Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/971153 |
Resumo: | In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated to identify their potential as allelochemicals, and we are also reporting the isolation and structural determination of a new flavonoid [5,3′-dihydroxy-4′-methoxy-(7,6:5′′,6′′)-2′′,2′′-dimethylpyranoflavanone (4)]. We investigated the effects of the dihydroflavonols 1-3 on seed germination and radicle and hypocotyl growth of the weed Mimosa pudica, using solutions at 150 mg.L-1. Urucuol B, alone, was the substance with the greatest potential to inhibit seed germination (26%), while isotirumalin showed greater ability to reduce the development of the hypocotyl (25%), but none of the three substances showed the potential to inhibit radicle. When combined in pairs, the substances showed synergism for the development of root and hypocotyl and effects on seed germination that could be attributed to antagonism. When tested separately, the trend has become more intense effects on seed germination, while for the substances tested in pairs, the intensity of the effect was greater on development of weed. |
id |
EMBR_1de50a238d5e9b444ba785c12f5e316f |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/971153 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds.Derris urucuGerminação de sementesAlelopatiaFlavonóideIn some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated to identify their potential as allelochemicals, and we are also reporting the isolation and structural determination of a new flavonoid [5,3′-dihydroxy-4′-methoxy-(7,6:5′′,6′′)-2′′,2′′-dimethylpyranoflavanone (4)]. We investigated the effects of the dihydroflavonols 1-3 on seed germination and radicle and hypocotyl growth of the weed Mimosa pudica, using solutions at 150 mg.L-1. Urucuol B, alone, was the substance with the greatest potential to inhibit seed germination (26%), while isotirumalin showed greater ability to reduce the development of the hypocotyl (25%), but none of the three substances showed the potential to inhibit radicle. When combined in pairs, the substances showed synergism for the development of root and hypocotyl and effects on seed germination that could be attributed to antagonism. When tested separately, the trend has become more intense effects on seed germination, while for the substances tested in pairs, the intensity of the effect was greater on development of weed.EWERTON A. S. DA SILVA, PÓS-GRADUANDA UFPA; LIVIA T. LÔBO, PÓS-GRADUANDA UFPA; GEILSON A. DA SILVA, PÓS-GRADUANDA UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; MILTON N. DA SILVA, PÓS-GRADUANDA UFPA; ALBERTO C. ARRUDA, PÓS-GRADUANDA UFPA; GISELLE M. S. P. GUILHON, PÓS-GRADUANDA UFPA; LOURIVALDO S. SANTOS, PÓS-GRADUANDA UFPA; MARA S. P. ARRUDA, PÓS-GRADUANDA UFPA.SILVA, E. A. S. daLÔBO, L. T.SILVA, G. A. daSOUZA FILHO, A. P. da S.SILVA, M. N. daARRUDA, A. C.GUILHON, G. M. S. P.SANTOS, L. S.ARRUDA, M. S. P.2013-11-13T11:11:11Z2013-11-13T11:11:11Z2013-11-1320132015-04-07T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAnais da Academia Brasileira de Ciências, v. 85, n. 3, p. 881-889, 2013.http://www.alice.cnptia.embrapa.br/alice/handle/doc/971153enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:12:03Zoai:www.alice.cnptia.embrapa.br:doc/971153Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:12:03falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:12:03Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
title |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
spellingShingle |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. SILVA, E. A. S. da Derris urucu Germinação de sementes Alelopatia Flavonóide |
title_short |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
title_full |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
title_fullStr |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
title_full_unstemmed |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
title_sort |
Flavonoids from leaves of Derris urucu: assessment of potential effects on seed germination and development of weeds. |
author |
SILVA, E. A. S. da |
author_facet |
SILVA, E. A. S. da LÔBO, L. T. SILVA, G. A. da SOUZA FILHO, A. P. da S. SILVA, M. N. da ARRUDA, A. C. GUILHON, G. M. S. P. SANTOS, L. S. ARRUDA, M. S. P. |
author_role |
author |
author2 |
LÔBO, L. T. SILVA, G. A. da SOUZA FILHO, A. P. da S. SILVA, M. N. da ARRUDA, A. C. GUILHON, G. M. S. P. SANTOS, L. S. ARRUDA, M. S. P. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
EWERTON A. S. DA SILVA, PÓS-GRADUANDA UFPA; LIVIA T. LÔBO, PÓS-GRADUANDA UFPA; GEILSON A. DA SILVA, PÓS-GRADUANDA UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; MILTON N. DA SILVA, PÓS-GRADUANDA UFPA; ALBERTO C. ARRUDA, PÓS-GRADUANDA UFPA; GISELLE M. S. P. GUILHON, PÓS-GRADUANDA UFPA; LOURIVALDO S. SANTOS, PÓS-GRADUANDA UFPA; MARA S. P. ARRUDA, PÓS-GRADUANDA UFPA. |
dc.contributor.author.fl_str_mv |
SILVA, E. A. S. da LÔBO, L. T. SILVA, G. A. da SOUZA FILHO, A. P. da S. SILVA, M. N. da ARRUDA, A. C. GUILHON, G. M. S. P. SANTOS, L. S. ARRUDA, M. S. P. |
dc.subject.por.fl_str_mv |
Derris urucu Germinação de sementes Alelopatia Flavonóide |
topic |
Derris urucu Germinação de sementes Alelopatia Flavonóide |
description |
In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated to identify their potential as allelochemicals, and we are also reporting the isolation and structural determination of a new flavonoid [5,3′-dihydroxy-4′-methoxy-(7,6:5′′,6′′)-2′′,2′′-dimethylpyranoflavanone (4)]. We investigated the effects of the dihydroflavonols 1-3 on seed germination and radicle and hypocotyl growth of the weed Mimosa pudica, using solutions at 150 mg.L-1. Urucuol B, alone, was the substance with the greatest potential to inhibit seed germination (26%), while isotirumalin showed greater ability to reduce the development of the hypocotyl (25%), but none of the three substances showed the potential to inhibit radicle. When combined in pairs, the substances showed synergism for the development of root and hypocotyl and effects on seed germination that could be attributed to antagonism. When tested separately, the trend has become more intense effects on seed germination, while for the substances tested in pairs, the intensity of the effect was greater on development of weed. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-11-13T11:11:11Z 2013-11-13T11:11:11Z 2013-11-13 2013 2015-04-07T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Anais da Academia Brasileira de Ciências, v. 85, n. 3, p. 881-889, 2013. http://www.alice.cnptia.embrapa.br/alice/handle/doc/971153 |
identifier_str_mv |
Anais da Academia Brasileira de Ciências, v. 85, n. 3, p. 881-889, 2013. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/971153 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503383169630208 |