V2EX auxin

Auxin

定义 Definition

auxin(生长素):植物体内一类重要的植物激素,主要促进细胞伸长、调控向光性/向地性、生根、维持顶端优势,并参与果实发育等过程。常见的天然生长素是 IAA(吲哚-3-乙酸)

发音 Pronunciation

/ksn/

例句 Examples

Auxin helps plants bend toward light.
生长素帮助植物朝光的方向弯曲。

By altering auxin distribution, the plant regulates root growth and adapts to uneven soil moisture.
通过改变生长素的分布,植物调控根的生长,并适应土壤水分不均的环境。

词源 Etymology

auxin 来自希腊语 auxein(意为“增长、增大”)。该词在植物生理学中被用来指代“促进生长”的物质,后来发展为对一类植物激素的统称。

相关词 Related Words

文学与著作 Literary Works

  • Plant Physiology(Taiz & Zeiger 等):在植物激素章节系统讲解 auxin 的合成、运输与作用机制。
  • Biochemistry & Molecular Biology of Plants:讨论 auxin 信号转导及其与基因表达调控的关系。
  • **Biology (Campbell Biology)**:在植物生长与响应环境的部分介绍 auxin 与向光性等经典实验。
  • Frits Went (1926) 关于生长素的经典论文(如 On growth-accelerating substances in the coleoptile of Avena sativa 等相关研究):早期实验奠定了 auxin 概念与研究方法。
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