Data/hora: 16/06/2024 02:56:19

Biblioteca(s): | Embrapa Meio Ambiente.
Tipo da produção científica: | Resumo em Anais de Congresso
Data corrente: | 06/03/2014
Data da última atualização: | 06/03/2014
Autoria: | DUKE, S. O.; CERDEIRA, A. L.; CANTRELL, C. L.; SILVA, F. M.; CORNIANI, N.; VELINI, E. D.; DONEGA, M. A.
Afiliação: | STEPHEN O DUKE, USDA-ARS; ANTONIO LUIZ CERDEIRA, CNPMA; CHARES L CANTRELL, USDA-ARS; F M L SILVA, FCA-UNESP; NATALIA CORNIANI, FCA-UNESP; EDIVALDO DOMINGUES VELINI, FCA-UNESP; MATEUS AUGUSTO DONEGA, ESALQ-USP.
Título: | Potential allelochemicals of the invasive species Carduus nutans L. and C. acanthoides.
Ano de publicação: | 2013
Fonte/Imprenta: | 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.
Idioma: | Inglês
Conteúdo: | The thistles Carduus nutants L. and C. acanthoides L. have both been implicated as allelopathic species. These Eurasian native plants are invasive in the U.S. and other parts of the world, competing well with many native species. Bioassay-guided isolation of phytotoxins from shoots and roots of this plant revealed that a chemical found in the roots, aplotaxene (heptadeca-1,8,11,14-tetrane), to be the most likely candidate as an allelochemical. Contrary to the published work of others, we found that this compound to be moderately phytotoxic. It was also found in relatively large amounts in the roots of both Carduus species, and we found the compound to be exuded by the roots into the soil.
Palavras-Chave: | Fitotoxidade.
Thesagro: | Alelopatia; Erva daninha.
Thesaurus Nal: | Allelochemicals; Carduus acanthoides; Carduus nutans.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/98634/1/2013RA007.pdf
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (12964-1) - UPC - RA - DD -  -  -  - DIS