Journal
CHEMOSPHERE
Volume 120, Issue -, Pages 438-442Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2014.08.022
Keywords
Pesticides; Micronucleus; Chromosome aberrations
Categories
Funding
- AUIP (Asociacion Universitaria Iberoamericana de Postgrado)
- CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)
- FUNDUNESP (Fundacao para o Desenvolvimento da UNESP)
- FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo) [process 2012/50197-2]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [12/50197-2] Funding Source: FAPESP
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The indiscriminate use of pesticides has become a serious environmental concern. Of them, imidacloprid (IMI) is one of the most widely used worldwide. In 2010 in Brazil, 1.934 tonnes of IMI were sold and mainly used for sugarcane crops. Several studies have examined the toxicity of IMI as well as its possible ecological effects. However, few studies have examined its toxicity at the genetic level. This is one of the biggest challenges for the scientific community, which is concerned about the impacts of these contaminants on the environment and human health. In this study, we evaluated the effects of IMI above the genetic material in Allium cepa and Tradescantia pallida following exposure to different concentrations of this insecticide. The results demonstrated that the concentrations tested induced chromosomal alterations and increased the frequency of micronuclei. Therefore, IMI in these concentrations was genotoxic to the tested organisms. These factors should be taken into account when applying this pesticide. Published by Elsevier Ltd.
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