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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
29/12/2015 |
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Data da última atualização: |
25/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
Roots of the invasive species Carduus nutans L. and C. acanthoides L. produce large amounts of aplotaxene, a possible allelochemical. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Chemical Ecology, New York, v. 40, n. 3, p. 276-284, 2014. |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Aplotaxene; Phytotoxin; Phytotoxina. |
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Thesagro: |
Alelopatia; Erva daninha. |
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Thesaurus Nal: |
Allelochemicals; Allelopathy; Carduus acanthoides; Carduus nutans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 11 | |
| 1. |  | CERDEIRA, A. L.; CANTRELL, C. L.; BYRD, J. D.; DUKE, S. O. Phytotoxic Activity of Imperata cylindrica (L.) P. Beauv. Extracts. Planta Medica, v. 77, n. 6, 2011. 10th Annual Oxford International Conference on the Science of Botanicals ICBS, 11-14 April, 2011, University of Mississippi, USA. Poster 39.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 2. | | CERDEIRA, A. L.; CANTRELL, C. L.; DAYAN, F. E.; BYRD, J. D.; DUKE, S. O. Tabanone, a new phytotoxic constituent of cogongrass (Imperata cylindrica). Weed Science, Champaign, v. 60, n. 2, p. 212-218, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 3. | | ROSA, L. H.; QUEIROZ, S. C. do N. de; WANG, X.; TECHEN, N.; CANTRELL, C. L.; WEDGE, D. E. Antifungal fatty acids produced by Coniochaeta ligniaria: a cryptic endophytic fungus associated with Smallanthus sonchifolius' autotrophic cultures. In: Planta Medica, Dordrecht, v. 79, n. 5, p. 5, 2013. Abstracts of the 12th International Conference on the Science of Botanicals (ICBS), Oxford, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 4. | | CERDEIRA, A. L.; SILVA, F. M. L.; DONEGÁ, M. A.; CANTRELL, C. L.; SHEA, K.; DUKE, S. O.; CORNIANI, N. Aplotaxene, an allelochemical from roots of the invasive species carduus nutans and C. acanthoides. Planta Medica, Dordrecht, v. 79, n. 5, p. 15, 2013. Abstracts of the 12th International Conference on the Science of Botanicals (ICBS), Oxford, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 6. | | MORAES, R. M.; CERDEIRA, A. L.; DUKE, S. O.; CANTRELL, C. L.; QUEIROZ, S. C. do N. de. Pesticidas naturais derivados de plantas: descoberta e usos. In: HALFELD-VIEIRA, B. A.; MARINHO-PRADO, J. S.; NECHET, K. de L.; MORANDI, M. A. B.; BETTIOL, W. (Ed.). Defensivos agrícolas naturais: uso e perspectivas. Brasília, DF: Embrapa, 2016. p. 505-541.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 7. | | DUKE, S. O.; CERDEIRA, A. L.; CANTRELL, C. L.; SILVA, F. M.; CORNIANI, N.; VELINI, E. D.; DONEGA, M. A. Potential allelochemicals of the invasive species Carduus nutans L. and C. acanthoides. In: WEED SCIENCE SOCIETY OF AMERICA / NORTHEASTERN WEED SCIENCE SOCIETY, 2013, Baltimore. Annual Meeting. Proceedings... Baltimore: Weed Science of America, Northeastern Weed Science Society, 2013. Ref. 254.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 8. | | QUEIROZ, S. C. do N. de; CANTRELL, C. L.; DUKE, S. O.; WEDGE, D. E.; NANDULA, V. K.; MORAES, R. M.; CERDEIRA, A. L. Bioassay-directed isolation and identification of phytotoxic and fungitoxic acetylenes from Conyza canadensis. Journal of Agricultural and Food Chemistry, Washington, DC, v. 60, n. 23, p. 5893-5898, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 9. | | ROSA, L. H.; QUEIROZ, S. C. do N. de; MORAES, R. M.; WANG, X.; TECHEN, N.; PAN, Z.; CANTRELL, C. L.; WEDGE, D. E. Coniochaeta ligniaria: antifungal activity of the cryptic endophytic fungus associated with autotrophic tissue cultures of the medicinal plant Smallanthus sonchifolius (Asteraceae). Symbiosis, Philadelphia, v. 60, p. 133-142, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 10. | | CERDEIRA, A. L.; SILVA, F. M. L.; DONEGA, M. A.; CORNIANI, N.; VELINI, E. D.; CANTRELL, C. L.; DAYAN, F. E.; COELHO, M. N.; SHEA, K.; DUKE, S. O. Aplotaxene, a possible allelochemical of thistle (Carduus sp). Planta Medica, Dordrecht, v. 80, n. 10, p. 778-779, 2014. Abstracts of 2014 American Society of Pharmacognosy 2014 Annual Meeting in conjunction with the 14th Annual Oxford International Conference on the Science of Botanicals, Oxford, 2014. Ref. PD9.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 11. | | 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. Roots of the invasive species Carduus nutans L. and C. acanthoides L. produce large amounts of aplotaxene, a possible allelochemical. Journal of Chemical Ecology, New York, v. 40, n. 3, p. 276-284, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 11 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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