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The large depolarizing responses of all types of cell induced by 1 M NaCl were accompanied by a large decrease in the membrane resistance and had the same reversal potential of approximately +5 mV. The large depolarizing responses of all cell types for 1 mM acetic acid were accompanied by a small decrease in the membrane resistance. The small depolarizing responses of all cell types for 10 mM quinine--HCl (Q-HCl) were accompanied by an increase in the membrane resistance, but those for 1 M sucrose were accompanied by a decrease in the membrane resistance. The reversal potential of sucrose responses in all cell types were approximately +12 mV. Taken together, depolarizing responses of Ia, Ib, and II/III cells for each taste stimulus are likely to be generated by the same mechanisms. 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Electrical properties and gustatory responses of various taste disk cells of frog fungiform papillae
http://hdl.handle.net/10069/21474
http://hdl.handle.net/10069/214748361bf47-fed6-46b3-941f-228cb2ebbf81
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CheSen33_371_text&table.pdf (143.5 kB)
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CheSen33_371_figures.pdf (392.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-04-06 | |||||
タイトル | ||||||
タイトル | Electrical properties and gustatory responses of various taste disk cells of frog fungiform papillae | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | basic taste stimuli | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fungiform papilla | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gustatory transduction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | taste disk cell | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | taste response profile | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Sato, Toshihide
× Sato, Toshihide× Nishishita, Kazuhisa× Okada, Yukio× Toda, Kazuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We compared the electrical properties and gustatory response profiles of types Ia cell (mucus cell), Ib cell (wing cell), and II/III cell (receptor cell) in the taste disks of the frog fungiform papillae. The large depolarizing responses of all types of cell induced by 1 M NaCl were accompanied by a large decrease in the membrane resistance and had the same reversal potential of approximately +5 mV. The large depolarizing responses of all cell types for 1 mM acetic acid were accompanied by a small decrease in the membrane resistance. The small depolarizing responses of all cell types for 10 mM quinine--HCl (Q-HCl) were accompanied by an increase in the membrane resistance, but those for 1 M sucrose were accompanied by a decrease in the membrane resistance. The reversal potential of sucrose responses in all cell types were approximately +12 mV. Taken together, depolarizing responses of Ia, Ib, and II/III cells for each taste stimulus are likely to be generated by the same mechanisms. Gustatory depolarizing response profiles indicated that 1) each of Ia, Ib, and II/III cells responded 100% to 1 M NaCl and 1 mM acetic acid with depolarizing responses, 2) approximately 50% of each cell type responded to 10 mM Q-HCl with depolarizations, and 3) each approximately 40% of Ia and Ib cells and approximately 90% of II/III cells responded to 1 M sucrose with depolarizations. These results suggest that the receptor molecules for NaCl, acid, and Q-HCl stimuli are equivalently distributed on all cell types, but the receptor molecules for sugar stimuli are richer on II/III cells than on Ia and Ib cells. Type III cells having afferent synapses may play a main role in gustatory transduction and transmission. | |||||
書誌情報 |
Chemical Senses 巻 33, 号 4, p. 371-378, 発行日 2008-04 |
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出版者 | ||||||
出版者 | Oxford University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0379864X | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1464-3553 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00142441 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/chemse/bjn001 | |||||
権利 | ||||||
権利情報 | Copyright (c) 2008 Oxford University Press | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chemical Senses, 33(4), pp.371-378; 2008 |