V2EX chemolithotroph

Chemolithotroph

定义 Definition

chemolithotroph(化能无机营养生物/化学无机营养生物):指通过氧化无机物(如氢气 H、硫化物、亚铁离子 Fe、氨 NH 等)获取能量,并以此维持生长代谢的生物,常见于许多细菌和古菌。在自然界的氮循环、硫循环等生物地球化学循环中很重要。(该词在不同语境下也可能与“化能自养/异养”等更细分类型搭配使用。)

发音 Pronunciation

/kmolθtrof/

例句 Examples

Many deep-sea bacteria are chemolithotrophs that live without sunlight.
许多深海细菌是化能无机营养生物,它们在没有阳光的环境中也能生存。

Because it oxidizes ammonia for energy, Nitrosomonas is a classic chemolithotroph involved in the nitrogen cycle.
由于它通过氧化氨获取能量,Nitrosomonas(亚硝化单胞菌)是参与氮循环的典型化能无机营养生物。

词源 Etymology

该词由三部分构成:**chemo-**(化学的)+ **litho-**(石头/矿物的,引申为“无机物”)+ -troph(营养、摄食者/以……为生者)。合起来字面意思就是“以化学方式、以无机物为能量/营养来源的生物”。

相关词 Related Words

  • Chemotroph
  • Lithotroph
  • Phototroph
  • Autotroph
  • Heterotroph
  • Chemoautotroph
  • Chemolithoautotroph
  • Nitrification
  • Extremophile
  • 文学/著作中的用例 Literary Works

    • Brock Biology of Microorganisms(《布洛克微生物学》):在微生物代谢与营养类型章节中常用 chemolithotroph 讨论无机能量来源与生态角色。
    • Microbiology: An Introduction(Tortora 等,《微生物学导论》):介绍化能营养与无机氧化时会出现该术语,并以硝化细菌等为例。
    • Bergey’s Manual of Systematic Bacteriology(《伯杰氏系统细菌学手册》):在分类与生理描述中常用 chemolithotroph 概括某些类群的能量获取方式。
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