Genetic toxicity in surface water from Guaíba Hydrographic Region under the influence of industrial, urban and agricultural sewage in the Drosophila Wing-Spot Test

Mutagenic and recombinagenic activity of surface waters in the Guaíba Hydrographic Region (RS, Brazil) was investigated using the SMART in Drosophila melanogaster. Two positive results in Caí River (September 2000 and August 2001) and in Taquari River (August 2001 and February 2002) – linked to dire...

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Bibliographic Details
Published in:Environmental pollution (1987) 2006-02, Vol.139 (3), p.469-476
Main Authors: do Amaral, Viviane Souza, Sinigaglia, Marialva, Reguly, Maria Luiza, de Andrade, Heloisa Helena Rodrigues
Format: Article
Language:English
Subjects:
Agriculture
Animal, plant and microbial ecology
Animals
Applied ecology
bioassays
Biological and medical sciences
Brazil
Chemical Phenomena
Chemistry, Physical
Cities
Drosophila melanogaster
Drosophila melanogaster - drug effects
Drosophila melanogaster - genetics
Ecotoxicology, biological effects of pollution
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
genetic recombination
Genotoxicity
Guaíba Hydrographic Region
hydrochemistry
Hydrogen-Ion Concentration
Industrial Waste - adverse effects
Mitotic recombination
mutagenicity
Mutagenicity Tests - methods
Mutagens - toxicity
physicochemical properties
Recombination, Genetic - drug effects
rivers
Sewage
SMART
surface water
Temperature
toxicity testing
Water Pollutants, Chemical - toxicity
water pollution
Wings, Animal - drug effects
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Summary:Mutagenic and recombinagenic activity of surface waters in the Guaíba Hydrographic Region (RS, Brazil) was investigated using the SMART in Drosophila melanogaster. Two positive results in Caí River (September 2000 and August 2001) and in Taquari River (August 2001 and February 2002) – linked to direct recombinagenic toxicants were observed. In Jacuí samples, an indirect mutagenic and recombinagenic action was detected in a September 2000 collection and a direct recombinational activity was observed in February 2002. Also in February 2002 – samples from Dilúvio Brook and Guaíba Lake (GPC) were able to induce wing spots by mitotic recombinagenesis. The former sampling site showed toxicants to have a direct action, and the latter an increment in mitotic recombination that depended on metabolic action. The SMART wing test shows that all positive responses were mainly related to homologous mitotic recombination. Drosophila Wing-Spot Test can be used for detection of environmental mutagenesis.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2005.06.004