(IMAGE)

Max Planck Institute for Chemical Ecology

Caption

Functional calcium imaging in the antennal lobes of a female Manduca sexta moth: Different activation patterns (red spots) can be observed depending on whether the moths respond to (Z)-3-hexenyl acetate or (E)-2-hexenyl acetate. The odor of a (Z)-3-isomer or a (Z)-3 / (E)-2 ratio in favor of a (Z)-3-isomer -- according to the odor bouquet of an unattacked plant -- guides ovipositing Manduca females to plants that have yet been spared by herbivorous caterpillars.

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Copyright: Anna Späthe, Max Planck Institute for Chemical Ecology

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