V2EX thigmotropic

Thigmotropic

Definition / 释义

(植物学)触向性的;对触碰刺激产生定向生长或转向反应的。
常用来描述卷须、攀援茎等在接触支撑物后发生弯曲、缠绕的生长方式。(名词形式常见为 thigmotropism “触向性”)

Pronunciation / 发音

/θmtrpk/
/θmtrpk/

Examples / 例句

The vine shows thigmotropic growth when it touches a pole.
藤蔓触碰到杆子时会表现出触向性生长。

In many climbers, thigmotropic responses help the plant detect a support and redirect growth, improving access to light.
在许多攀援植物中,触向性反应帮助植物“探测”支撑物并改变生长方向,从而更好地获取光照。

Etymology / 词源

来自希腊语词根 thigma(意为“触碰”)+ -tropic(来自 tropos,“转向、转变”)。整体含义就是“因触碰而发生转向/定向生长的”。

Related Words / 相关词

Notable Works / 文献与作品

  • Plant Physiology and Development(Taiz 等):在“tropisms/触向性”相关章节中常见该词及其派生词
  • Biology of Plants(Raven 等):讲解植物向性(含触向性)时常出现 thigmotropic/thigmotropism
  • Campbell Biology:植物响应外界刺激(含触碰)的小节中常见相关术语
  • 学术期刊论文(如涉及卷须缠绕、机械刺激信号传导的研究)中,常用 thigmotropic 描述“由触碰引发的定向生长”现象
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