Fluoride effects on leaves of aquatic Salvinia auriculata

Detalhes bibliográficos
Autor(a) principal: Peixoto, Paulo Henrique Pereira
Data de Publicação: 2005
Outros Autores: Pimenta, Daniel Sales, Antunes, Flávia
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/7019
Resumo: The objective of this work was to evaluate the effects of fluoride on leaves of aquatic Salvinia auriculata Aubl., to supply subsidies for the use of this species as an environmental pollution bioindicator. The plants were cultivated under controlled conditions in pots containing nutritive solutions, and were submitted to simulated rain containing KF, in concentrations of 0, 13, 26 and 39 mM, in the morning, during five consecutive days. Results evidenced the occurrence of morphological and anatomical damages involving trichome and adaxial surface of the leaf necrosis. Alterations in the activity of peroxidase, polyphenoloxidase, superoxide dismutase, and catalase enzymes indicated the occurrence of oxidative damages in response to fluoride, although lipid peroxidation tests showed negative results. Alterations in pigment concentration also pointed to the occurrence of oxidative stress, caused by fluoride present in the simulated rain. The morphological, anatomical, enzymatic, and pigment composition alterations in S. auriculata can be used in atmospheric pollution biomonitoring, because they are easy to detect through simple methodologies.
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spelling Fluoride effects on leaves of aquatic Salvinia auriculataEfeitos do flúor em folhas de plantas aquáticas de Salvinia auriculataoxidative stress; bioindicators; biomonitoringestresse oxidativo; bioindicadores; biomonitoramento The objective of this work was to evaluate the effects of fluoride on leaves of aquatic Salvinia auriculata Aubl., to supply subsidies for the use of this species as an environmental pollution bioindicator. The plants were cultivated under controlled conditions in pots containing nutritive solutions, and were submitted to simulated rain containing KF, in concentrations of 0, 13, 26 and 39 mM, in the morning, during five consecutive days. Results evidenced the occurrence of morphological and anatomical damages involving trichome and adaxial surface of the leaf necrosis. Alterations in the activity of peroxidase, polyphenoloxidase, superoxide dismutase, and catalase enzymes indicated the occurrence of oxidative damages in response to fluoride, although lipid peroxidation tests showed negative results. Alterations in pigment concentration also pointed to the occurrence of oxidative stress, caused by fluoride present in the simulated rain. The morphological, anatomical, enzymatic, and pigment composition alterations in S. auriculata can be used in atmospheric pollution biomonitoring, because they are easy to detect through simple methodologies.O objetivo deste trabalho foi avaliar os efeitos do flúor em folhas de plantas aquáticas de Salvinia auriculata Aubl., visando fornecer subsídios para a utilização dessa espécie, no monitoramento da poluição ambiental, causada por esse elemento tóxico. As plantas foram cultivadas sob condições controladas, em vasos com solução nutritiva, e submetidas à aplicação de chuva simulada contendo KF, nas concentrações de 0, 13, 26 e 39 mM, pela manhã, durante cinco dias sucessivos. Os resultados evidenciaram a ocorrência de alterações morfológicas, com o desenvolvimento de lesões nos tricomas e na porção adaxial do limbo foliar. As alterações nas atividades das enzimas peroxidase, polifenol oxidase, superóxido dismutase e catalase indicaram a ocorrência de danos oxidativos em resposta ao flúor, embora testes relacionados à peroxidação dos lipídios tenham apresentado resultados negativos. As alterações na concentração de pigmentos também direcionam para a ocorrência de estresse oxidativo, causado pelo flúor, presente na chuva simulada. Como as alterações morfológicas, enzimáticas e na composição de pigmentos, de plantas de S. auriculata, são passíveis de detecção por métodos relativamente simples, elas podem ser empregadas no biomonitoramento da poluição atmosférica, causada por esse elemento altamente reativo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPeixoto, Paulo Henrique PereiraPimenta, Daniel SalesAntunes, Flávia2005-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7019Pesquisa Agropecuaria Brasileira; v.40, n.8, ago. 2005; 727-732Pesquisa Agropecuária Brasileira; v.40, n.8, ago. 2005; 727-7321678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7019/4067info:eu-repo/semantics/openAccess2010-09-02T11:27:04Zoai:ojs.seer.sct.embrapa.br:article/7019Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-09-02T11:27:04Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Fluoride effects on leaves of aquatic Salvinia auriculata
Efeitos do flúor em folhas de plantas aquáticas de Salvinia auriculata
title Fluoride effects on leaves of aquatic Salvinia auriculata
spellingShingle Fluoride effects on leaves of aquatic Salvinia auriculata
Peixoto, Paulo Henrique Pereira
oxidative stress; bioindicators; biomonitoring
estresse oxidativo; bioindicadores; biomonitoramento
title_short Fluoride effects on leaves of aquatic Salvinia auriculata
title_full Fluoride effects on leaves of aquatic Salvinia auriculata
title_fullStr Fluoride effects on leaves of aquatic Salvinia auriculata
title_full_unstemmed Fluoride effects on leaves of aquatic Salvinia auriculata
title_sort Fluoride effects on leaves of aquatic Salvinia auriculata
author Peixoto, Paulo Henrique Pereira
author_facet Peixoto, Paulo Henrique Pereira
Pimenta, Daniel Sales
Antunes, Flávia
author_role author
author2 Pimenta, Daniel Sales
Antunes, Flávia
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Peixoto, Paulo Henrique Pereira
Pimenta, Daniel Sales
Antunes, Flávia
dc.subject.por.fl_str_mv oxidative stress; bioindicators; biomonitoring
estresse oxidativo; bioindicadores; biomonitoramento
topic oxidative stress; bioindicators; biomonitoring
estresse oxidativo; bioindicadores; biomonitoramento
description The objective of this work was to evaluate the effects of fluoride on leaves of aquatic Salvinia auriculata Aubl., to supply subsidies for the use of this species as an environmental pollution bioindicator. The plants were cultivated under controlled conditions in pots containing nutritive solutions, and were submitted to simulated rain containing KF, in concentrations of 0, 13, 26 and 39 mM, in the morning, during five consecutive days. Results evidenced the occurrence of morphological and anatomical damages involving trichome and adaxial surface of the leaf necrosis. Alterations in the activity of peroxidase, polyphenoloxidase, superoxide dismutase, and catalase enzymes indicated the occurrence of oxidative damages in response to fluoride, although lipid peroxidation tests showed negative results. Alterations in pigment concentration also pointed to the occurrence of oxidative stress, caused by fluoride present in the simulated rain. The morphological, anatomical, enzymatic, and pigment composition alterations in S. auriculata can be used in atmospheric pollution biomonitoring, because they are easy to detect through simple methodologies.
publishDate 2005
dc.date.none.fl_str_mv 2005-08-01
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/7019
url https://seer.sct.embrapa.br/index.php/pab/article/view/7019
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/7019/4067
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.40, n.8, ago. 2005; 727-732
Pesquisa Agropecuária Brasileira; v.40, n.8, ago. 2005; 727-732
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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