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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/05/2005 |
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Data da última atualização: |
19/07/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VOLL, E.; VOLL, C. E.; VICTORIA FILHO, R. |
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Afiliação: |
ELEMAR VOLL, CNPSO. |
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Título: |
Allelopathic effects of aconitic acid on wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia). |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Environmental Science and Health, New York, v. B40, n. 1, p. 69-75, 2005. |
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DOI: |
10.1081/PFC-200034226 |
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Idioma: |
Inglês |
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Conteúdo: |
High infestations of alexandergrass (Brachiaria plantaginea) in experimental area have reduced seedbank of some weed species in soil at a greater degree compared to those obtained with the use of an efficient herbicide. Aconitic acid (AA) has been identified in those plants in high concentration. Thus, two experiments were carried out in the laboratory to determine the effects of pure AA on weed seed germination and on endophytic fungi in wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia) weed species. Doses of AA (0, 0.5, 1.0, and 2.0 mM) were introduced in agar-water 0.5% medium and weed seeds treated with and without external sterilization by sodium hypochloride. Four replications of fifty seeds of each species by treatment were sown in plastic boxes with cover and maintained in germination chamber for 12 days. Reduction in germination rate, root and stem growth were observed in both species, as well as reduction in root number in morningglory were also observed at 2.0 mM concentration of AA. An increase in number of seeds with presence of endophytic fungi was also observed in both species, independently of seed sterilization, mainly of a green type fungi coloration in wild poinsettia. Aconitic acid presents allelopathic activity and can stimulate endophytic fungi species growth in weed seeds. |
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Palavras-Chave: |
Fungo endofítico. |
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Thesagro: |
Alelopatia; Erva Daninha. |
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Thesaurus Nal: |
Aconitic acid. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02019naa a2200205 a 4500
001 1467944
005 2024-07-19
008 2005 bl uuuu u00u1 u #d
024 7 $a10.1081/PFC-200034226$2DOI
100 1 $aVOLL, E.
245 $aAllelopathic effects of aconitic acid on wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia).$h[electronic resource]
260 $c2005
520 $aHigh infestations of alexandergrass (Brachiaria plantaginea) in experimental area have reduced seedbank of some weed species in soil at a greater degree compared to those obtained with the use of an efficient herbicide. Aconitic acid (AA) has been identified in those plants in high concentration. Thus, two experiments were carried out in the laboratory to determine the effects of pure AA on weed seed germination and on endophytic fungi in wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia) weed species. Doses of AA (0, 0.5, 1.0, and 2.0 mM) were introduced in agar-water 0.5% medium and weed seeds treated with and without external sterilization by sodium hypochloride. Four replications of fifty seeds of each species by treatment were sown in plastic boxes with cover and maintained in germination chamber for 12 days. Reduction in germination rate, root and stem growth were observed in both species, as well as reduction in root number in morningglory were also observed at 2.0 mM concentration of AA. An increase in number of seeds with presence of endophytic fungi was also observed in both species, independently of seed sterilization, mainly of a green type fungi coloration in wild poinsettia. Aconitic acid presents allelopathic activity and can stimulate endophytic fungi species growth in weed seeds.
650 $aAconitic acid
650 $aAlelopatia
650 $aErva Daninha
653 $aFungo endofítico
700 1 $aVOLL, C. E.
700 1 $aVICTORIA FILHO, R.
773 $tJournal of Environmental Science and Health, New York$gv. B40, n. 1, p. 69-75, 2005.
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Embrapa Soja (CNPSO) |
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| 9. |  | STUEPP, C. A.; FRAGOSO, R. de O.; MAGGIONI, R. de A.; LATOH, L. P.; WENDLING, I.; ZUFFELLATO-RIBAS, K. C. Ex vitro system for acer palmatum plants propagation by mini-cuttings technique. Cerne, Lavras, v. 22, n. 3, p. 355-364, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 10. | | FRAGOSO, R. de O.; STUEPP, C. A.; CARPANEZZI, A. A.; WENDLING, I.; ZUFFELLATO-RIBAS, K. C.; KOEHLER, H. S. Ficus enormis cuttings rooting: concentrations of indole butyric acid and seasonal variations. Bosque, v. 41, n. 3, p. 373-379, 2020. Notas.| Tipo: Nota Técnica/Nota Científica |
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| 13. | | FRAGOSO, R. de O.; STUEPP, C. A.; CARPANEZZI, A. A.; WENDLING, I.; ZUFFELLATO-RIBAS, K. C.; KOEHLER, H. S. Substratos renováveis na produção de mudas de Ficus enormis proveniente de jardim clonal. Pesquisa Florestal Brasileira, Colombo, v. 36, n. 88, p. 537-541, out./dez. 2016. Nota científica.| Tipo: Nota Técnica/Nota Científica |
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| 15. | | FRAGOSO, R. de O.; STUEPP, C. A.; SÁ, F. P. de; KRATZ, D.; ZUFFELLATO-RIBAS, K. C.; WENDLING, I. Vegetative rescue and ex vitro system production of Tibouchina sellowiana clonal plants by cutting and mini-cutting. Ciência Rural, Santa Maria, v.47, n. 11, e20160098, Nov. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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