Assessment of the genotoxicity of sediment elutriates from an aquatic ecosystem on Allium cepa: Limache stream in central Chile

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dc.contributor.authorDieterich, Alejandra
dc.contributor.authorGaete, Hernán
dc.date.accessioned2022-11-30T02:46:18Z
dc.date.available2022-11-30T02:46:18Z
dc.date.issued2021
dc.description.abstractThe aim of this study was to assess the genotoxic effects of sediment elutriates of an aquatic ecosystem. Sediment samples were taken from Limache stream, located in central Chile. The tests were carried out on sediment elutriates. Genotoxicity was determined by bioassay with Allium cepa. The percentage of germination, root growth, mitotic index, and frequency of chromosome aberrations were determined. The results show a significant increase in chromosome aberrations and decrease of the mitotic index in Allium cepa in all the sediment elutriates compared to the control. No significant differences were observed in the percentages of germination or root growth among the sediment elutriates. A negative correlation was found between the mitotic index and chromosomal aberrations. In conclusion, genotoxic variables are more sensitive than growth variables. The sediments contain chemical agents in bioavailable concentrations that produce genotoxic effects. Allium cepa test proved to be a sensitive indicator of genotoxic contaminants in sediment elutriates of the Limache stream in central Chile.en_ES
dc.facultadFacultad de Ingenieríaen_ES
dc.file.nameDieterich_Ass2021.pdf
dc.identifier.citationDieterich, A., Gaete, H. Assessment of the genotoxicity of sediment elutriates from an aquatic ecosystem on Allium cepa: Limache stream in central Chile. Environ Monit Assess 193, 243 (2021). https://doi.org/10.1007/s10661-021-09029-7en_ES
dc.identifier.doihttps://doi.org/10.1007/s10661-021-09029-7
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/7311
dc.languageen
dc.publisherSpringer
dc.sourceEnvironmental Monitoring and Assessment
dc.subjectTOXICITY · BIOASSAYSen_ES
dc.subjectRISKen_ES
dc.subjectMICRONUCLEIen_ES
dc.titleAssessment of the genotoxicity of sediment elutriates from an aquatic ecosystem on Allium cepa: Limache stream in central Chile
dc.typeArticulo
uv.departamentoEscuela de Ingenieria en Medioambiente
uv.notageneralNo disponible para descarga

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