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Sex pheromone perception in male pine sawflies, Neodiprion sertifer (Hymenoptera; Diprionidae).

Authors
  • Hansson, B S
  • Van der Pers, J N
  • Högberg, H E
  • Hedenström, E
  • Anderbrant, O
  • Löfqvist, J
Type
Published Article
Journal
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology
Publication Date
May 01, 1991
Volume
168
Issue
5
Pages
533–538
Identifiers
PMID: 1920154
Source
Medline
License
Unknown

Abstract

Electroantennographic and single sensillum recordings were performed on male pine sawfly, Neodiprion sertifer, antennae. Responses to the sex pheromone component (2S, 3S, 7S)- 3,7-dimethyl-2-pentadecenyl (diprionyl) acetate (SSS:OAc), to the behavioral inhibitor (2S, 3R, 7R)-diprionyl acetate (SRR:OAc), to the six other enantiomers of diprionyl acetate, and to the biosynthetic precursor diprionol were recorded. Responses to trans-perillenal, a monoterpene identified in female gland extracts and to (2S, 3S, 7S)-diprionyl propionate (SSS:OPr), a field attractant for N. sertifer and some related sawfly species were also recorded. EAG recordings demonstrated a high antennal sensitivity to SSS:OAc and to SSS:OPr. A somewhat lower response was elicited by SRR:OAc. Single sensillum recordings revealed 8-12 different cells firing in each sensillum, corresponding to the number of cells observed in earlier morphological investigations. Out of these cells all, except one, responded to SSS:OAc and to SSS:OPr. No differences in the response to the two components could be observed. The largest amplitude cell in each sensillum was specifically tuned to the behavioral antagonist, SRR:OAc. The pheromone perception system encountered in male pine sawflies thus differs clearly from that observed in moths.

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