V2EX phototransduction

Phototransduction

释义 Definition

光转导;光信号转导:指在视觉系统中,光刺激被感受器细胞(主要是视杆细胞与视锥细胞)转化为电信号的一系列生物化学与电生理过程。(也可泛指某些生物中把光转换为细胞信号的机制。)

发音 Pronunciation (IPA)

/fototrnzdkn/

例句 Examples

Light triggers phototransduction in the retina.
光会在视网膜中触发光转导过程。

Phototransduction begins when photons change the shape of a pigment molecule, setting off a cascade that ultimately alters the cell’s electrical activity.
光转导始于光子改变色素分子构型,从而引发级联反应,最终改变细胞的电活动。

词源 Etymology

phototransduction 由 **photo-**(“光”,源自希腊语 *phōs/phōt-*)与 transduction(“转导/传导”,来自拉丁语 trans- “跨越” + ducere “引导”)构成。整体字面义为“把光引导/转换成另一种信号”,在生物学中专指将光信息转换为神经可用信号的过程。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Principles of Neural Science(Eric R. Kandel 等):在视觉系统章节中讨论视网膜与phototransduction的基本机制。
  • Molecular Biology of the Cell(Alberts 等):在细胞信号传导与感知系统相关内容中提及phototransduction作为典型信号转导实例。
  • The Retina: An Approachable Part of the Brain(John E. Dowling):系统介绍视网膜结构与视觉信号处理,涵盖phototransduction过程。
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