Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae)
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p37 |
Resumo: | This study aimed to evaluate the phytotoxicity of extracts and fractions of barks of Blepharocalyx salicifolius on elongation of etiolated coleoptiles of Triticum aestivum (wheat). The extracts hexane (Hx), ethyl acetate (AcOET), and aqueous (H2O) were obtained by means of exhaustive extraction with CH2Cl2/CH3OH and subsequent fractionation by partition chromatography coefficient. The extracts AcOET and Hx were fractionated by column chromatography by using organic solvents in increasing order of polarity yielding 7 hexanic fractions and 6 ethylic acetate fractions. Subsequently, the fractions Hx1 and Hx5 were subfractionated by column chromatography. The extracts AcOET and Hx inhibited elongation of coleoptiles. Four ethylic acetate fractions inhibited elongation of coleoptiles at all concentrations. Five hexanic fractions inhibited elongation of coleoptiles, the fractions Hx5 and Hx1 fractions showed phytotoxic effects equivalent or superior to those observed by the herbicide GOAL® at the same concentrations. All subfractions obtained by means of fractionation of Hx1 inhibited elongation of coleoptiles. Six fractions obtained by means of fractionation of Hx5 inhibited elongation of coleoptiles at all concentrations. This study proves the phytotoxicity of extracts of barks of B. salicifolius, providing indications that they may act as promising natural herbicides. |
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Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae)Fitotoxicidade e fracionamento biodirigido dos extratos de cascas de Blepharocalyx salicifolius Kuth O. Berg (Myrtaceae)This study aimed to evaluate the phytotoxicity of extracts and fractions of barks of Blepharocalyx salicifolius on elongation of etiolated coleoptiles of Triticum aestivum (wheat). The extracts hexane (Hx), ethyl acetate (AcOET), and aqueous (H2O) were obtained by means of exhaustive extraction with CH2Cl2/CH3OH and subsequent fractionation by partition chromatography coefficient. The extracts AcOET and Hx were fractionated by column chromatography by using organic solvents in increasing order of polarity yielding 7 hexanic fractions and 6 ethylic acetate fractions. Subsequently, the fractions Hx1 and Hx5 were subfractionated by column chromatography. The extracts AcOET and Hx inhibited elongation of coleoptiles. Four ethylic acetate fractions inhibited elongation of coleoptiles at all concentrations. Five hexanic fractions inhibited elongation of coleoptiles, the fractions Hx5 and Hx1 fractions showed phytotoxic effects equivalent or superior to those observed by the herbicide GOAL® at the same concentrations. All subfractions obtained by means of fractionation of Hx1 inhibited elongation of coleoptiles. Six fractions obtained by means of fractionation of Hx5 inhibited elongation of coleoptiles at all concentrations. This study proves the phytotoxicity of extracts of barks of B. salicifolius, providing indications that they may act as promising natural herbicides.Este estudo teve por objetivo avaliar a fitotoxicidade de extratos e frações de cascas de Blepharocalyx salicifolius sobre o alongamento de coleóptilos estiolados de Triticum aestivum (trigo). Os extratos hexânico (Hx), acetato etílico (AcOET) e aquoso (H2O) foram obtidos por meio de extração exaustiva com CH2Cl2/CH3OH e posterior fracionamento em cromatografia por coeficiente de partição. Os extratos AcOET e Hx foram fracionados por cromatografia em coluna com a utilização de solventes orgânicos em ordem crescente de polaridade, originando sete frações hexânicas e seis frações acetato etílicas. Posteriormente, as frações Hx1 e Hx5 foram subfracionadas por cromatografia em coluna. Os extratos AcOET e Hx inibiram o alongamento dos coleóptilos. Quatro frações acetato etílicas inibiram o alongamento dos coleóptilos em todas as concentrações. Cinco frações hexânicas inibiram o alongamento dos coleóptilos, as frações Hx1 e Hx5 apresentaram efeitos fitotóxicos equivalentes ou superiores aos observados pelo herbicida GOAL® nas mesmas concentrações. Todas as subfrações obtidas por meio do fracionamento da Hx1 inibiram o alongamento dos coleóptilos. Seis frações obtidas por meio do fracionamento da Hx5 inibiram o alongamento dos coleóptilos em todas as concentrações. Este estudo comprova a fitotoxicidade dos extratos de cascas de B. salicifolius, proporcionando indicativos de que estes possam atuar como promissores herbicidas naturais.Universidade Federal de Santa Catarina2014-10-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p3710.5007/2175-7925.2015v28n1p37Biotemas; v. 28 n. 1 (2015); 37-442175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p37/28672Copyright (c) 2015 Eduardo Habermann, Viviane de Cassia Pereira, Maristela Imatomi, Flávia Cevithereza Pontes, Sonia Cristina Juliano Gualtieriinfo:eu-repo/semantics/openAccessHabermann, EduardoPereira, Viviane de CassiaImatomi, MaristelaPontes, Flávia CevitherezaGualtieri, Sonia Cristina Juliano2017-10-19T16:48:32Zoai:periodicos.ufsc.br:article/33217Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T16:48:32Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) Fitotoxicidade e fracionamento biodirigido dos extratos de cascas de Blepharocalyx salicifolius Kuth O. Berg (Myrtaceae) |
title |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
spellingShingle |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) Habermann, Eduardo |
title_short |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
title_full |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
title_fullStr |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
title_full_unstemmed |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
title_sort |
Phytotoxicity and biodirected fractionation of extracts of barks of Blepharocalyx salicifolius (Kunth) O.Berg. (Myrtaceae) |
author |
Habermann, Eduardo |
author_facet |
Habermann, Eduardo Pereira, Viviane de Cassia Imatomi, Maristela Pontes, Flávia Cevithereza Gualtieri, Sonia Cristina Juliano |
author_role |
author |
author2 |
Pereira, Viviane de Cassia Imatomi, Maristela Pontes, Flávia Cevithereza Gualtieri, Sonia Cristina Juliano |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Habermann, Eduardo Pereira, Viviane de Cassia Imatomi, Maristela Pontes, Flávia Cevithereza Gualtieri, Sonia Cristina Juliano |
description |
This study aimed to evaluate the phytotoxicity of extracts and fractions of barks of Blepharocalyx salicifolius on elongation of etiolated coleoptiles of Triticum aestivum (wheat). The extracts hexane (Hx), ethyl acetate (AcOET), and aqueous (H2O) were obtained by means of exhaustive extraction with CH2Cl2/CH3OH and subsequent fractionation by partition chromatography coefficient. The extracts AcOET and Hx were fractionated by column chromatography by using organic solvents in increasing order of polarity yielding 7 hexanic fractions and 6 ethylic acetate fractions. Subsequently, the fractions Hx1 and Hx5 were subfractionated by column chromatography. The extracts AcOET and Hx inhibited elongation of coleoptiles. Four ethylic acetate fractions inhibited elongation of coleoptiles at all concentrations. Five hexanic fractions inhibited elongation of coleoptiles, the fractions Hx5 and Hx1 fractions showed phytotoxic effects equivalent or superior to those observed by the herbicide GOAL® at the same concentrations. All subfractions obtained by means of fractionation of Hx1 inhibited elongation of coleoptiles. Six fractions obtained by means of fractionation of Hx5 inhibited elongation of coleoptiles at all concentrations. This study proves the phytotoxicity of extracts of barks of B. salicifolius, providing indications that they may act as promising natural herbicides. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-10-18 |
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://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p37 10.5007/2175-7925.2015v28n1p37 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p37 |
identifier_str_mv |
10.5007/2175-7925.2015v28n1p37 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p37/28672 |
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 |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 28 n. 1 (2015); 37-44 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940553462251520 |