| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000412237 |
| ISSN: | 0001-3765 |
| Autores: | Moraes, Marcilio M. de1 Camara, Claudio A.G. da1 Silva, Milena M.C. da1 |
| Instituciones: | 1Universidade Federal Rural de Pernambuco, Departamento de Quimica, Recife, Pernambuco. Brasil |
| Año: | 2017 |
| Periodo: | Sep |
| Volumen: | 89 |
| Número: | 3 |
| Paginación: | 1417-1430 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Essential oils from the leaves of two species of the genus Ocotea that occur in the Atlantic Forest in the state of Pernambuco, Brazil, were analyzed using gas chromatography-mass spectrometry. The acaricidal activity of these oils as well as 11 selected components and blends were evaluated in fumigation and residual contact tests against the two-spotted spider mite (Tetranychus urticae). Sixty-seven constituents were identified, totaling 97.3 ± 0.3% and 97.8 ± 0.5% of the oils from O. duckei and O. glomerata, respectively. Sesquiterpene was the dominant class. The compounds β-caryophyllene (18.6 ± 0.1%) and aromadendrene (17.3 ± 0.6%) were the main constituents of the oils from O. duckei and O. glomerata, respectively. Acaricidal action varied depending on the method employed, species and chemical nature of the selected constituents. The mites were susceptible to the oils and chemical constituents using the fumigation method. The O. duckei oil was respectively 2.5-fold and 1.5-fold more toxic than the O. glomerata oil using the fumigation and residual contact methods. Among the selected constituents, β-caryophyllene was the most toxic, independently of the method employed. The individual toxicity of the selected compounds and their blends as well as the role of these constituents in the overall toxicity of the essential oils are also discussed |
| Disciplinas: | Química, Biología |
| Palabras clave: | Fitoquímica, Angiospermas, Quelicerados, Aceites esenciales, Terpenos, Beta-cariofileno, Actividad biológica, Acaricidas, Ocotea, Tetranychus urticae |
| Keyword: | Chemistry, Biology, Phytochemistry, Angiosperms, Chelicerata, Essential oils, Terpenes, Beta-caryophyllene, Biological activity, Acaricides, Ocotea, Tetranychus urticae |
| Texto completo: | Texto completo (Ver HTML) |
