Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Evaluation of the genotoxicity induced by the fungicide fenarimol in mammalian and plant cells by use of the single-cell gel electrophoresis assay.
Autores:  POLI, P.
MELLO, M. A. de
BUSCHINI, A.
CASTRO, V. L. S. S. de
RESTIVO, F. M.
ROSSI, C.
ZUCCHI, T. M. A. D.
Data:  2006-10-04
Ano:  2003
Palavras-chave:  Fungicida
Toxidez
Análise química
Eletroforese
Resumo:  Fenarimol, a systemic pyrimidine carbinol fungicide, is considered to be not genotoxic or weakly genotoxic, although the available toxicological data are controversial and incomplete. Our results obtained in vitro with leukocytes of two different rodent species (rat and mouse) show that fenarimol affects DNA, as detected by the single-cell gel electrophoresis (SCGE, Comet) assay. This fungicide is able to induce DNA damage in a dose-related manner, with significant effectiveness at 36 nM, but without significant interspecies differences. Simultaneous exposure of rat leukocytes to fenarimol (36-290nM) and a model genotoxic compound (50 ?g/ml bleomycin) produced a supra-additive cytotoxic and genotoxic effect. This supports previous findings suggesting possible co-toxic, co-mutagenic, cancer-promoting and co-carcinogenic potential of fenarimol, and modification of the effects of other xenobiotics found to be influenced by this agrotoxic chemical, with consequent different toxicological events. The potential for DNA strand breaks to act as a biomarker of genetic toxicity in plants in vivo was also considered, in view of the fact that higher plants represent reliable sensors in an ecosystem. Significant DNA breakage was observed in the nuclei of Impatiens balsamina leaves after in vivo treatment with fenarimol (145 nM, 1 h). More than 50% of the cells showed such DNA damage.
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  6441

http://www.alice.cnptia.embrapa.br/alice/handle/doc/15095

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/163846/1/Poli-Evaluation-6441.pdf
Editor:  Mutation Research, Amsterdam, v. 540, p. 57-66, 2003.
Relação:  Embrapa Meio Ambiente - Artigo em periódico indexado (ALICE)
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional