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Effects of the interaction between the thiametoxam insecticide and picoxystrobin fungicide on larvae and adult of africanized Apis mellifera

Grant number: 14/04697-9
Support type:Scholarships in Brazil - Master
Effective date (Start): August 01, 2014
Effective date (End): February 29, 2016
Field of knowledge:Biological Sciences - Zoology
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Elaine Cristina Mathias da Silva Zacarin
Grantee:Caio Eduardo da Costa Domingues
Home Institution: Centro de Ciências e Tecnologias para a Sustentabilidade (CCTS). Universidade Federal de São Carlos (UFSCAR). Sorocaba , SP, Brazil


The Apis mellifera honey bee is responsible for the pollination of several kinds of agriculture fields in Brazil. However, the pesticide misuse in the monocultures that is associated to the habitat fragmentation and to pathogens is causing the population decline of bees around the world. The present study aims to evaluate the biological effects of the interaction between the thiametoxam insecticide and picoxystrobin fungicide in larvae and adult of africanized Apis mellifera, by means of chronic exposure to realistic concentrations of both pesticides, as well as to analyze the cellular biomarkers of oxidative stress on the fat body from larvae and worker adult of A. mellifera submitted to bioassays. The selected organ for immuno-histochemical analyses, in order to detect cellular biomarkers, is the fat body because this organ has also the function in xenobiotic metabolism. The information that will be get in the present study, in practice level, might subside future programs of bee's contamination monitoring in the field, using the cellular biomarkers in individuals that could be collected from the apiaries located around the crops. (AU)

Articles published in Agência FAPESP about the scholarship:
"Heart" cells may mask the effects of agrochemicals in bumblebees 

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOMINGUES, CAIO E. C.; ABDALLA, FABIO CAMARGO; BALSAMO, PAULO JOSE; PEREIRA, BEATRIZ V. R.; HAUSEN, MOEMA DE ALENCAR; COSTA, MONICA JONES; SILVA-ZACARIN, ELAINE C. M. Thiamethoxam and picoxystrobin reduce the survival and overload the hepato-nephrocitic system of the Africanized honeybee. Chemosphere, v. 186, p. 994-1005, NOV 2017. Web of Science Citations: 7.
ABDALLA, FABIO CAMARGO; DA COSTA DOMINGUES, CAIO EDUARDO. Hepato-Nephrocitic System: A Novel Model of Biomarkers for Analysis of the Ecology of Stress in Environmental Biomonitoring. PLoS One, v. 10, n. 7 JUL 21 2015. Web of Science Citations: 2.
ABDALLA, FABIO C.; SAMPAIO, GUILHERME; PEDROSA, MARINA; SIPRIANO, THAMIRIS P.; DOMINGUES, CAIO EDUARDO C.; SILVA-ZACARIN, ELAINE CRISTINA M.; DE CAMARGO, DAIANE A. Larval development of Physocephala (Diptera, Conopidae) in the bumble bee Bombus morio (Hymenoptera, Apidae). Revista Brasileira de Entomologia, v. 58, n. 4, p. 343-348, OCT-DEC 2014. Web of Science Citations: 5.

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