Summary
The deposition rate of 2 tritiated odorants onto insect antennae of different sizes and shapes is linearly proportional to the product of odorant concentration times the antennal surface area. This result challenges an assumption in a commonly accepted hypothesis that sensillar shape affects odorant deposition and that a single odorant molecule can initiate an action potential in a receptor cell. Consequently the 1-molecule-1-spike hypothesis bears reinvestigation.
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Mankin, R.W., Mayer, M.S. The insect antenna is not a molecular sieve. Experientia 40, 1251–1252 (1984). https://doi.org/10.1007/BF01946658
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DOI: https://doi.org/10.1007/BF01946658