Journal of comparative physiology

, Volume 96, Issue 3, pp 223–236

Temperature responses of antennal receptors of the mosquito,Aedes aegypti

  • Edward E. Davis
  • Phillip G. Sokolove
Article

DOI: 10.1007/BF00612696

Cite this article as:
Davis, E.E. & Sokolove, P.G. J. Comp. Physiol. (1975) 96: 223. doi:10.1007/BF00612696

Summary

  1. 1.

    A pair of thermoreceptor units was identified in the sensilla coeloconica at the tip of the antennae on the mosquito,Aedes aegypti.

     
  2. 2.

    One thermoreceptor was warm-sensitive and responded with a phasic-tonic increase in spike frequency to sudden increases in temperature. The second thermoreceptor was coldsensitive, responding with a phasic-tonic increase in spike activity to sudden decreases in temperature.

     
  3. 3.

    The mean tonic spike activity of both the cold and warm receptors increased with increasing temperature to a peak of 30 imp/sec at 26‡ C for the cold receptor and 35 imp/sec at 28.5‡ C for the warm receptor. The tonic activity declined as the temperature was increased further. The maximum phasic sensitivity was observed with small temperature changes (δ T = ± 0.2‡C). This was 136 imp/sec/‡C temperature drop in the cold receptor and 130 imp/ sec/‡ C rise in the warm receptor.

     
  4. 4.

    The importance of temperature in the host-seeking and “attack” behavior of the mosquito is discussed.

     

Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • Edward E. Davis
    • 1
  • Phillip G. Sokolove
    • 2
  1. 1.Neurophysiology ProgramStanford Research InstituteMenlo ParkUSA
  2. 2.Department of Biological SciencesStanford UniversityStanfordUSA
  3. 3.Department of Biological SciencesUniversity of Maryland Baltimore CountyCatonsvilleUSA

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