Chromate and phosphate inhibited each other's uptake and translocation in arsenic hyperaccumulator Pteris vittata L.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorOliveira, Letúzia Maria de-
Autor(es): dc.creatorLessl, Jason Thomas-
Autor(es): dc.creatorGress, Julia Ky-
Autor(es): dc.creatorTisarum, Rujira-
Autor(es): dc.creatorGuilherme, Luiz Roberto Guimarães-
Autor(es): dc.creatorMa, Lena Qiying-
Data de aceite: dc.date.accessioned2026-02-09T11:35:20Z-
Data de disponibilização: dc.date.available2026-02-09T11:35:20Z-
Data de envio: dc.date.issued2020-08-04-
Data de envio: dc.date.issued2020-08-04-
Data de envio: dc.date.issued2015-02-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/42204-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.envpol.2014.11.009-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1142996-
Descrição: dc.descriptionWe investigated the effects of chromate (CrVI) and phosphate (P) on their uptake and translocation in As-hyperaccumulator Pteris vittata (PV). Plants were exposed to 1) 0.10 mM CrVI and 0, 0.25, 1.25, or 2.50 mM P or 2) 0.25 mM P and 0, 0.50, 2.5 or 5.0 mM CrVI for 24 h in hydroponics. PV accumulated 2919 mg/kg Cr in the roots at CrVI0.10, and 5100 and 3500 mg/kg P in the fronds and roots at P0.25. When co-present, CrVI and P inhibited each other's uptake in PV. Increasing P concentrations reduced Cr root concentrations by 62–82% whereas increasing CrVI concentrations reduced frond P concentrations by 52–59% but increased root P concentrations by 11–15%. Chromate reduced P transport, with more P being accumulated in PV roots. Though CrVI was supplied, 64−78% and 92−93% CrIII were in PV fronds and roots. Based on X-ray diffraction, Cr2O3 was detected in the roots confirming CrVI reduction to CrIII by PV. In short, CrVI and P inhibited each other in uptake and translocation by PV, and CrVI reduction to CrIII in PV roots served as its detoxification mechanism. The finding helps to understand the interactions of P and Cr during their uptake in PV.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceEnvironmental Pollution-
Palavras-chave: dc.subjectChromium-
Palavras-chave: dc.subjectPteris vittata-
Palavras-chave: dc.subjectUptake-
Palavras-chave: dc.subjectTranslocation-
Palavras-chave: dc.subjectSpeciation-
Palavras-chave: dc.subjectSamambaia chinesa-
Palavras-chave: dc.subjectCrómio-
Palavras-chave: dc.subjectArsênio - Hiperacumulação-
Título: dc.titleChromate and phosphate inhibited each other's uptake and translocation in arsenic hyperaccumulator Pteris vittata L.-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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