore plants (Allium cepa for chromosomal aberration test and Vicia faba for micronucleus test) were exposed to the same disinfected lake-water samples at differ- ent temperatures (10°C, 20°C and 30°C), according the ones registered during the in situ experiment. Long-term expo- sure at the temperatures of 20°C (both Vicia faba and Allium cepa) and 30°C (Vicia faba only) to disinfected waters in- duced clear mutagenic effects. These results show that temperature is an important variable which should be taken into account when in situ exposure of plants is planned for mutagenicity testing. Also, different plant systems clearly show specific temperature ranges suitable for their growth, thereby indicating the need for an accurate selection of the test organism for a specific experimental plan.

Gustavino, B., Ceretti, E., Zani, C., Zerbini, I., Rizzoni, M., Monarca, S., et al. (2012). Influence of Temperature on Mutagenicity in Plants Exposed to Surface Disinfected Drinking Water. JOURNAL OF WATER RESOURCE AND PROTECTION, 4, 638-647 [doi:10.4236/jwarp.2012.48074].

Influence of Temperature on Mutagenicity in Plants Exposed to Surface Disinfected Drinking Water.

GUSTAVINO, BIANCA;RIZZONI, MARCO;
2012-08-01

Abstract

Disinfection of surface drinking water, particularly water chlorination, produces by-products with potential genotoxic and/or carcinogenic activity. A study carried out at a pilot plant for drinking water disinfection of lake water revealed mutagenic activity of three different disinfectants (sodium hypochlorite, chlorine dioxide and peracetic acid) in different seasons using in situ mutagenicity assays, both in animal (micronucleus test) and in plant organisms (anaphase chro- mosomal aberration and micronucleus tests). The effects of the disinfectants appeared to be modulated by the season of exposure. In this study, we tried to understand if (and to what extent) the temperature parameter could actually play an independent role in the registered seasonal variation of mutagenic effects, neglecting the variation of other parameters, e.g. physical conditions and chemical composition of the lake water. Therefore plants (Allium cepa for chromosomal aberration test and Vicia faba for micronucleus test) were exposed to the same disinfected lake-water samples at differ- ent temperatures (10°C, 20°C and 30°C), according the ones registered during the in situ experiment. Long-term expo- sure at the temperatures of 20°C (both Vicia faba and Allium cepa) and 30°C (Vicia faba only) to disinfected waters in- duced clear mutagenic effects. These results show that temperature is an important variable which should be taken into account when in situ exposure of plants is planned for mutagenicity testing. Also, different plant systems clearly show specific temperature ranges suitable for their growth, thereby indicating the need for an accurate selection of the test organism for a specific experimental plan.
ago-2012
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/18 - GENETICA
English
Con Impact Factor ISI
Clastogenicity/Aneugenicity; Allium cepa Aberration Test; Vicia faba Micronucleus Test; Temperature Exposure; Water Disinfection.
http://dx.doi.org/10.4236/jwarp.2012.48074
Gustavino, B., Ceretti, E., Zani, C., Zerbini, I., Rizzoni, M., Monarca, S., et al. (2012). Influence of Temperature on Mutagenicity in Plants Exposed to Surface Disinfected Drinking Water. JOURNAL OF WATER RESOURCE AND PROTECTION, 4, 638-647 [doi:10.4236/jwarp.2012.48074].
Gustavino, B; Ceretti, E; Zani, C; Zerbini, I; Rizzoni, M; Monarca, S; Feretti, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/172343
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