SCHNUCH, M and HANSEN, K (1992) RESPONSES OF A FLYS SALT RECEPTOR TO LACTOSE AND TO DILUTE NACL SOLUTIONS. JOURNAL OF INSECT PHYSIOLOGY, 38 (9). pp. 671-680. ISSN 0022-1910, 1879-1611
Full text not available from this repository.Abstract
The effects of lactose and of dilute NaCl solutions on labellar taste hairs of the blowfly Protophormia terraenovae were investigated electrophysiologically with the tip recording technique: the salt receptor, but not the sugar receptor is stimulated by lactose. This stimulation depends both on lactose and on NaCl concentration. The maximal frequencies obtained with lactose are similar to those in response to 200 mM NaCl. The observed latencies suggest that lactose has also a slight inhibitory effect. The salt receptor discharges only one to six spikes during the first 300 ms of stimulation with NaCl in the concentration range between 10 and 150 mM. This response displays little concentration dependence but does not represent spontaneous activity. NaCl inhibits the water receptor more strongly than lactose, when applied in concentrations which elicit an equal number of spikes from the salt receptor. The results are discussed with respect to the properties of the extracellular milieu near the tips of the dendrites. The assumption of a lactose site in the salt receptor membrane is a plausible but not the only possible explanation for the stimulatory effect of lactose.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BLOWFLY CALLIPHORA-VICINA; PROTOPHORMIA-TERRAENOVAE; WATER RECEPTOR; TASTE QUALITY; LABELLAR; BLOWFLY; CHEMORECEPTION; SALT RECEPTOR; LACTOSE; NACL |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54406 |
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