NDLI: Conductance Change Associated with Receptor Potentials of Gustatory Cells in Rat

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Conductance Change Associated with Receptor Potentials of Gustatory Cells in Rat

Content Provider	Semantic Scholar
Author	Ozeki, Masahiro
Copyright Year	1971
Abstract	The electrical properties of gustatory cells and cells which do not respond to chemical stimuli in the taste bud of fungiform papillae in rats were studied by means of intracellular microelectrodes. Neither of these cell types showed spike electrogenesis. Gustatory cells showed a depolarization, the receptor potential, associated with an increase in the membrane conductance in response to NaCl, sucrose, and HCl, whereas quinine produced a decrease in the conductance together with an increase in the receptor potential magnitude. The reversal point of the receptor potential in response to NaCl or KCl was close to zero membrane potential, but in the case of quinine it was at a more negative potential level than the resting potential. From these results two receptive processes are postulated in the gustatory cell membrane. When the gustatory cells were stimulated for a long duration by concentrated NaCl or sucrose, receptor potentials showed adaptation with decrease in magnitude, but adaptation of the responses to HCl and quinine were hardly detected. Adaptation of the receptor potential was not correlated with conductance change.
Starting Page	688
Ending Page	699
Page Count	12
File Format	PDF HTM / HTML
PubMed reference number	5120394v1
Volume Number	58
Journal	The Journal of general physiology
Alternate Webpage(s)	http://images.biomedsearch.com/5120394/688.pdf?AWSAccessKeyId=AKIAIBOKHYOLP4MBMRGQ&Expires=1541289600&Signature=EAaOSDrDWV9xEDn2rt2wzcOH2ng%3D
Alternate Webpage(s)	http://jgp.rupress.org/content/jgp/58/6/688.full.pdf
Language	English
Access Restriction	Open
Subject Keyword	Acclimatization Arabic numeral 0 Bud - plant part Concentrate Dosage Form Hydrochloric Acid Membrane Potentials Plasma membrane Potassium Chloride Quinine Rest Sodium Chloride Structure of fungiform papillae of tongue Sucrose Taste Buds Tissue membrane receptor
Content Type	Text
Resource Type	Article

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