Glyphosate applied at low doses can stimulate plant growth.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
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/543207 |
Resumo: | BACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of Chemical Industry |
id |
EMBR_61279c32b861fa5e56b89c09da668123 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/543207 |
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 |
Glyphosate applied at low doses can stimulate plant growth.GlifosatoCrescimento vegetativoAgriculturaAgrotóxicoEucaliptoHerbicidaMilhoSojaPinusBACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of Chemical IndustryEDIVALDO VELINI, USP/Esalq; ELZA ALVES, USP/Esalq; MARIA C. GODOY, USP/Esalq; DANA K. MESCHADE, USP/Esalq; REGINALDO TEODORO DE SOUZA, CNPUV; STEPHEN O. DUKE, US Department of Agriculture.VELINI, E.ALVES, E.GODOY, M. C.MESCHEDE, D. K.SOUZA, R. T. deDUKE, S. O.2019-04-10T00:38:10Z2019-04-10T00:38:10Z2008-12-1520082019-06-11T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePest Management Science, Sussex, v. 64, n. 4, p. 489-496, 2008.http://www.alice.cnptia.embrapa.br/alice/handle/doc/543207enginfo: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:EMBRAPA2019-04-10T00:38:17Zoai:www.alice.cnptia.embrapa.br:doc/543207Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542019-04-10T00:38:17falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542019-04-10T00:38:17Repositório 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 |
Glyphosate applied at low doses can stimulate plant growth. |
title |
Glyphosate applied at low doses can stimulate plant growth. |
spellingShingle |
Glyphosate applied at low doses can stimulate plant growth. VELINI, E. Glifosato Crescimento vegetativo Agricultura Agrotóxico Eucalipto Herbicida Milho Soja Pinus |
title_short |
Glyphosate applied at low doses can stimulate plant growth. |
title_full |
Glyphosate applied at low doses can stimulate plant growth. |
title_fullStr |
Glyphosate applied at low doses can stimulate plant growth. |
title_full_unstemmed |
Glyphosate applied at low doses can stimulate plant growth. |
title_sort |
Glyphosate applied at low doses can stimulate plant growth. |
author |
VELINI, E. |
author_facet |
VELINI, E. ALVES, E. GODOY, M. C. MESCHEDE, D. K. SOUZA, R. T. de DUKE, S. O. |
author_role |
author |
author2 |
ALVES, E. GODOY, M. C. MESCHEDE, D. K. SOUZA, R. T. de DUKE, S. O. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
EDIVALDO VELINI, USP/Esalq; ELZA ALVES, USP/Esalq; MARIA C. GODOY, USP/Esalq; DANA K. MESCHADE, USP/Esalq; REGINALDO TEODORO DE SOUZA, CNPUV; STEPHEN O. DUKE, US Department of Agriculture. |
dc.contributor.author.fl_str_mv |
VELINI, E. ALVES, E. GODOY, M. C. MESCHEDE, D. K. SOUZA, R. T. de DUKE, S. O. |
dc.subject.por.fl_str_mv |
Glifosato Crescimento vegetativo Agricultura Agrotóxico Eucalipto Herbicida Milho Soja Pinus |
topic |
Glifosato Crescimento vegetativo Agricultura Agrotóxico Eucalipto Herbicida Milho Soja Pinus |
description |
BACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of Chemical Industry |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-15 2008 2019-04-10T00:38:10Z 2019-04-10T00:38:10Z 2019-06-11T11:11:11Z |
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 |
Pest Management Science, Sussex, v. 64, n. 4, p. 489-496, 2008. http://www.alice.cnptia.embrapa.br/alice/handle/doc/543207 |
identifier_str_mv |
Pest Management Science, Sussex, v. 64, n. 4, p. 489-496, 2008. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/543207 |
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_ |
1794503473578901504 |