Cited by 183Neurobiology and Insect Physiology ResearchOlfactory and Sensory Function StudiesInsect Pheromone Research and Control

Molecular vibration-sensing component in Drosophila melanogaster olfaction

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Franco, Maria Isabel, Turin, Luca, Mershin, Andreas, Skoulakis, Efthimios M. C.·2011·Proceedings of the National Academy of Sciences

Abstract

A common explanation of molecular recognition by the olfactory system posits that receptors recognize the structure or shape of the odorant molecule. We performed a rigorous test of shape recognition by replacing hydrogen with deuterium in odorants and asking whether Drosophila melanogaster can distinguish these identically shaped isotopes. We report that flies not only differentiate between isotopic odorants, but can be conditioned to selectively avoid the common or the deuterated isotope. Furthermore, flies trained to discriminate against the normal or deuterated isotopes of a compound, selectively avoid the corresponding isotope of a different odorant. Finally, flies trained to avoid a deuterated compound exhibit selective aversion to an unrelated molecule with a vibrational mode in the energy range of the carbon–deuterium stretch. These findings are inconsistent with a shape-only model for smell, and instead support the existence of a molecular vibration-sensing component to olfactory reception.

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Crossref · 10.1073/pnas.1012293108

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  • Theoretical work suggests that molecular vibration plays some role in ligand function for the histamine receptor.

    “In contrast to this, theoretical work comparing the structure-activity/vibration-activity relationship of the histamine receptor and its various ligands suggests that molecular vibration does play some role in ligand function.”

    From Quantum effects in the brain: A review (2020) · cites this paper as [119]

  • Molecules with similar vibrational frequencies have been observed to elicit similar reactions from fruit flies in spite of being unrelated chemically.

    “Furthermore, molecules with similar vibrational frequencies have been observed to elicit similar reactions from fruit flies in spite of being unrelated chemically [111].”

    From The future of quantum biology (2018) · cites this paper as [111]

  • Substitution with deuterium of hydrogen results in an odour change despite the fact that the two molecules have the same shape.

    “For example, the substitution with deuterium of hydrogen results in an odour change despite the fact that the two molecules have the same shape (figure 4) [111].”

    From The future of quantum biology (2018) · cites this paper as [111]

  • Experiments with fruit flies have indicated that shape and size of odourants are insufficient for detection.

    “In support of the theory, experiments with fruit flies have indicated that shape and size of odourants are insufficient for detection.”

    From The future of quantum biology (2018) · cites this paper as [111]

  • Vibrational frequency might play a role in the detection of odourants.

    “This suggests that vibrational frequency might play a role in the detection of odourants[111].”

    From The future of quantum biology (2018) · cites this paper as [111]

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Authors
Franco, M. I., Turin, L., Mershin, A., & Skoulakis, E. M. C.
Affiliations
  • Alexander Fleming Biomedical Sciences Research Center (GR)
  • Massachusetts Institute of Technology (US)
Corresponding author
Skoulakis, Efthimios M. C.
Venue
Proceedings of the National Academy of Sciences
Published
2011-02-14
Volume
108
Issue
9
Pages
3797-3802
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2049498218
Cited by
183
References
43
Citations by year
2026: 8 · 2025: 5 · 2024: 5 · 2023: 6 · 2022: 7 · 2021: 7 · 2020: 12 · 2019: 7 · 2018: 11 · 2017: 19 · 2016: 19 · 2015: 18 · 2014: 16 · 2013: 10 · 2012: 17
FWCI
7.68
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Advanced Research Projects Agency
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect Pheromone Research and Control
Keywords
olfaction, Drosophila melanogaster, odorant recognition, deuteration, vibrational modes
MeSH terms
Animals, Conditioning, Classical, Cues, Deuterium, Discrimination, Psychological, Drosophila melanogaster, Sensation, Smell, Vibration

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