Electrophysiological activity of labellar and tarsal chemosensilla of Hybomitra lasiophtalma (Macquart) to stimulation with NaCl and various sugars.
The responses from labellar and tarsal chemosensilla of Hybomitra lasiophtalma to stimulation with NaCl or sugars (sucrose, glucose, fructose, galactose) were recorded. Results showed that 4 chemosensory units were located in each chemosensillum. Among these, a water-, a salt-, and a sugar-sensitive unit were detectable. NaCl (higher than 50 mM) as well as sucrose (higher than 100 mM) sensitivity thresholds were determined; sucrose and galactose proved to be more active as stimuli than fructose and glucose.
D000818:Animals; D002241:Carbohydrates / Q000494:pharmacology*; D002628:Chemoreceptor Cells / Q000187:drug effects / Q000502:physiology*; D004175:Diptera / Q000502:physiology*; D004558:Electric Stimulation; D004594:Electrophysiology; D005260:Female; D005632:Fructose / Q000494:pharmacology; D005690:Galactose / Q000494:pharmacology; D005947:Glucose / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology*; D013395:Sucrose / Q000494:pharmacology
D002241:Carbohydrates; D005632:Fructose; D012965:Sodium Chloride; D013395:Sucrose; D005947:Glucose; D005690:Galactose