(1R,2S,6R)-Papayanol, Aggregation Pheromone of the Guava Weevil, Conotrachelus psidii

AUTOR(ES)

Palacio-Cortés, Angela M., Valente, Fabricio, Saad, Emir B., Tröger, Armin, Francke, Wittko, Zarbin, Paulo H. G.

FONTE

J. Braz. Chem. Soc.

DATA DE PUBLICAÇÃO

2015-04

RESUMO

Comparative GC/MS analysis of airborne volatiles produced by males and females of the guava weevil Conotrachelus psidii (Coleoptera: Curculionidae: Molytinae) showed the presence of a malespecific electroantennographically active compound identified as (1R,2S,6R)-2-hydroxymethyl-2,6- dimethyl-3-oxabicyclo[4.2.0]octane (papayanol). Release of this compound was dependent on the photoperiod, taking place primarily during the scotophase, with a maximum release between 2 and 6 h after the onset of the scotophase. Y-tube olfactometer bioassays revealed a strong attractiveness of the papayanol to male and female weevils considering the presence of the plant volatiles.

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