Discrepancy between antennal and behavioral responses for enantiomers of alpha-pinene: electrophysiology and behavior of Helicoverpa armigera (Lepidoptera).

摘要: The ability of adult cotton bollworm, Helicoverpa armigera (Hubner), to distinguish and respond enantiomers α-pinene was investigated with electrophysiological behavioral methods. Electroantennogram recordings using mixtures the at saturating dose levels, single unit electrophysiology, indicated that two forms were detected by same receptor neurons. relative size electroantennogram response higher for (−) compared (+) form, indicating greater affinity form level dendrites. Behavioral assays moths discriminate between, α-pinene. Moths no odor conditioning showed an innate preference (+)-α-pinene. This displayed naive not significantly different from preferences conditioned on However, we found a significant difference in between enantiomer (+)-α-pinene, showing learning plays important role response. are less able than odors (e.g., phenylacetaldehyde versus (−)-α-pinene) experiments. relevance discrimination host plant choice is discussed.