Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.

Detalhes bibliográficos
Autor(a) principal: da Silva, Tuane Araldi
Data de Publicação: 2017
Outros Autores: Delias, Dominique, Pedó, Tiago, de Abreu, Everton Sozo, Villela, Francisco Amaral, Aumonde, Tiago Zanatta
Tipo de documento: Artigo
Idioma: por
Título da fonte: Iheringia. Série Botânica
Texto Completo: https://isb.emnuvens.com.br/iheringia/article/view/582
Resumo: This study evaluated the infl uence of C. bonariensis extract concentrations on the physiological performance of seeds and the antioxidative metabolism of lettuce seedlings. The treatments were concentrations of 0; 2; 4; 6 and 8 % of the aqueous extract of leaves. The germination, speed index, electrical conductivity, seedling emergence, total dry mass of seedlings, hydrogen peroxide content, lipid peroxidation, enzyme activity, superoxide dismutase, catalase and ascorbate peroxidase were evaluated. C. bonariensis extract has toxic eff ects on seeds and lettuce seedlings. The higher extract concentrations (6 and 8 %) inhibited the germination and early growth of seedlings more. Increasing the concentration of the extract resulted in an increase of electrical conductivity in seeds and increased the levels of hydrogen peroxide, lipid peroxidation, superoxide dismutase, catalase and ascorbate peroxidase.
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spelling Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.Fitotoxicidade do extrato de Conyza bonariensis (L.) Cronquist no desempenho fisiológico de sementes e plântulas de alfaceEnzymesHorseweedLactuca sativaToxicity.BuvaEnzimasLactuca sativaToxicidade.This study evaluated the infl uence of C. bonariensis extract concentrations on the physiological performance of seeds and the antioxidative metabolism of lettuce seedlings. The treatments were concentrations of 0; 2; 4; 6 and 8 % of the aqueous extract of leaves. The germination, speed index, electrical conductivity, seedling emergence, total dry mass of seedlings, hydrogen peroxide content, lipid peroxidation, enzyme activity, superoxide dismutase, catalase and ascorbate peroxidase were evaluated. C. bonariensis extract has toxic eff ects on seeds and lettuce seedlings. The higher extract concentrations (6 and 8 %) inhibited the germination and early growth of seedlings more. Increasing the concentration of the extract resulted in an increase of electrical conductivity in seeds and increased the levels of hydrogen peroxide, lipid peroxidation, superoxide dismutase, catalase and ascorbate peroxidase.Este trabalho objetivou avaliar a infl uência de concentrações do extrato de C. bonariensis sobre o desempenho fi siológico de sementes e no metabolismo antioxidativo de plântulas de alface. Os tratamentos foram as concentrações de 0; 2; 4; 6 e 8 % do extrato aquoso de folhas. Foram avaliados a germinação, primeira contagem de germinação, índice de velocidade de germinação, condutividade elétrica, emergência de plântulas, massa seca total de plântulas, conteúdo de peróxido de hidrogênio, peroxidação de lipídeos, atividade das enzimas, superóxido dismutase, catalase e ascorbato peroxidase. O extrato de C. bonariensis possui efeito tóxico sobre sementes e plântulas de alface. As maiores concentrações do extrato (6 e 8 %) proporcionam maior inibição da germinação e do crescimento inicial de plântulas. O aumento da concentração do extrato resulta na elevação da condutividade elétrica em sementes, dos níveis de peróxido de hidrogênio, da peroxidação lipídica e das enzimas superóxido-dismutase, catalase e ascorbato-peroxidaseIheringia. Série Botânica.Iheringia, Série Botânica.2017-01-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://isb.emnuvens.com.br/iheringia/article/view/582Iheringia. Série Botânica.; Vol. 71 No. 3 (2016); 213-221Iheringia, Série Botânica.; v. 71 n. 3 (2016); 213-2212446-82310073-4705reponame:Iheringia. Série Botânicainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RSporhttps://isb.emnuvens.com.br/iheringia/article/view/582/310Copyright (c) 2017 Iheringia. Série Botânica.info:eu-repo/semantics/openAccessda Silva, Tuane AraldiDelias, DominiquePedó, Tiagode Abreu, Everton SozoVillela, Francisco AmaralAumonde, Tiago Zanatta2017-01-27T17:52:05Zoai:ojs.emnuvens.com.br:article/582Revistahttps://isb.emnuvens.com.br/iheringiaONGhttps://isb.emnuvens.com.br/iheringia/oai||iheringia-bot@fzb.rs.gov.br2446-82310073-4705opendoar:2017-01-27T17:52:05Iheringia. Série Botânica - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false
dc.title.none.fl_str_mv Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
Fitotoxicidade do extrato de Conyza bonariensis (L.) Cronquist no desempenho fisiológico de sementes e plântulas de alface
title Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
spellingShingle Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
da Silva, Tuane Araldi
Enzymes
Horseweed
Lactuca sativa
Toxicity.
Buva
Enzimas
Lactuca sativa
Toxicidade.
title_short Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
title_full Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
title_fullStr Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
title_full_unstemmed Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
title_sort Phytotoxicity of Conyza bonariensis (L.) Cronquist extract on the seeds and lettuce seedlings physiological performance.
author da Silva, Tuane Araldi
author_facet da Silva, Tuane Araldi
Delias, Dominique
Pedó, Tiago
de Abreu, Everton Sozo
Villela, Francisco Amaral
Aumonde, Tiago Zanatta
author_role author
author2 Delias, Dominique
Pedó, Tiago
de Abreu, Everton Sozo
Villela, Francisco Amaral
Aumonde, Tiago Zanatta
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv da Silva, Tuane Araldi
Delias, Dominique
Pedó, Tiago
de Abreu, Everton Sozo
Villela, Francisco Amaral
Aumonde, Tiago Zanatta
dc.subject.por.fl_str_mv Enzymes
Horseweed
Lactuca sativa
Toxicity.
Buva
Enzimas
Lactuca sativa
Toxicidade.
topic Enzymes
Horseweed
Lactuca sativa
Toxicity.
Buva
Enzimas
Lactuca sativa
Toxicidade.
description This study evaluated the infl uence of C. bonariensis extract concentrations on the physiological performance of seeds and the antioxidative metabolism of lettuce seedlings. The treatments were concentrations of 0; 2; 4; 6 and 8 % of the aqueous extract of leaves. The germination, speed index, electrical conductivity, seedling emergence, total dry mass of seedlings, hydrogen peroxide content, lipid peroxidation, enzyme activity, superoxide dismutase, catalase and ascorbate peroxidase were evaluated. C. bonariensis extract has toxic eff ects on seeds and lettuce seedlings. The higher extract concentrations (6 and 8 %) inhibited the germination and early growth of seedlings more. Increasing the concentration of the extract resulted in an increase of electrical conductivity in seeds and increased the levels of hydrogen peroxide, lipid peroxidation, superoxide dismutase, catalase and ascorbate peroxidase.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-17
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://isb.emnuvens.com.br/iheringia/article/view/582
url https://isb.emnuvens.com.br/iheringia/article/view/582
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://isb.emnuvens.com.br/iheringia/article/view/582/310
dc.rights.driver.fl_str_mv Copyright (c) 2017 Iheringia. Série Botânica.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Iheringia. Série Botânica.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Iheringia. Série Botânica.
Iheringia, Série Botânica.
publisher.none.fl_str_mv Iheringia. Série Botânica.
Iheringia, Série Botânica.
dc.source.none.fl_str_mv Iheringia. Série Botânica.; Vol. 71 No. 3 (2016); 213-221
Iheringia, Série Botânica.; v. 71 n. 3 (2016); 213-221
2446-8231
0073-4705
reponame:Iheringia. Série Botânica
instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron:FZB/RS
instname_str Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron_str FZB/RS
institution FZB/RS
reponame_str Iheringia. Série Botânica
collection Iheringia. Série Botânica
repository.name.fl_str_mv Iheringia. Série Botânica - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
repository.mail.fl_str_mv ||iheringia-bot@fzb.rs.gov.br
_version_ 1798948135812202496

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