V2EX teichoic acid

Teichoic Acid

释义 Definition

磷壁酸:一种存在于革兰氏阳性菌细胞壁中的含磷聚合物(常由甘油磷酸或核糖醇磷酸重复单元组成),与肽聚糖层结合,参与细胞壁结构稳定、离子(如Mg)结合、细胞表面电荷与黏附,以及免疫识别等过程。(另有相关类型:脂磷壁酸 lipoteichoic acid)

发音 Pronunciation (IPA)

/takk sd/

例句 Examples

Teichoic acid is found in the cell wall of Gram-positive bacteria.
磷壁酸存在于革兰氏阳性菌的细胞壁中。

Mutations that alter teichoic acid synthesis can change cell surface charge and affect susceptibility to certain antibiotics.
影响磷壁酸合成的突变可能改变细胞表面电荷,并影响对某些抗生素的敏感性。

词源 Etymology

teichoic 来自希腊语 teichos(意为“墙”),反映其主要定位在细菌的“细胞壁”结构中;acid 指其分子中含有带负电的磷酸基团,因此整体呈酸性特征并能与阳离子结合。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Brock Biology of Microorganisms(《布洛克微生物学》)中在革兰氏阳性菌细胞壁章节讨论 teichoic acid 的结构与功能。
  • Medical Microbiology(如 Murray 等编写的医学微生物学教材)在细菌致病性与免疫识别相关内容中提及 teichoic acid / lipoteichoic acid。
  • Baddiley 等人关于细菌细胞壁聚合物的经典研究论文(20世纪中期)中系统使用并推进了 teichoic acid 概念与命名。
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