V2EX microtubule-organizing-center

Microtubule-Organizing-Center

释义 Definition

微管组织中心(常缩写 MTOC):细胞内起始并组织微管生长的结构区域,负责微管的成核(nucleation)与排列,从而参与细胞形态维持、细胞内运输以及有丝分裂时纺锤体的形成。动物细胞中最典型的MTOC是中心体(centrosome);某些细胞中也可由基底体(basal body)等结构发挥类似作用。

发音 Pronunciation (IPA)

/makrotubjul rnaz sntr/

例句 Examples

The centrosome is the main microtubule-organizing center in many animal cells.
中心体是许多动物细胞中的主要微管组织中心。

During mitosis, the microtubule-organizing center helps build the spindle that separates chromosomes accurately.
在有丝分裂过程中,微管组织中心有助于建立纺锤体,从而精确分离染色体。

词源 Etymology

该术语由三部分构成:micro-(“微小的”)+ tubule(“小管;微管”)+ organizing center(“组织/组织安排的中心”)。字面意思是“组织微管的中心”,强调其功能:在细胞中作为微管网络的“起点与枢纽”。在细胞生物学文献中也常以缩写 MTOC 出现。

相关词 Related Words

文学/著作中的出现 Literary Works

  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):在细胞骨架与有丝分裂章节中频繁讨论MTOC与纺锤体形成。
  • Essential Cell Biology(Alberts 等,《基础细胞生物学》):以教学方式介绍微管从MTOC成核并形成细胞内微管网络。
  • Molecular Cell Biology(Lodish 等,《分子细胞生物学》):在微管动态与细胞分裂部分使用“microtubule-organizing center/MTOC”术语。
  • The Cell: A Molecular Approach(Cooper & Hausman,《细胞:分子方法》):在中心体、微管与细胞周期相关内容中出现该词。
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