関連する実験動画
Updated: May 5, 2026

06:32
Electrophysiological Recording From Drosophila Labellar Taste Sensilla
Published on: February 27, 2014
16.1K
味に関する常識:哺乳類から昆虫まで
David A Yarmolinsky1, Charles S Zuker, Nicholas J P Ryba
1Department of Biochemistry and Molecular Biophysics, Howard Hughes Medical Institute, Columbia College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
Cell
|October 20, 2009
まとめ
味覚は,食品の化学物質を検出する特殊な細胞に依存しています. 異なる進化の経路にもかかわらず,脊椎動物も昆虫も,異なる味の質を識別するために,似たような"ラベル付けライン"システムを用いる.
科学分野:
- 神経科学は神経科学である.
- 感覚生物学 感覚生物学について
- ケモセンセーション・ケモセンセーション
背景:
- 味覚は,食べ物や飲み物を評価するための重要な化学感覚システムです.
- 味覚の経路は,脊椎動物と昆虫で独立して進化した.
- 異なる進化的起源にもかかわらず,味覚システムの組織とコーディングの論理には類似点がある.
研究 の 目的:
- 脊椎動物と昆虫の味覚の組織とコーディングロジックを探求する.
- 味覚における"ラベル付き線"理論を支持する証拠を調査する.
主な方法:
- 脊椎動物と昆虫の味覚に関する既存の科学文献のレビュー.
- 味覚受容体細胞に関連する分子および解剖学的データの分析.
- 味の質のコーディングを調査する研究の検討.
主要な成果:
- 脊椎動物と昆虫は,味覚システムの組織とコードロジックの明確な類似性を示しています.
- 説得力のある証拠は,味の質の調停のための"ラベル付きライン"モデルを支持します.
- 独特で分離された味覚受容体細胞集団は,特定の味の質をコードする.
結論:
- "ラベル付きライン"原則は,多様な種間の味の品質コード化のための保存されたメカニズムです.
- これらの保存された経路を理解することは,感覚処理の基本的な原理の洞察を提供します.
関連する概念動画
The Tongue and Taste Buds
34.7K
The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
34.7K
Gustation
43.5K
Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
43.5K
Introduction to Special Senses
6.7K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
6.7K
Taste Buds and Receptors
5.6K
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
5.6K
The Physiology of Taste
6.8K
The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
6.8K
Tactile and Chemical Senses
1.6K
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
1.6K

