Gnathotrichus sulcatus: synergistic response to enantiomers of the aggregation pheromone sulcatol

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Science  28 May 1976:
Vol. 192, Issue 4242, pp. 894-896
DOI: 10.1126/science.1273573


In laboratory and field bioassays, Gnathotrichus sulcatus responded to sulcatol (6-methyl-5-hepten-2-ol) only when both enantiomers were present. Response was greater to racemic sulcatol than to a mixture (65 : 35) of S-(+) and R-(-) enantiomers, the naturally occurring isomeric ratio. Enantiomer-specific active sites on receptor proteins in the same or different cells are implicated.