V2EX archaeon

Archaeon

定义 Definition

archaeon(古菌):一种单细胞微生物,属于“古菌域(Archaea)”。它们在基因与生化特征上不同于细菌(Bacteria)和真核生物(Eukaryotes),常见于极端环境(如高盐、高温、强酸),也广泛存在于海洋、土壤和人体等普通环境中。复数:archaea 或 archaeons。

发音 Pronunciation

/rkin/

例句 Examples

An archaeon can survive in very hot water.
一种古菌可以在非常热的水中生存。

Researchers discovered an archaeon whose enzymes remain stable under extreme salinity, offering clues about early life on Earth.
研究人员发现了一种古菌,其酶在极端高盐环境下仍能保持稳定,这为理解地球早期生命提供了线索。

词源 Etymology

archaeon 来自希腊语词根 archaios(“古老的、远古的”),强调这类生物在进化分支上与早期生命研究的关联。现代用法与生物分类学发展有关:20世纪后期,科学家提出古菌与细菌有本质差异,于是用相关词根命名这一类群。

相关词 Related Words

文学作品与著名文本 Literary Works

  • Carl R. Woese, Microbiology and Molecular Biology Reviews(综述论文与学术文章):在古菌分类与“三域系统”相关研究中频繁出现 archaeon/archaea
  • Nick Lane, The Vital Question(科普著作):讨论生命起源与早期代谢时涉及古菌与相关概念。
  • Richard Dawkins, The Ancestor’s Tale(科普著作):在讲述生命谱系与微生物进化的章节中会出现 archaea/archaeon 等术语。
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