Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/43012
Título : Phosphorus and sulfur in a tropical soil and their effects on growth and selenium accumulation in Leucaena leucocephala (Lam.) de Wit
Autor: Ávila, Patrícia Andressa
Faquin, Valdemar
Ávila, Fabricio William
Kachinski, Wagner Deckij
Carvalho, Geila Santos
Guilherme, Luiz Roberto Guimarães
Palavras-chave: Polluted soils
Selênio
Phytoextraction
Selenium
Solos poluídos
Fitoextração
Publicador: Springer
Data da publicação: 2020
Referência: ÁVILA, P. A. et al. Phosphorus and sulfur in a tropical soil and their effects on growth and selenium accumulation in Leucaena leucocephala (Lam.) de Wit. Environmental Science and Pollution Research, [S. l.], 2020. DOI: https://doi.org/10.1007/s11356-020-10303-3.
Abstract: Selenium (Se) is an essential metalloid element for mammals. Nonetheless, both deficiency and excess of Se in the environment are associated with several diseases in animals and humans. Here, we investigated the interaction of Se, supplied as selenate (Se+6) and selenite (Se+4), with phosphorus (P) and sulfur (S) in a weathered tropical soil and their effects on growth and Se accumulation in Leucaena leucocephala (Lam.) de Wit. The P-Se interaction effects on L. leucocephala growth differed between the Se forms (selenate and selenite) supplied in the soil. Selenate was prejudicial to plants grown in the soil with low P dose, while selenite was harmful to plants grown in soil with high P dose. The decreasing soil S dose increased the toxic effect of Se in L. leucocephala plants. Se tissue concentration and total Se accumulation in L. leucocephala shoot were higher with selenate supply in the soil when compared with selenite. Therefore, selenite proved to be less phytoavailable in the weathered tropical soil and, at the same time, more toxic to L. leucocephala plants than selenate. Thus, it is expected that L. leucocephala plants are more efficient to phytoextract and accumulate Se as selenate than Se as selenite from weathered tropical soils, for either strategy of phytoremediation (decontamination of Se-polluted soils) or purposes of biofortification for animal feed (fertilization of Se-poor soils).
URI: https://link.springer.com/article/10.1007/s11356-020-10303-3
http://repositorio.ufla.br/jspui/handle/1/43012
Idioma: en_US
Aparece nas coleções:DCS - Artigos publicados em periódicos

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