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Journal of comparative physiology

, Volume 96, Issue 3, pp 223–236 | Cite as

Temperature responses of antennal receptors of the mosquito,Aedes aegypti

  • Edward E. Davis
  • Phillip G. Sokolove
Article

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.

     

Keywords

Temperature Change Temperature Response Sudden Increase Temperature Drop Spike Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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

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