Abstract
1. 1. The generative mechanism of the acid-induced receptor potential in frog taste cells was re-examined with micro-electrodes. 2. 2. The amplitude of receptor potentials in a taste cell induced by 1 mM acetic acid increased as the concentration of Ca 2+, Sr 2+ and B 2+ on the tongue surface was increased. 3. 3. The amplitude of the acid-induced receptor potential was inhibited by about 40% by a proton pump blocker DCCD ( N,N′-dicyclohexylcarbodiimide) added to superficial normal saline. 4. 4. It is concluded that most of the acid-induced response in a frog taste cell was generated by current carried through proton-gated C 2+ channel of the apical receptive membrane. The remaining part of the acid response was generated by current carried through a DCCD-sensitive proton transporter of the receptive membrane.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Comparative Biochemistry and Physiology -- Part A: Physiology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
