Water response of frog olfactory system is induced by a decrease in osmotic pressure.
The frog olfactory response to deionized water (water response) was recorded from the olfactory bulb. The water response was suppressed by both electrolytes and non-electrolytes as a function of osmolarity, while the water response in taste cells was not suppressed by non-electrolytes. It was concluded that a decrease in osmotic pressure induced by application of deionized water is the origin of the water response in the frog olfactory system.
Sugawara
M
M
Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.
Kashiwayanagi
M
M
Kurihara
K
K
D000200:Action Potentials; D000818:Animals; D009475:Neurons, Afferent / Q000502:physiology*; D009830:Olfactory Bulb / Q000502:physiology*; D009994:Osmolar Concentration; D011892:Rana catesbeiana / Q000502:physiology*; D013649:Taste / Q000502:physiology*; D014882:Water-Electrolyte Balance