Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring
The present study investigates the genotoxic, mutagenic, and cytotoxic potential of surface waters in urban streams using Allium cepa and analyzes the applicability of this assay for environmental monitoring. Water samples were collected from three streams located in the urban area of a municipality...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/391367 |
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| author | Camila Gonçalves Athanásio Daniel Prá Alexandre Rieger |
| author_facet | Camila Gonçalves Athanásio Daniel Prá Alexandre Rieger |
| author_sort | Camila Gonçalves Athanásio |
| collection | DOAJ |
| description | The present study investigates the genotoxic, mutagenic, and cytotoxic potential of surface waters in urban streams using Allium cepa and analyzes the applicability of this assay for environmental monitoring. Water samples were collected from three streams located in the urban area of a municipality in the south of Brazil. For each stream, two samples were collected, one upstream and one downstream of the pollution discharge site. Physicochemical evaluation indicated that all samples had various degrees of environmental impact, but substantial impact was seen for the downstream samples of the Preto and Pedras streams. All samples increased the frequency of chromosome aberrations (P<0.05). The sample from Pedras downstream site also caused a decrease in mitotic index (P<0.08) and increase in micronuclei (P<0.08) frequency, indicating potential cytotoxicity and mutagenicity. The Pedras stream receives mixed industrial and urban wastewater, while the Lajeado and Preto streams receive wastewater predominantly domestic in nature, which may partially explain the difference in toxicity among the samples. Moreover, the Allium cepa seeds/seedlings were shown to be extremely sensitive in detecting the genotoxicity of environmental water samples and can be applied as the first tool for environmental health hazard identification and prediction. |
| format | Article |
| id | doaj-art-678d519230da4389aacf6b59d207e4a1 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-678d519230da4389aacf6b59d207e4a12025-02-03T05:43:38ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/391367391367Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water MonitoringCamila Gonçalves Athanásio0Daniel Prá1Alexandre Rieger2Department of Biology and Pharmacy, University of Santa Cruz do Sul, Avenue Independência 2293, 96815-900 Santa Cruz do Sul, RS, BrazilPostgraduation Course of Health Promotion, Department of Biology and Pharmacy, University of Santa Cruz do Sul, Avenue Independência 2293, 96815-900 Santa Cruz do Sul, RS, BrazilLaboratory of Biotechnology and Genetics, Department of Biology and Pharmacy, University of Santa Cruz do Sul, Avenue Independência 2293, 96815-900 Santa Cruz do Sul, RS, BrazilThe present study investigates the genotoxic, mutagenic, and cytotoxic potential of surface waters in urban streams using Allium cepa and analyzes the applicability of this assay for environmental monitoring. Water samples were collected from three streams located in the urban area of a municipality in the south of Brazil. For each stream, two samples were collected, one upstream and one downstream of the pollution discharge site. Physicochemical evaluation indicated that all samples had various degrees of environmental impact, but substantial impact was seen for the downstream samples of the Preto and Pedras streams. All samples increased the frequency of chromosome aberrations (P<0.05). The sample from Pedras downstream site also caused a decrease in mitotic index (P<0.08) and increase in micronuclei (P<0.08) frequency, indicating potential cytotoxicity and mutagenicity. The Pedras stream receives mixed industrial and urban wastewater, while the Lajeado and Preto streams receive wastewater predominantly domestic in nature, which may partially explain the difference in toxicity among the samples. Moreover, the Allium cepa seeds/seedlings were shown to be extremely sensitive in detecting the genotoxicity of environmental water samples and can be applied as the first tool for environmental health hazard identification and prediction.http://dx.doi.org/10.1155/2014/391367 |
| spellingShingle | Camila Gonçalves Athanásio Daniel Prá Alexandre Rieger Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring The Scientific World Journal |
| title | Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring |
| title_full | Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring |
| title_fullStr | Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring |
| title_full_unstemmed | Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring |
| title_short | Water Quality of Urban Streams: The Allium cepa Seeds/Seedlings Test as a Tool for Surface Water Monitoring |
| title_sort | water quality of urban streams the allium cepa seeds seedlings test as a tool for surface water monitoring |
| url | http://dx.doi.org/10.1155/2014/391367 |
| work_keys_str_mv | AT camilagoncalvesathanasio waterqualityofurbanstreamsthealliumcepaseedsseedlingstestasatoolforsurfacewatermonitoring AT danielpra waterqualityofurbanstreamsthealliumcepaseedsseedlingstestasatoolforsurfacewatermonitoring AT alexandrerieger waterqualityofurbanstreamsthealliumcepaseedsseedlingstestasatoolforsurfacewatermonitoring |