Sublethal doses of imidacloprid and pyraclostrobin impair fat body of solitary bee Tetrapedia diversipes (Klug, 1810)

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorFaculty of Agriculture and Life Sciences-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorConceição de Assis, Josimere-
Autor(es): dc.creatorEduardo da Costa Domingues, Caio-
Autor(es): dc.creatorTadei, Rafaela-
Autor(es): dc.creatorInês da Silva, Cláudia-
Autor(es): dc.creatorSoares Lima, Hellen Maria-
Autor(es): dc.creatorDecio, Pâmela-
Autor(es): dc.creatorSilva-Zacarin, Elaine C.M.-
Data de aceite: dc.date.accessioned2025-08-21T17:21:29Z-
Data de disponibilização: dc.date.available2025-08-21T17:21:29Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.envpol.2022.119140-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223697-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223697-
Descrição: dc.descriptionSolitary bees present greater species diversity than social bees. However, they are less studied than managed bees, mainly regarding the harmful effects of pesticides present in agroecosystems commonly visited by them. This study aimed to evaluate the effect of residual doses of imidacloprid and pyraclostrobin, alone and in combination, on the fat body (a multifunctional organ) of the neotropical solitary bee Tetrapedia diversipes by means of morphological and histochemical evaluation of oenocytes and trophocytes. Males and females of newly-emerged adults were submitted to bioassays of acute topical exposure. Experimental groups were essayed: control (CTR), solvent control (ACT), imidacloprid (IMI, 0.0028 ng/μL), pyraclostrobin (PYR, 2.7 ng/μL) and imidacloprid + pyraclostrobin (I + P). The data demonstrated that the residual doses applied in T. diversipes adults are sublethal at 96 h. Both oenocytes and trophocytes cells responded to topical exposure to the pesticides, showing morphological changes. In the IMI group, the bee oenocytes showed the greatest proportion of vacuolization and altered nuclei. The pyraclostrobin exposure increased the intensity of PAS-positive labeling (glycogen) in trophocytes. This increase was also observed in the I + P group. Changes in energy reserve (glycogen) of trophocytes indicate a possible mobilization impairment of this neutral polysaccharide to the hemolymph, which can compromise the fitness of exposed individuals. Also, changes in oenocytes can compromise the detoxification function performed by the fat body. This is the first study to show sublethal effects in neotropical solitary bees and highlight the importance of studies with native bees.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFederal University of São Carlos UFSCar Postgraduate Program in Biotechnology and Environmental Monitoring, São Paulo State-
Descrição: dc.descriptionUniversity of Maribor Faculty of Agriculture and Life Sciences-
Descrição: dc.descriptionSão Paulo State University UNESP Postgraduate Program in Biological Sciences, São Paulo State-
Descrição: dc.descriptionFederal University of São Carlos UFSCar Department of Biology Laboratory of Ecotoxicology and Environmental Integrity (LEIA), São Paulo State-
Descrição: dc.descriptionFederal University of São Carlos UFSCar Department of Environmental Sciences, São Paulo State-
Descrição: dc.descriptionSão Paulo State University UNESP Postgraduate Program in Biological Sciences, São Paulo State-
Descrição: dc.descriptionFAPESP: 2016/15743-7-
Descrição: dc.descriptionFAPESP: 2017/21097-3-
Descrição: dc.descriptionFAPESP: 2019/27863-5-
Descrição: dc.descriptionFAPESP: 2020/12639-0-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Pollution-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectNeonicotinoid-
Palavras-chave: dc.subjectNeotropical bee-
Palavras-chave: dc.subjectOenocytes-
Palavras-chave: dc.subjectStrobilurin-
Palavras-chave: dc.subjectTrophocytes-
Título: dc.titleSublethal doses of imidacloprid and pyraclostrobin impair fat body of solitary bee Tetrapedia diversipes (Klug, 1810)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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