Abstract
Insects have an enormous impact on global public health as disease vectors and as agricultural enablers as well as pests and olfaction is an important sensory input to their behavior. As such it is of great value to understand the interplay of the molecular components of the olfactory system which, in addition to fostering a better understanding of insect neurobiology, may ultimately aid in devising novel intervention strategies to reduce disease transmission or crop damage. Since the first discovery of odorant receptors in vertebrates over a decade ago, much of our view on how the insect olfactory system might work has been derived from observations made in vertebrates and other invertebrates, such as lobsters or nematodes. Together with the advantages of a wide range of genetic tools, the identification of the first insect odorant receptors in Drosophila melanogaster in 1999 paved the way for rapid progress in unraveling the question of how olfactory signal transduction and processing occurs in the fruitfly. This review intends to summarize much of this progress and to point out some areas where advances can be expected in the near future.
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Abbreviations
- AL:
-
Antennal lobe
- CNG:
-
Cyclic nucleotide gated
- CSP:
-
Chemosensory protein
- DOR:
-
Drosophila odorant receptor
- GRCR:
-
G protein coupled receptor
- GRK:
-
G protein coupled receptor kinases
- LN:
-
Local neuron
- OBP:
-
Odorant binding protein
- ODE:
-
Odor degrading enzymes
- OR:
-
Odorant receptor
- ORN:
-
Olfactory receptor neuron
- PBP:
-
Pheromone binding protein
- PN:
-
Projection neuron
- PBPRP:
-
Pheromone binding protein–related protein
- SNMP:
-
Sensory neuron membrane protein
- VA:
-
Vaccenyl acetate
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Acknowledgements
We wish to especially thank Dr. Jonathan Bohbot for expert illustrations as well as thank Dr. H.W. Kwon, Jason Pitts and H. Wegner for critical reading of the manuscript. This work received financial support from the NIH (DC04692/AI56402 to L.J.Z) and through a Max Kade Post-Doctoral Research Exchange grant (to M. R.).
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Rützler, M., Zwiebel, L. Molecular biology of insect olfaction:recent progress and conceptual models. J Comp Physiol A 191, 777–790 (2005). https://doi.org/10.1007/s00359-005-0044-y
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DOI: https://doi.org/10.1007/s00359-005-0044-y