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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
09/07/2003 |
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Data da última atualização: |
11/07/2005 |
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Autoria: |
FREITAS, F. de O. |
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Título: |
As expansoes do milho - Zea mays, L. - para a América do Sul, baseado no resgate e estudo de DNA anciao de amostras arqueológicas. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Brasilia: Embrapa Recursos Geneticos e Biotecnologia, 2002. |
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Páginas: |
19 p. |
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Série: |
(Embrapa Recursos Geneticos e Biotecnologia. Boletim de Pesquisa e Desenvolvimento, 32). |
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Idioma: |
Português |
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Palavras-Chave: |
America do Sul; Amostra arqueologica. |
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Thesagro: |
DNA; Genética; Milho; Zea Mays. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CENARGEN/23671/1/bp032.pdf
https://www.cenargen.embrapa.br/publica/trabalhos/bp032.pdf
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Marc: |
LEADER 00668nam a2200193 a 4500
001 1184682
005 2005-07-11
008 2002 bl uuuu u0uu1 u #d
100 1 $aFREITAS, F. de O.
245 $aAs expansoes do milho - Zea mays, L. - para a América do Sul, baseado no resgate e estudo de DNA anciao de amostras arqueológicas.
260 $aBrasilia: Embrapa Recursos Geneticos e Biotecnologia$c2002
300 $a19 p.
490 $a(Embrapa Recursos Geneticos e Biotecnologia. Boletim de Pesquisa e Desenvolvimento, 32).
650 $aDNA
650 $aGenética
650 $aMilho
650 $aZea Mays
653 $aAmerica do Sul
653 $aAmostra arqueologica
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
15/12/2008 |
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Data da última atualização: |
11/06/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
VELINI, E.; ALVES, E.; GODOY, M. C.; MESCHEDE, D. K.; SOUZA, R. T. de; DUKE, S. O. |
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Afiliação: |
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. |
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Título: |
Glyphosate applied at low doses can stimulate plant growth. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pest Management Science, Sussex, v. 64, n. 4, p. 489-496, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
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 MenosBACKGROUND: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 C... Mostrar Tudo |
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Palavras-Chave: |
Crescimento vegetativo; Glifosato. |
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Thesagro: |
Agricultura; Agrotóxico; Eucalipto; Herbicida; Milho; Soja. |
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Thesaurus NAL: |
Pinus. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195637/1/Velini-et-al-2008-Pest-Management-Science.pdf
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Marc: |
LEADER 02267naa a2200289 a 4500
001 1543207
005 2019-06-11
008 2008 bl uuuu u00u1 u #d
100 1 $aVELINI, E.
245 $aGlyphosate applied at low doses can stimulate plant growth.$h[electronic resource]
260 $c2008
520 $aBACKGROUND: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
650 $aPinus
650 $aAgricultura
650 $aAgrotóxico
650 $aEucalipto
650 $aHerbicida
650 $aMilho
650 $aSoja
653 $aCrescimento vegetativo
653 $aGlifosato
700 1 $aALVES, E.
700 1 $aGODOY, M. C.
700 1 $aMESCHEDE, D. K.
700 1 $aSOUZA, R. T. de
700 1 $aDUKE, S. O.
773 $tPest Management Science, Sussex$gv. 64, n. 4, p. 489-496, 2008.
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Embrapa Uva e Vinho (CNPUV) |
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