Insecticidal activity of leaf ethanolic extracts of nine piperacea (Piper spp.) on Drosophila melanogaster
Currently, indiscriminate use of synthetic pesticides has caused serious problems in the environment, so it is necessary to research and develop new alternatives for the control of pests. Plants, for its biological activity, are an important source of new compounds that can replace synthetic pestici...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Internacional de Contaminación Ambiental |
| Idioma: | español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/45981 |
| Acceso en línea: | https://www.revistascca.unam.mx/rica/index.php/rica/article/view/45981 |
| Access Level: | acceso abierto |
| Palabra clave: | bioinsecticides toxicity LC50 bioassays bioinsecticidas toxicidad CL50 bioensayos |
| Sumario: | Currently, indiscriminate use of synthetic pesticides has caused serious problems in the environment, so it is necessary to research and develop new alternatives for the control of pests. Plants, for its biological activity, are an important source of new compounds that can replace synthetic pesticides. The toxicity associated with extracts from various species of the genus Piper has been associated with a high insecticidal activity. The chemical nature of the compounds with biological activity present in the plant extracts is carried out through a preliminary phytochemical characterization, which complemented demonstrating their effectiveness in various biological models. In this work it’s evaluated the insecticidal activity of the ethanol extracts leaf of 9 Piper species collected in the central region of the State of Veracruz. Leaf samples were extracted in Soxhlet until exhaustion and the obtained extracts were concentrated on a rotary evaporator under reduced pressure. The medium lethal concentration (LC50) was determined in adult Drosophila melanogaster Canton S strain by contact disks test. The phytochemical analysis determined the presence of alkaloids, flavonoids, terpenes and/or sterols in the nine species, while the coumarins only was found in P. hispidum, P. umbellatum, P. nudum and P. psilorhachis. It does not detect the presence of saponins in any of the studied species. All extracts were insecticidal activity against D. melanogaster; P amalago presented the highest activity (LC50 of 27.95 mg/mL) followed by P. umbellatum (34.54), P. aduncum (54.20), P. nudum (176.77), P. diandrum (261.72), P. psilorhachis (625.6), P. hispidum (761.98) and P. sanctum (4704.93). It is concluded that the species with the greatest potential to use its extracts as bioinsecticides are P. amalago, P. umbellatum and P. aduncum since shown to be toxic at lowest concentrations. |
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