Selenium toxicity in upland field-grown rice: Seed physiology responses and nutrient distribution using the μ-XRF technique

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorRua Monsenhor José Augusto-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorReis, André Rodrigues dos [UNESP]-
Autor(es): dc.creatorBoleta, Eduardo Henrique Marcandalli [UNESP]-
Autor(es): dc.creatorAlves, Charline Zaratin-
Autor(es): dc.creatorCotrim, Mayara Fávero-
Autor(es): dc.creatorBarbosa, Julierme Zimmer-
Autor(es): dc.creatorSilva, Vinícius Martins [UNESP]-
Autor(es): dc.creatorPorto, Rafael Lawandovski [UNESP]-
Autor(es): dc.creatorLanza, Maria Gabriela Dantas Bereta [UNESP]-
Autor(es): dc.creatorLavres, José-
Autor(es): dc.creatorGomes, Marcos Henrique Feresin-
Autor(es): dc.creatorCarvalho, Hudson Wallace Pereira de-
Data de aceite: dc.date.accessioned2022-02-22T00:24:18Z-
Data de disponibilização: dc.date.available2022-02-22T00:24:18Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ecoenv.2019.110147-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198350-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198350-
Descrição: dc.descriptionSelenium (Se) is an essential element for human and animal, although considered beneficial to higher plants. Selenium application at high concentration to plants can cause toxicity decreasing the physiological quality of seeds. This study aimed to characterize the Se toxicity on upland rice yield, seed physiology and the localization of Se in seeds using X-ray fluorescence microanalysis (μ-XRF). In the flowering stage, foliar application of Se (0, 250, 500, 1000, 1500, 2000 g ha−1) as sodium selenate was performed. A decrease in rice yield and an increase in seed Se concentrations were observed from 250 g Se ha−1. The storage proteins in the seeds showed different responses with Se application (decrease in albumin, increase in prolamin and glutelin). There was a reduction in the concentrations of total sugars and sucrose with the application of 250 and 500 g Se ha−1. The highest intensities Kα counts of Se were detected mainly in the endosperm and aleurone/pericarp. μ-XRF revealed the spatial distribution of sulfur, calcium, and potassium in the seed embryos. The seed germination decreased, and the electrical conductivity increased in response to high Se application rates showing clearly an abrupt decrease of physiological quality of rice seeds. This study provides information for a better understanding of the effects of Se toxicity on rice, revealing that in addition to the negative effects on yield, there are changes in the physiological and biochemical quality of seeds.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo State University (UNESP), Rua Domingos da Costa Lopes 780, Postal Code 17602-496-
Descrição: dc.descriptionSão Paulo State University (UNESP), Postal Code 15.385-000-
Descrição: dc.descriptionFederal University of Mato Grosso do Sul (UFMS), Rodovia MS-306 - Zona Rural, Postal Code 79560-000-
Descrição: dc.descriptionFederal Institute of Southeast Minas Gerais Rua Monsenhor José Augusto, n. 204 - Bairro São José-
Descrição: dc.descriptionUniversity of São Paulo - USP, Av. Centenário, 303, São Dimas, Postal Code 13400-970-
Descrição: dc.descriptionSão Paulo State University (UNESP), Rua Domingos da Costa Lopes 780, Postal Code 17602-496-
Descrição: dc.descriptionSão Paulo State University (UNESP), Postal Code 15.385-000-
Descrição: dc.descriptionFAPESP: 15/05942-0-
Descrição: dc.descriptionFAPESP: 15/19121-8-
Descrição: dc.descriptionFAPESP: 16/19937-0-
Descrição: dc.descriptionCNPq: 309380/2017-0-
Idioma: dc.languageen-
Relação: dc.relationEcotoxicology and Environmental Safety-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCereal-
Palavras-chave: dc.subjectFoliar fertilization-
Palavras-chave: dc.subjectGermination-
Palavras-chave: dc.subjectProtein fractions-
Palavras-chave: dc.subjectSodium selenate-
Palavras-chave: dc.subjectX-ray fluorescence spectroscopy-
Título: dc.titleSelenium toxicity in upland field-grown rice: Seed physiology responses and nutrient distribution using the μ-XRF technique-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.