Actividad Insecticida de Rhamnaceas Chilenas: Talguenea quinquenervis (Gill. et Hook.

Resumen / abstract: 

La actividad insecticida de diferentes extractos obtenidos desde la parte aérea de Talguenea quinquenervis (Gill. ex Hook) se evaluó utilizando bioensayos con larvas de Drosophila melanogaster. Todos los extractos ensayados presentan actividad insecticida, siendo las mas activas aquellas fracciones que contienen alcaloides. Desde la fracción activa fue posible aislar e identificar tres conocidos alcaloides, coclaurina, armepavina y N-metilcoclaurina.

 

Insecticidal activity of Chilean Rhamnaceae: Talguenea quinquenervis (Gill. et Hook).

The insecticidal activity of extracts obtained from aerial parts of Talguenea quinquenervis (Gill. et Hook) were evaluated using bioassay against larvae of Drosophila melanogaster. All extracts tested had insecticidal activity, the most active being those that contain alkaloids. From the most active fraction, it was possible to identify the known alkaloids coclaurine, armepavine and N-methylcoclaurine.

Keywords: chilean Rhamnaceae; Talguenea; insecticidal activity; alkaloids.