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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
01/04/2015 |
Data da última atualização: |
14/03/2016 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
BASSOI, M. C.; FOLONI, J. S. S. |
Afiliação: |
MANOEL CARLOS BASSOI, CNPSO; JOSE SALVADOR SIMONETI FOLONI, CNPSO. |
Título: |
Cultivar de trigo BRS Sabiá: características e desempenho agronômico. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Londrina: Embrapa Soja, 2015. |
Páginas: |
6 p. |
Série: |
(Embrapa Soja. Comunicado técnico, 84). |
ISSN: |
1517-1752 |
Idioma: |
Português |
Conteúdo: |
Desenvolvimento da cultivar. Características morfológicas. características agronômicas. |
Thesagro: |
Trigo; Variedade. |
Thesaurus Nal: |
Cultivars; Wheat. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/124123/1/comunicado-tecnico-84-Sabia-OL.pdf
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Marc: |
LEADER 00627nam a2200205 a 4500 001 2012546 005 2016-03-14 008 2015 bl uuuu u0uu1 u #d 022 $a1517-1752 100 1 $aBASSOI, M. C. 245 $aCultivar de trigo BRS Sabiá$bcaracterísticas e desempenho agronômico. 260 $aLondrina: Embrapa Soja$c2015 300 $a6 p. 490 $a(Embrapa Soja. Comunicado técnico, 84). 520 $aDesenvolvimento da cultivar. Características morfológicas. características agronômicas. 650 $aCultivars 650 $aWheat 650 $aTrigo 650 $aVariedade 700 1 $aFOLONI, J. S. S.
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Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
29/12/2015 |
Data da última atualização: |
25/01/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, F. M. L.; DONEGA, M. A.; CERDEIRA, A. L.; CORNIANI, N.; VELINI, E. D.; CANTRELL, C. L.; DAYAN, F. E.; COELHO, M. N.; SHEA, K.; DUKE, S. O. |
Afiliação: |
FERDINANDO MARCOS LIMA SILVA, FCA-UNESP; MATHEUS AUGUSTO DONEGA, ESALQ-USP; ANTONIO LUIZ CERDEIRA, CNPMA; NATALIA CORNIANI, FCA-UNESP; EDIVALDO DOMINGUES VELINI, FCA-UNESP; CHARLES L CANTRELL, USDA-ARS; FRANCK E DAYAN, USDA-ARS; MARIANA E COELHO, UFF; KATRIONA SHEA, Pennsylvania State University; STEPHEN O DUKE, USDA-ARS. |
Título: |
Roots of the invasive species Carduus nutans L. and C. acanthoides L. produce large amounts of aplotaxene, a possible allelochemical. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Journal of Chemical Ecology, New York, v. 40, n. 3, p. 276-284, 2014. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The invasive thistle Carduus nutans has been reported to be allelopathic, yet no allelochemicals have been identified from the species. In a search for allelochemicals from C. nutans and the closely related invasive species C. acanthoides, bioassay-guided fractionation of roots and leaves of each species were conducted. Only dichloromethane extracts of the roots of both species contained a phytotoxin (aplotaxene, (Z,Z,Z)-heptadeca-1,8,11,14-tetraene) with sufficient total activity to potentially act as an allelochemical. Aplotaxene made up 0.44 % of the weight of greenhousegrown C. acanthoides roots (ca. 20 mM in the plant) and was not found in leaves of either species. It inhibited growth of lettuce 50%(I50) in soil at a concentration of ca. 0.5 mg g?1 of dry soil (ca. 6.5 mM in soil moisture). These values gave a total activity in soil value (molar concentration in the plant divided by the molarity required for 50 % growth inhibition in soi l = 3.08) similar to those of some established allelochemicals. The aplotaxene I50 for duckweed (Lemna paucicostata) in nutrient solution was less than 0.333 mM, and the compound caused cellular leakage of cucumber cotyledon discs in darkness and light at similar concentrations. Soil in which C. acanthoides had grown contained aplotaxene at a lower concentration than necessary for biological activity in our short-term soil bioassays, but these levels might have activity over longer periods of time and might be an underestimate of concentrations in undisturbed and/or rhizosphere soil. MenosAbstract: The invasive thistle Carduus nutans has been reported to be allelopathic, yet no allelochemicals have been identified from the species. In a search for allelochemicals from C. nutans and the closely related invasive species C. acanthoides, bioassay-guided fractionation of roots and leaves of each species were conducted. Only dichloromethane extracts of the roots of both species contained a phytotoxin (aplotaxene, (Z,Z,Z)-heptadeca-1,8,11,14-tetraene) with sufficient total activity to potentially act as an allelochemical. Aplotaxene made up 0.44 % of the weight of greenhousegrown C. acanthoides roots (ca. 20 mM in the plant) and was not found in leaves of either species. It inhibited growth of lettuce 50%(I50) in soil at a concentration of ca. 0.5 mg g?1 of dry soil (ca. 6.5 mM in soil moisture). These values gave a total activity in soil value (molar concentration in the plant divided by the molarity required for 50 % growth inhibition in soi l = 3.08) similar to those of some established allelochemicals. The aplotaxene I50 for duckweed (Lemna paucicostata) in nutrient solution was less than 0.333 mM, and the compound caused cellular leakage of cucumber cotyledon discs in darkness and light at similar concentrations. Soil in which C. acanthoides had grown contained aplotaxene at a lower concentration than necessary for biological activity in our short-term soil bioassays, but these levels might have activity over longer periods of time and might be an underestimate... Mostrar Tudo |
Palavras-Chave: |
Aplotaxene; Phytotoxin; Phytotoxina. |
Thesagro: |
Alelopatia; Erva daninha. |
Thesaurus NAL: |
Allelochemicals; Allelopathy; Carduus acanthoides; Carduus nutans. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02538naa a2200337 a 4500 001 2032640 005 2016-01-25 008 2014 bl uuuu u00u1 u #d 100 1 $aSILVA, F. M. L. 245 $aRoots of the invasive species Carduus nutans L. and C. acanthoides L. produce large amounts of aplotaxene, a possible allelochemical.$h[electronic resource] 260 $c2014 520 $aAbstract: The invasive thistle Carduus nutans has been reported to be allelopathic, yet no allelochemicals have been identified from the species. In a search for allelochemicals from C. nutans and the closely related invasive species C. acanthoides, bioassay-guided fractionation of roots and leaves of each species were conducted. Only dichloromethane extracts of the roots of both species contained a phytotoxin (aplotaxene, (Z,Z,Z)-heptadeca-1,8,11,14-tetraene) with sufficient total activity to potentially act as an allelochemical. Aplotaxene made up 0.44 % of the weight of greenhousegrown C. acanthoides roots (ca. 20 mM in the plant) and was not found in leaves of either species. It inhibited growth of lettuce 50%(I50) in soil at a concentration of ca. 0.5 mg g?1 of dry soil (ca. 6.5 mM in soil moisture). These values gave a total activity in soil value (molar concentration in the plant divided by the molarity required for 50 % growth inhibition in soi l = 3.08) similar to those of some established allelochemicals. The aplotaxene I50 for duckweed (Lemna paucicostata) in nutrient solution was less than 0.333 mM, and the compound caused cellular leakage of cucumber cotyledon discs in darkness and light at similar concentrations. Soil in which C. acanthoides had grown contained aplotaxene at a lower concentration than necessary for biological activity in our short-term soil bioassays, but these levels might have activity over longer periods of time and might be an underestimate of concentrations in undisturbed and/or rhizosphere soil. 650 $aAllelochemicals 650 $aAllelopathy 650 $aCarduus acanthoides 650 $aCarduus nutans 650 $aAlelopatia 650 $aErva daninha 653 $aAplotaxene 653 $aPhytotoxin 653 $aPhytotoxina 700 1 $aDONEGA, M. A. 700 1 $aCERDEIRA, A. L. 700 1 $aCORNIANI, N. 700 1 $aVELINI, E. D. 700 1 $aCANTRELL, C. L. 700 1 $aDAYAN, F. E. 700 1 $aCOELHO, M. N. 700 1 $aSHEA, K. 700 1 $aDUKE, S. O. 773 $tJournal of Chemical Ecology, New York$gv. 40, n. 3, p. 276-284, 2014.
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