V2EX commensal

Commensal

释义 Definition

commensal(形/名)

  1. 共栖的;共生但不伤害宿主的(常用于生态学、微生物学):指一种生物与另一种生物共同生活,通常一方获益、另一方基本不受影响
  2. (较少见,源义)同桌共餐的;同席者

发音 Pronunciation (IPA)

/kmn.sl/

例句 Examples

A commensal bacterium lives in our gut without causing disease.
一种共栖细菌生活在我们的肠道里,但不会引发疾病。

Although many microbes are commensal most of the time, changes in immunity can let them become opportunistic pathogens.
尽管许多微生物在大多数时候是共栖的,但免疫状态的变化可能使它们变成机会性病原体。

词源 Etymology

来自拉丁语 commensalis,由 **com-**(一起)+ mensa(餐桌)构成,原意是“同桌吃饭的人”。后来在生物学中引申为“共同生活但不必互利或互害”的关系与个体(如肠道共栖菌)。

相关词 Related Words

文学与著作 Literary Works

  • I Contain Multitudes(Ed Yong)讨论人体微生物群时常用 commensal 描述“共栖菌”。
  • Spillover(David Quammen)在谈人畜共患病与宿主微生物关系时使用 commensal
  • Medical Microbiology(Murray, Rosenthal & Pfaller)医学微生物学经典教材中高频出现,用于区分共栖菌与致病菌。
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