Olfactory responses to the sex pheromone component and its behavioural inhibitor in the male cigarette beetle, Lasioderma serricorne
1992
Okada, K. | Watanabe, A. | Mori, M. | Shimazaki, K. | Chuman, T. | Mochizuki, F. | Shibuya, T.
Electroantennogram and single sensillum recordings were performed on the male cigarette beetle, Lasioderma serricorne, antennae. Strong antennal responses were elicited by not only natural sex pheromone component (4S,5S,7S)-serricornin (SSS-serricornin) but also non-natural behavioural inhibitor, (4S,5S,7R)-serricornin (SSR-serricornin). In the case of mixture application of the SSS- and SSR-serricornin, integrated electroantennogram responses were observed. Single sensillum recording from mate flagella sensilla showed that the majority of basiconic type sensilla responded to the behavioural inhibitor as well as to the sex pheromone. However, a few of them responded only to the inhibitor. The behavioural inhibitory action of SSR-serricornin toward the SSS-serricornin results from central integration of the information from separate receptor cells rather than blockage at the peripheral receptors.
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