Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings

Detalhes bibliográficos
Autor(a) principal: Accioly, Adriana Maria de Aguiar
Data de Publicação: 2010
Outros Autores: Soares, Cláudio Roberto Fonsêca Sousa, Siqueira, José Oswaldo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/1445
Resumo: The objective of this study was to evaluate the effect of calcium silicate to reduce heavy metal toxicity in Eucalyptus camaldulensis seedlings. Five doses of calcium silicate (0, 1.6, 3.2, 4.8, and 6.4 g kg-1) were used in soils with increasing levels of contamination. The experiment was carried out in pots with 1.5 kg of soil, with one plant each, in a 4x5 factorial array (four levels of contamination x five silicate doses). Calcium silicate minimized heavy metal toxicity to E. camaldulensis, delayed the onset of toxicity symptoms, and decreased zinc and cadmium shoot concentrations. However, calcium silicate did not completely overcome the depressive effect upon plant growth in soils with high metal concentrations. Calcium silicate effects increased with increasing doses and were more evident in highly contaminated soils. The beneficial effects of calcium silicate on metal toxicity were highly related to the decrease in zinc translocation to the eucalyptus shoots.
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spelling Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlingsSilicato de cálcio como amenizante da toxidez de metais pesados em mudas de eucaliptoEucalyptus camaldulensis; cadmium; phytostabilization; phytotoxicity; soil pollution; zincEucalyptus camaldulensis; cádmio; fitoestabilização; fitotoxidez; poluição do solo; zincoThe objective of this study was to evaluate the effect of calcium silicate to reduce heavy metal toxicity in Eucalyptus camaldulensis seedlings. Five doses of calcium silicate (0, 1.6, 3.2, 4.8, and 6.4 g kg-1) were used in soils with increasing levels of contamination. The experiment was carried out in pots with 1.5 kg of soil, with one plant each, in a 4x5 factorial array (four levels of contamination x five silicate doses). Calcium silicate minimized heavy metal toxicity to E. camaldulensis, delayed the onset of toxicity symptoms, and decreased zinc and cadmium shoot concentrations. However, calcium silicate did not completely overcome the depressive effect upon plant growth in soils with high metal concentrations. Calcium silicate effects increased with increasing doses and were more evident in highly contaminated soils. The beneficial effects of calcium silicate on metal toxicity were highly related to the decrease in zinc translocation to the eucalyptus shoots.O objetivo deste trabalho foi avaliar o efeito do silicato de cálcio na redução da toxidez de metais pesados no solo para Eucalyptus camaldulensis. Foram utilizadas cinco doses de silicato de cálcio (0, 1,6, 3,2, 4,8 e 6,4 g kg-1), em solos com diferentes graus de contaminação. O experimento foi conduzido em vasos com 1,5 kg de solo, com uma muda por vaso, em esquema fatorial 4x5 (quatro graus de contaminação x cinco doses de silicato). O silicato de cálcio reduziu a toxidez de metais pesados em E. camaldulensis, retardou o aparecimento dos sintomas de toxidez e diminuiu os teores de zinco e cádmio na parte aérea das plantas. Entretanto, não evitou totalmente a depressão no crescimento, nos solos com contaminação elevada. O efeito amenizante do silicato foi crescente com o aumento das doses e mais evidente nos solos com contaminação elevada. O efeito benéfico do silicato de cálcio está relacionado à redução da transferência do zinco para a parte aérea do eucalipto.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFapemigCompanhia Mineira de MetaisAccioly, Adriana Maria de AguiarSoares, Cláudio Roberto Fonsêca SousaSiqueira, José Oswaldo2010-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/1445Pesquisa Agropecuaria Brasileira; v.44, n.2, fev. 2009; 180-188Pesquisa Agropecuária Brasileira; v.44, n.2, fev. 2009; 180-1881678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/1445/5663info:eu-repo/semantics/openAccess2014-11-21T16:48:23Zoai:ojs.seer.sct.embrapa.br:article/1445Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-21T16:48:23Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
Silicato de cálcio como amenizante da toxidez de metais pesados em mudas de eucalipto
title Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
spellingShingle Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
Accioly, Adriana Maria de Aguiar
Eucalyptus camaldulensis; cadmium; phytostabilization; phytotoxicity; soil pollution; zinc
Eucalyptus camaldulensis; cádmio; fitoestabilização; fitotoxidez; poluição do solo; zinco
title_short Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
title_full Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
title_fullStr Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
title_full_unstemmed Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
title_sort Calcium silicate to reduce heavy metal toxicity in eucalyptus seedlings
author Accioly, Adriana Maria de Aguiar
author_facet Accioly, Adriana Maria de Aguiar
Soares, Cláudio Roberto Fonsêca Sousa
Siqueira, José Oswaldo
author_role author
author2 Soares, Cláudio Roberto Fonsêca Sousa
Siqueira, José Oswaldo
author2_role author
author
dc.contributor.none.fl_str_mv
Fapemig
Companhia Mineira de Metais
dc.contributor.author.fl_str_mv Accioly, Adriana Maria de Aguiar
Soares, Cláudio Roberto Fonsêca Sousa
Siqueira, José Oswaldo
dc.subject.por.fl_str_mv Eucalyptus camaldulensis; cadmium; phytostabilization; phytotoxicity; soil pollution; zinc
Eucalyptus camaldulensis; cádmio; fitoestabilização; fitotoxidez; poluição do solo; zinco
topic Eucalyptus camaldulensis; cadmium; phytostabilization; phytotoxicity; soil pollution; zinc
Eucalyptus camaldulensis; cádmio; fitoestabilização; fitotoxidez; poluição do solo; zinco
description The objective of this study was to evaluate the effect of calcium silicate to reduce heavy metal toxicity in Eucalyptus camaldulensis seedlings. Five doses of calcium silicate (0, 1.6, 3.2, 4.8, and 6.4 g kg-1) were used in soils with increasing levels of contamination. The experiment was carried out in pots with 1.5 kg of soil, with one plant each, in a 4x5 factorial array (four levels of contamination x five silicate doses). Calcium silicate minimized heavy metal toxicity to E. camaldulensis, delayed the onset of toxicity symptoms, and decreased zinc and cadmium shoot concentrations. However, calcium silicate did not completely overcome the depressive effect upon plant growth in soils with high metal concentrations. Calcium silicate effects increased with increasing doses and were more evident in highly contaminated soils. The beneficial effects of calcium silicate on metal toxicity were highly related to the decrease in zinc translocation to the eucalyptus shoots.
publishDate 2010
dc.date.none.fl_str_mv 2010-11-09
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/1445
url https://seer.sct.embrapa.br/index.php/pab/article/view/1445
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/1445/5663
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.44, n.2, fev. 2009; 180-188
Pesquisa Agropecuária Brasileira; v.44, n.2, fev. 2009; 180-188
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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