Pyriproxyfen exposure compromises cocoon spinning and damages the Malpighian tubules of the nontarget predator Ceraeochrysa claveri (Neuroptera: Chrysopidae)

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Maringá (UEM)-
Autor(es): dc.creatorScudeler, Elton Luiz-
Autor(es): dc.creatorBarroso, Geovanny-
Autor(es): dc.creatorDaquila, Bruno Vinicius-
Autor(es): dc.creatorde Carvalho, Shelly Favorito-
Autor(es): dc.creatorConte, Helio-
Autor(es): dc.creatordos Santos, Daniela Carvalho-
Data de aceite: dc.date.accessioned2025-08-21T22:48:18Z-
Data de disponibilização: dc.date.available2025-08-21T22:48:18Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.envpol.2024.125255-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/304164-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/304164-
Descrição: dc.descriptionPyriproxyfen has been extensively employed in the Neotropical region for agricultural pest management and insect vectors. However, measuring the sublethal and indirect effects of this active ingredient on nontarget organisms, such as lacewings, is important. Using morphological tools on target organs, we can evaluate these effects and use them as biomarkers for future ecotoxicological studies. Here, we investigated the effects of pyriproxyfen exposure on cocoon spinning and Malpighian tubules in Ceraeochrysa claveri adults. For this purpose, first-instar C. claveri larvae were orally exposed to Diatraea saccharalis egg clusters treated with pyriproxyfen in a solution of 50 or 100 mg a.i. L−1 throughout the larval stage. Insecticide exposure decreases predator survival, mainly in the prepupal and pupal stages, along with changes in the internal and external surfaces and thickness of the cocoon wall. Histopathological and ultrastructural injuries, including cytoplasmic vacuolization, loss of microvilli and a reduction in neutral glycoconjugates, were observed in Malphigian tubule cells of adults (≤24 h old). These changes indicate toxicological effects on Malpighian tubules that in lacewing involve cocoon spinning during metamorphosis and, in the adult stage, act in physiological processes of excretion and osmoregulation. Furthermore, it can affect the efficiency of the cocoon in protecting the specimen during metamorphosis against natural enemies and environmental factors. This organ has demonstrated its applicability as a biomarker for assessing the multisystemic effects of insecticides, thereby assisting in future risk assessments aimed at conserving nontargeted specimens.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of General and Applied Biology Institute of Biosciences São Paulo State University (UNESP), Rio Claro-
Descrição: dc.descriptionLaboratory of Biological Control and Bioprospection of Insects Department of Biotechnology Genetics and Cell Biology State University of Maringá (UEM), Paraná-
Descrição: dc.descriptionLaboratory of Insects Department of Structural and Functional Biology Institute of Biosciences of Botucatu São Paulo State University (UNESP), Botucatu-
Descrição: dc.descriptionResearch Center “Electron Microscopy Center” Institute of Biosciences of Botucatu São Paulo State University (UNESP), Botucatu-
Descrição: dc.descriptionDepartment of General and Applied Biology Institute of Biosciences São Paulo State University (UNESP), Rio Claro-
Descrição: dc.descriptionLaboratory of Insects Department of Structural and Functional Biology Institute of Biosciences of Botucatu São Paulo State University (UNESP), Botucatu-
Descrição: dc.descriptionResearch Center “Electron Microscopy Center” Institute of Biosciences of Botucatu São Paulo State University (UNESP), Botucatu-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Pollution-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiomarker-
Palavras-chave: dc.subjectCytotoxicity-
Palavras-chave: dc.subjectInsect-
Palavras-chave: dc.subjectLacewings-
Palavras-chave: dc.subjectMorphology-
Palavras-chave: dc.subjectUltrastructure-
Título: dc.titlePyriproxyfen exposure compromises cocoon spinning and damages the Malpighian tubules of the nontarget predator Ceraeochrysa claveri (Neuroptera: Chrysopidae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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