Abstract
Behavioral responses to labellar stimulation with 19 L-amino acids were predicted on the basis of electrophysiological responses of largest labellar hairs. With the exceptions alanine, aspartic and glutamic acids, and valine tests of these predictions confirmed that Phormia can discriminate amino acids, and that these acids may be grouped according to their effects. Electrophysiological investigation of the four exceptions was repeated and results were consistent with the behavioral data. In particular, these acids elicited previously unreported responses from the salt receptor. The discrepancies between this and earlier studies may be explainable, in part, on methodological grounds. There was evidence for response differences among hairs of different sizes and among the largest labellar hairs themselves. The significance of amino acid discrimination for the problem of protein recognition can only be speculated upon until more complete electrophysiological and nutritional information is available.
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Selected References
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- Chadwick L. E., Dethier V. G. THE RELATIONSHIP BETWEEN CHEMICAL STRUCTURE AND THE RESPONSE OF BLOWFLIES TO TARSAL STIMULATION BY ALIPHATIC ACIDS. J Gen Physiol. 1947 Jan 20;30(3):255–262. doi: 10.1085/jgp.30.3.255. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DETHIER V. G., CHADWICK L. E. An analysis of the relationship between solubility and stimulating effect in tarsal chemoreception. J Gen Physiol. 1950 May 20;33(5):589–599. doi: 10.1085/jgp.33.5.589. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DETHIER V. G., CHADWICK L. E. The stimulating effect of glycols and their polymers on the tarsal receptors of blowflies. J Gen Physiol. 1948 Nov;32(2):139–151. doi: 10.1085/jgp.32.2.139. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dethier V. G., Hanson F. E. Electrophysiological responses of the chemoreceptors of the blowfly to sodium salts of fatty acids. Proc Natl Acad Sci U S A. 1968 Aug;60(4):1296–1303. doi: 10.1073/pnas.60.4.1296. [DOI] [PMC free article] [PubMed] [Google Scholar]
- EVANS D. R., MELLON D., Jr Stimulation of a primary taste receptor by salts. J Gen Physiol. 1962 Mar;45:651–661. doi: 10.1085/jgp.45.4.651. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gillary H. L. Stimulation of the salt receptor of the blowfly. I. NaCl. J Gen Physiol. 1966 Nov;50(2):337–350. doi: 10.1085/jgp.50.2.337. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HODGSON E. S., ROEDER K. D. Electrophysiological studies of arthropod chemoreception. I. General properties of the labellar chemoreceptors of Diptera. J Cell Physiol. 1956 Aug;48(1):51–75. doi: 10.1002/jcp.1030480104. [DOI] [PubMed] [Google Scholar]
- MORITA H. Initiation of spike potentials in contact chemosensory hairs of insects. III. D.C. stimulation and generator potential of labellar chemoreceptor of calliphora. J Cell Comp Physiol. 1959 Oct;54:189–204. doi: 10.1002/jcp.1030540209. [DOI] [PubMed] [Google Scholar]
- Morita H., Shiraishi A. Stimulation of the labellar sugar receptor of the fleshfly by mono- and disaccharides. J Gen Physiol. 1968 Oct;52(4):559–583. doi: 10.1085/jgp.52.4.559. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Omand E. A peripheral sensory basis for behavioral regulation. Comp Biochem Physiol A Comp Physiol. 1971 Feb 1;38(2):265–287. doi: 10.1016/0300-9629(71)90053-3. [DOI] [PubMed] [Google Scholar]
- Omand E., Dethier V. G. An electrophysiological analysis of the action of carbohydrates on the sugar receptor of the blowfly. Proc Natl Acad Sci U S A. 1969 Jan;62(1):136–143. doi: 10.1073/pnas.62.1.136. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rees C. J. The effect of aqueous solutions of some 1:1 electrolytes on the electrical response of the type 1 ("salt") chemoreceptor cell in the labella of Phormia. J Insect Physiol. 1968 Sep;14(9):1331–1364. doi: 10.1016/0022-1910(68)90026-7. [DOI] [PubMed] [Google Scholar]
- Robbins W. E., Thompson M. J., Yamamoto R. T., Shortino T. J. Feeding Stimulants for the Female House Fly, Musca domestica Linneaus. Science. 1965 Feb 5;147(3658):628–630. doi: 10.1126/science.147.3658.628. [DOI] [PubMed] [Google Scholar]
- Shiraishi A., Kuwabara M. The effects of amino acids on the labellar hair chemosensory cells of the fly. J Gen Physiol. 1970 Dec;56(6):768–782. doi: 10.1085/jgp.56.6.768. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shiraishi A., Morita H. The effects of pH on the labellar sugar receptor of the fleshfly. J Gen Physiol. 1969 Apr;53(4):450–470. doi: 10.1085/jgp.53.4.450. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Steinhardt R. A., Morita H., Hodgson E. S. Mode of action of straight chain hydrocarbons on primary chemoreceptors of the blowfly, Phormia regina. J Cell Physiol. 1966 Feb;67(1):53–62. doi: 10.1002/jcp.1040670107. [DOI] [PubMed] [Google Scholar]
- Wilczek M. The distribution and neuroanatomy of the labellar sense organs of the blowfly Phormia regina Meigen. J Morphol. 1967 Jul;122(3):175–201. doi: 10.1002/jmor.1051220303. [DOI] [PubMed] [Google Scholar]