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dc.creatorCastro, Bárbara M. M.-
dc.creatorSantos-Rasera, Joyce R.-
dc.creatorAlves, Dejane S.-
dc.creatorMarucci, Rosangela C.-
dc.creatorCarvalho, Geraldo A.-
dc.creatorCarvalho, Hudson W. P.-
dc.date.accessioned2022-01-24T19:00:26Z-
dc.date.available2022-01-24T19:00:26Z-
dc.date.issued2021-06-
dc.identifier.citationCASTRO, B. M. M. et al. Ingestion and effects of cerium oxide nanoparticles on Spodoptera frugiperda (Lepidoptera: Noctuidae). Environmental Pollution, Barking, v. 279, 116905, 15 jun. 2021. DOI: 10.1016/j.envpol.2021.116905.pt_BR
dc.identifier.urihttps://doi.org/10.1016/j.envpol.2021.116905pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/48987-
dc.description.abstractThe objective of this study was to evaluate the biological and nutritional characteristics of Spodoptera frugiperda (Lepidoptera: Noctuidae), an arthropod pest widely distributed in agricultural regions, after exposure to nano-CeO2 via an artificial diet and to investigate the presence of cerium in the body of this insect through X-ray fluorescence mapping. Nano-CeO2, micro-CeO2, and Ce(NO3)3 were incorporated into the diet (0.1, 1, 10, and 100 mg of Ce L−1). Cerium was detected in caterpillars fed with diets containing nano-CeO2 (1, 10 and 100 mg of Ce L−1), micro-CeO2 and Ce(NO3)3, and in feces of caterpillars from the first generation fed diets with nano-CeO2 at 100 mg of Ce L−1 as well. The results indicate that nano-CeO2 caused negative effects on S. frugiperda. After it was consumed by the caterpillars, the nano-CeO2 reduced up to 4.8% of the pupal weight and 60% of egg viability. Unlike what occurred with micro-CeO2 and Ce(NO3)3, nano-CeO2 negatively affected nutritional parameters of this insect, as consumption rate two times higher, increase of up to 80.8% of relative metabolic rate, reduction of up to 42.3% efficiency of conversion of ingested and 47.2% of digested food, and increase of up to 1.7% of metabolic cost and 8.7% of apparent digestibility. Cerium caused 6.8–16.9% pupal weight reduction in second generation specimens, even without the caterpillars having contact with the cerium via artificial diet. The results show the importance of new ecotoxicological studies with nano-CeO2 for S. frugiperda in semi-field and field conditions to confirm the toxicity.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceEnvironmental Pollutionpt_BR
dc.subjectNanomaterialspt_BR
dc.subjectFall armywormpt_BR
dc.subjectBiotransferpt_BR
dc.subjectBiological and nutricional aspectspt_BR
dc.subjectNanomateriaispt_BR
dc.subjectLagarta-do-cartuchopt_BR
dc.subjectBiotransferênciapt_BR
dc.subjectAspectos biológicos e nutricionaispt_BR
dc.titleIngestion and effects of cerium oxide nanoparticles on Spodoptera frugiperda (Lepidoptera: Noctuidae)pt_BR
dc.typeArtigopt_BR
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