V2EX thigmotropism

Thigmotropism

释义 Definition

触向性:植物因接触或摩擦等机械刺激而产生的定向生长反应。常见于藤本植物卷须绕物生长。(也有其他类型的向性,但此词特指“触碰引发的向性”。)

发音 Pronunciation

/θmtropzm/

例句 Examples

The vine shows thigmotropism when it wraps around a pole.
藤蔓在缠绕杆子时表现出触向性。

Thigmotropism allows climbing plants to sense nearby supports and grow in a direction that increases their chances of reaching sunlight.
触向性使攀援植物能够感知附近的支撑物,并朝更有利于获得阳光的方向生长,从而提高其生存机会。

词源 Etymology

来自希腊语词根:**thigmo-**(表示“触碰、接触”,源于 thig “触摸”)+ -tropism(表示“转向、定向反应”,源于 tropos “转向”)。合起来字面意思是“因触碰而转向的生长反应”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Charles Darwin, The Power of Movement in Plants(《植物运动的力量》):讨论植物对刺激的运动与定向生长现象,涉及与触向性密切相关的观察与实验。
  • Plant Physiology(《植物生理学》教材与学术著作常见标题):在“植物向性/信号转导”章节中常用该术语说明接触刺激引发的生长反应。
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