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dc.creatorLima, Maria Gabriela Franco-
dc.creatorRocha, Laiane Corsini-
dc.creatorSilveira, Graciele Lurdes-
dc.creatorAlvarenga, Ingrid Fernanda Santana-
dc.creatorAndrade-Vieira, Larissa Fonseca-
dc.identifier.citationLIMA, M. G. F. et al. Nucleolar alterations are reliable parameters to determine the cytogenotoxicity of environmental pollutants. Ecotoxicology and Environmental Safety, [S.l.], v. 174, p. 630-636, June 2019.pt_BR
dc.description.abstractPollution generated by deposition of industrial activity waste in the environment without due care can lead to serious environmental consequences. Bioassays in higher plants are means of understanding the cytogenotoxic effects of these substances. In the present work, Allium cepa L. was used as a model species to assess nucleolar changes induced by environmental pollutants. The substances used were Methyl Methane Sulfonate (MMS), cadmium (Cd), Spent Potliner (SPL) and the herbicide Atrazine. Water was used as a negative control. The silver-stained nucleolar organizer region (AgNOR) assay was used making it possible to evaluate how nucleolar parameters (number of nucleoli per nucleus and nucleoli area) behave when facing stress caused by such pollutants. The results obtained showed a variation in the observed parameters: an increase in the number of nucleoli in the treated cells and tendency to a reduction in nucleolar area, indicating that the tested pollutants may have impaired nucleolar activity. In addition, it was possible to establish a relationship between the behavior of the nucleolus with other changes as plantlet growth, cell proliferation, and DNA damage.pt_BR
dc.sourceEcotoxicology and Environmental Safetypt_BR
dc.subjectAllium cepapt_BR
dc.subjectSpent potlinerpt_BR
dc.subjectMethyl methanesulfonatept_BR
dc.titleNucleolar alterations are reliable parameters to determine the cytogenotoxicity of environmental pollutantspt_BR
Appears in Collections:DBI - Artigos publicados em periódicos

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