Bionorte em Números
Artigo Publicado
| Ano do artigo | 2019 |
| Descrições/informações adicionais(EN) | The rich and diversified Amazonianflora represents an excellent resource of new chemical structures with biological activities. This study aims to contribute with information about the phytochemical profile and phytotoxic activity of the Copaiferaspecies essential oils:Copaifera duckei(Dwyer),Copaifera martii(Hayne), and Copaifera reticulata(Ducke) (Leguminosae - Caesalpinioideae). In this study, essential oils were extracted from leaves and stems by hydrodistillation process in an adapted Clevenger type device. The identification of the essential oils chemical components was performed by gas chromatography coupled mass spectrometry (GC/MS) and gas chromatography (GC?FID). Statistical analyses of the results were obtained by the data were analyzed using F-test and the mean values were compared by the Tukey test at 5% and Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA). The phytotoxic activity of these extracted essential oils was tested against two species of invasive plants native to the Brazilian Amazon, namely, Mimosa pudicaL. and Senna obtusifolia(L.) Irwin & Barneby). The essential oils effects on seed germination and elongation of the radicle and hypocotyl were observed. The compounds with the highest concentrations in the essential oils were sesquiterpene hydrocarbons, including germacrene D, β-caryophyllene, α-humulene, δ-elemene, and δ-cadinene. Inhibitory effects of the essential oils were greater on root development than on seed germination.Mimosa pudica L. tended to be more sensitive to the phytotoxic effects thanSenna obtusifolia(L.) Irwin & Barneby). Leaf oils presented greater inhibitory effects on root and hypocotyl development, whereas stem oils showed greater inhibition of seed germination, although in some cases, these differences were not statistically significant. The leaves essential oils had a greater number of constituents than those of the stem; this was especially observed in Copaifera mart |
| Divulgação científica | NAO |
| DOI | 10.1016/j.indcrop.2019.111850 |
| Idioma | Português |
| ISSN | 09266690 |
| Meio de divulgação | NAO_INFORMADO |
| Natureza | COMPLETO |
| Ordem de importância | 13 |
| Página inicial | 111850 |
| Relevânica | NAO |
| Sequencia da produção | 466 |
| Título do artigo | Chemical compositions and herbicidal (phytotoxic) activity of essential oils of three Copaifera species (Leguminosae-Caesalpinoideae) from Amazon-Brazil |
| Título do periódico ou revista | INDUSTRIAL CROPS AND PRODUCTS |
| Volume | 142 |
Parceiros
