V2EX phytochrome

Phytochrome

释义 Definition

Phytochrome(植物色素体/植物光敏色素):植物体内一种感受红光与远红光的光受体蛋白,帮助植物调控发芽、开花、避荫反应(徒长)、昼夜节律等生长发育过程。(在不同学科或语境中也可泛指一类相关光受体蛋白。)

发音 Pronunciation

/fatokrom/

例句 Examples

Phytochrome helps seeds know when to germinate.
植物光敏色素帮助种子“判断”何时发芽。

In dense forests, changes in red and far-red light shift phytochrome signaling, triggering shade-avoidance growth.
在密林中,红光与远红光比例的变化会改变植物光敏色素的信号传导,从而引发植物的避荫生长。

词源 Etymology

phyto- 来自希腊语 phyton(“植物”),**-chrome** 来自希腊语 chroma(“颜色”)。合起来字面意思接近“植物的颜色/色素相关物”,指一种与光(尤其是红光/远红光)感知与反应密切相关的植物光受体系统。

相关词 Related Words

文学与著作 Literary Works

  • Taiz & Zeiger, Plant Physiology and Development(植物生理学经典教材,讨论 phytochrome 在光形态建成中的作用)
  • Hopkins & Hüner, Introduction to Plant Physiology(介绍植物光受体系统与 phytochrome 信号)
  • Salisbury & Ross, Plant Physiology(常见教材版本中包含 phytochrome 与光周期反应相关章节)
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