Effects of ZnWO4 nanoparticles on growth, photosynthesis, and biochemical parameters of the green microalga Raphidocelis subcapitata

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorEscola Tècnica Superior d'Enginyeria Química-
Autor(es): dc.contributorUniversity Jaume I (UJI)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Federal de Alfenas (UNIFAL-MG)-
Autor(es): dc.creatorGebara, Renan Castelhano-
Autor(es): dc.creatorAbreu, Cínthia Bruno de-
Autor(es): dc.creatorRocha, Giseli Swerts-
Autor(es): dc.creatorMansano, Adrislaine da Silva-
Autor(es): dc.creatorAssis, Marcelo-
Autor(es): dc.creatorMoreira, Ailton José-
Autor(es): dc.creatorSantos, Mykaelli Andrade-
Autor(es): dc.creatorPereira, Thalles Maranesi-
Autor(es): dc.creatorVirtuoso, Luciano Sindra-
Autor(es): dc.creatorMelão, Maria da Graça Gama-
Autor(es): dc.creatorLongo, Elson-
Data de aceite: dc.date.accessioned2025-08-21T15:42:43Z-
Data de disponibilização: dc.date.available2025-08-21T15:42:43Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2024.141590-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299430-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299430-
Descrição: dc.descriptionNanoparticles have applications in many sectors in the society. ZnWO4 nanoparticles (ZnWO4-NPs) have potential in the fabrication of sensors, lasers, and batteries, and in environmental remediation. Thus, these NPs may reach aquatic ecosystems. However, we still do not know their effects on aquatic biota and, to our knowledge, this is the first study that evaluates the toxicity of ZnWO4-NPs in a eukaryotic organism. We evaluated the toxicity of ZnWO4-NPs on the green microalga Raphidocelis subcapitata for 96 h, in terms of growth, cell parameters, photosynthesis, and biochemical analysis. Results show that most of Zn was presented in its particulate form, with low amounts of Zn2+, resulting in toxicity at higher levels. The growth was affected from 8.4 mg L−1, with 96h–IC50 of 23.34 mg L−1. The chlorophyll a (Chl a) content increased at 30.2 mg L−1, while the fluorescence of Chl a (FL3-H) decreased at 15.2 mg L−1. We observed increased ROS levels at 44.4 mg L−1. Regarding photosynthesis, the NPs affected the oxygen evolving complex (OEC) and the efficiency of the photosystem II at 22.9 mg L−1. At 44.4 mg L−1 the qP decreased, indicating closure of reaction centers, probably affecting carbon assimilation, which explains the decay of carbohydrates. There was a decrease of qN (non-regulated energy dissipation, not used in photosynthesis), NPQ (regulated energy dissipation) and Y(NPQ) (regulated energy dissipation via heat), indicating damage to the photoprotection system; and an increase in Y(NO), which is the non-regulated energy dissipation via heat and fluorescence. The results showed that ZnWO4-NPs can affect the growth and physiological and biochemical parameters of the chlorophycean R. subcapitata. Microalgae are the base of aquatic food chains, the toxicity of emerging contaminants on microalgae can affect entire ecosystems. Therefore, our study can provide some help for better protection of aquatic ecosystems.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFinanciadora de Estudos e Projetos-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCenter for the Development of Functional Materials (CDMF) Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, SP-
Descrição: dc.descriptionUniversitat Rovira i Virgili Escola Tècnica Superior d'Enginyeria Química Departament d'Enginyeria Química, Av. Països Catalans, 26-
Descrição: dc.descriptionDepartment of Hydrobiology (DHb) Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, SP-
Descrição: dc.descriptionDepartment of Analytical and Physical Chemistry University Jaume I (UJI), Castelló-
Descrição: dc.descriptionChemistry Institute of Araraquara Universidade Estadual Paulista (UNESP), SP-
Descrição: dc.descriptionEmbrapa Pecuária Sudeste, P.O. Box 339, SP-
Descrição: dc.descriptionChemistry Institute Universidade Federal de Alfenas (UNIFAL-MG), Gabriel Monteiro da Silva, 700, Centro, MG-
Descrição: dc.descriptionChemistry Institute of Araraquara Universidade Estadual Paulista (UNESP), SP-
Descrição: dc.descriptionFAPESP: 2013/07296-2-
Descrição: dc.descriptionFAPESP: 2014/14139-3 2018/07988-5-
Descrição: dc.descriptionFAPESP: 2022/06219-3-
Idioma: dc.languageen-
Relação: dc.relationChemosphere-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectChlorophyceae-
Palavras-chave: dc.subjectEcotoxicology-
Palavras-chave: dc.subjectPhysiology-
Palavras-chave: dc.subjectQuenching-
Palavras-chave: dc.subjectToxicity-
Palavras-chave: dc.subjectZnWO4 nanoparticles-
Título: dc.titleEffects of ZnWO4 nanoparticles on growth, photosynthesis, and biochemical parameters of the green microalga Raphidocelis subcapitata-
Tipo de arquivo: dc.typelivro digital-
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