Artigo

Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)

For the past few years, special attention has been given to chemical composites involved in interaction between plants, especially when the potential of their use in weed management is known. The Amazon region with its enormous biodiversity and abundance of plant species may offer excellent opportun...

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Autor principal: Souza Filho, Antônio Pedro da Silva
Outros Autores: Gurgel, E. S.C., Queiroz, M. S M, Santos, J. U M
Grau: Artigo
Idioma: pt_BR
Publicado em: Planta Daninha 2020
Assuntos:
Copaifera
Copaifera Duckei
Copaifera Reticulata
Fabaceae
Mimosa
Mimosa Pudica
Senna
Senna Obtusifolia
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/18253
id oai:repositorio:1-18253
recordtype dspace
spelling oai:repositorio:1-18253 Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae) Atividade alelopática de extratos brutos de três espécies de copaifera (leguminosae-caesalpinioideae) Souza Filho, Antônio Pedro da Silva Gurgel, E. S.C. Queiroz, M. S M Santos, J. U M Copaifera Copaifera Duckei Copaifera Reticulata Fabaceae Mimosa Mimosa Pudica Senna Senna Obtusifolia For the past few years, special attention has been given to chemical composites involved in interaction between plants, especially when the potential of their use in weed management is known. The Amazon region with its enormous biodiversity and abundance of plant species may offer excellent opportunities for the discovery of innovative chemical molecules capable of being used in agriculture. Thus, in this paper, a comparative analysis was made between the potential allelopathic activity of three species of Copaifera, characterizing the variations of the intensity of the allelopathic effects of the donating species, plant fraction and chemical component polarity. Hexanic and ethanolic extracts, prepared at 1.0% from the leaves, branches and barks of Copaifera duckei, C. marti and C. reticulata, were tested on seed germination and development of Mimosa pudica and Senna obtusifolia weed roots. The results showed that the intensity of the effects varied according to the variables studied. The ethanolic extract of C. martii and C. reticulate leaves and barks showed high potential to inhibit seed germination, especially of M. pudica species. The species C. duckei showed low allelopathic inhibitory potential in the germination of two receptor species. Barks, branches and especially leaves of C. duckei presented more expressive inhibitory potential for root development. Polar, and especially non-polar chemical composites, are involved in the allelopathic activity of C. duckei. Differently for C. martii and C. reticulata, the polar composites are preferentially involved in the inhibitory activity evidenced by these species, especially those located on the leaves and barks. Comparatively, it was observed that the weed species receptor tended to show more sensitivity to the allelopathic effects of the extracts, especially in the germination bioassay. 2020-06-15T21:53:02Z 2020-06-15T21:53:02Z 2010 Artigo https://repositorio.inpa.gov.br/handle/1/18253 pt_BR Volume 28, Número 4, Pags. 743-751 Restrito application/pdf Planta Daninha
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
topic Copaifera
Copaifera Duckei
Copaifera Reticulata
Fabaceae
Mimosa
Mimosa Pudica
Senna
Senna Obtusifolia
spellingShingle Copaifera
Copaifera Duckei
Copaifera Reticulata
Fabaceae
Mimosa
Mimosa Pudica
Senna
Senna Obtusifolia
Souza Filho, Antônio Pedro da Silva
Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
topic_facet Copaifera
Copaifera Duckei
Copaifera Reticulata
Fabaceae
Mimosa
Mimosa Pudica
Senna
Senna Obtusifolia
description For the past few years, special attention has been given to chemical composites involved in interaction between plants, especially when the potential of their use in weed management is known. The Amazon region with its enormous biodiversity and abundance of plant species may offer excellent opportunities for the discovery of innovative chemical molecules capable of being used in agriculture. Thus, in this paper, a comparative analysis was made between the potential allelopathic activity of three species of Copaifera, characterizing the variations of the intensity of the allelopathic effects of the donating species, plant fraction and chemical component polarity. Hexanic and ethanolic extracts, prepared at 1.0% from the leaves, branches and barks of Copaifera duckei, C. marti and C. reticulata, were tested on seed germination and development of Mimosa pudica and Senna obtusifolia weed roots. The results showed that the intensity of the effects varied according to the variables studied. The ethanolic extract of C. martii and C. reticulate leaves and barks showed high potential to inhibit seed germination, especially of M. pudica species. The species C. duckei showed low allelopathic inhibitory potential in the germination of two receptor species. Barks, branches and especially leaves of C. duckei presented more expressive inhibitory potential for root development. Polar, and especially non-polar chemical composites, are involved in the allelopathic activity of C. duckei. Differently for C. martii and C. reticulata, the polar composites are preferentially involved in the inhibitory activity evidenced by these species, especially those located on the leaves and barks. Comparatively, it was observed that the weed species receptor tended to show more sensitivity to the allelopathic effects of the extracts, especially in the germination bioassay.
format Artigo
author Souza Filho, Antônio Pedro da Silva
author2 Gurgel, E. S.C.
Queiroz, M. S M
Santos, J. U M
author2Str Gurgel, E. S.C.
Queiroz, M. S M
Santos, J. U M
title Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
title_short Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
title_full Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
title_fullStr Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
title_full_unstemmed Allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
title_sort allelophatic activity of crude extracts from three species of copaifera (leguminosae - caesalpinioidedae)
publisher Planta Daninha
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/18253
_version_ 1787141068969476096
score 11.755432

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