V2EX autolysin

Autolysin

Definition 定义

自溶素:一种由细菌或其他细胞自身产生的酶,能分解细胞壁(尤其是肽聚糖)或相关结构,从而参与细胞壁重塑、细胞分裂,在某些情况下也会导致自溶(autolysis)。该词在微生物学语境中最常见;在不同生物中所指的具体底物与机制可能有所差异。

Pronunciation 发音

/tolasn/

Examples 例句

The autolysin helps the bacterium separate into two daughter cells.
自溶素帮助细菌在分裂时分开形成两个子细胞。

Under stress, increased autolysin activity can weaken the cell wall, making the bacteria more susceptible to antibiotics.
在压力条件下,自溶素活性增强可能削弱细胞壁,使细菌更容易受到抗生素影响。

Etymology 词源

auto- 表示“自身、自动”,来自希腊语 autos(自己);**-lysin** 与 lyse/lysis(溶解、裂解)同源,源自希腊语 lysis(松开、分解)。合起来字面意思就是“使自身裂解的酶”。

Related Words 相关词

Literary & Notable Works 文献与名著

  • Brock Biology of Microorganisms(《布罗克微生物学》):在细胞壁结构与肽聚糖代谢章节中讨论自溶素在生长与分裂中的作用。
  • Molecular Genetics of Bacteria(《细菌分子遗传学》):涉及细胞壁合成/降解调控时常出现 autolysin
  • Journal of Bacteriology(《细菌学杂志》)等经典期刊论文:关于革兰氏阳性菌(如 Streptococcus, Staphylococcus)细胞壁水解酶与自溶相关研究中频繁使用该词。
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