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Updated: Oct 10, 2026
Electrophysiological Measurements from a Moth Olfactory System
Published on: March 29, 2011
Female Attacus atlas respond to pheromones of Antheraea polyphemus: a comparative electrophysiological and
1Max-Planck Institut für Verhaltensphysiologie, D-82319 Seewiesen, Germany. maida@mpi-seewiesen.mpg.de
Abstract:
Female Attacus atlas respond electrophysiologically to both of the Antheraea polyphemus pheromone components (E,Z)-6,11-hexadecadienyl acetate and (E,Z)-6,11-hexadecadienal. Moreover, they possess a pheromone-binding protein (PBP) and general odorant-binding proteins (GOBPs), as well as a pheromone-degrading sensillar esterase and aldehyde oxidase enzymes. They show no electroantennogram responses to their own gland extract. In contrast, female A. polyphemus do not respond to their own or to A. atlas pheromone. Male A. atlas do not detect any of the A. polyphemus compounds but only the conspecific female gland extracts. Both male A. atlas and female A. polyphemus possess PBP and GOBP but lack the pheromone-degrading esterases of male Antheraea. The results indicate that the two species use quite distinct classes of chemicals as pheromones. In spite of this, the N-terminal amino acid sequences of the PBPs show homology of 68%.
