V2EX abscisic

Abscisic

释义 Definition

abscisic(多用于 abscisic acid, ABA)指“脱落酸的”:一种植物激素,常与抗旱应答、气孔关闭、种子休眠与逆境压力反应等过程相关。(该词主要作形容词使用,常见于生物学语境。)

发音 Pronunciation

/bszk/

例句 Examples

Abscisic acid helps plants survive drought.
脱落酸有助于植物在干旱中存活。

Under water stress, abscisic signaling triggers stomatal closure and alters gene expression to reduce water loss.
在缺水胁迫下,脱落酸相关信号会触发气孔关闭,并改变基因表达以减少水分流失。

词源 Etymology

abscisic 来自 abscisic acid(脱落酸) 的命名。该名称与 abscission(脱落,如叶片脱落)有关,早期研究认为它与器官脱落关系密切,因此以此构词并加上形容词后缀 -ic,表示“……的”。后来发现其功能远不止“脱落”,在逆境应答与种子发育中尤为重要。

相关词 Related Words

文献与著作 Literary Works

  • Plant Physiology and Development(Taiz, Zeiger 等)
  • Biochemistry & Molecular Biology of Plants(Buchanan, Gruissem, Jones 等)
  • Annual Review of Plant Biology(多篇综述中常出现 abscisic/ABA 相关表述)
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