V2EX lithotroph

Lithotroph

释义 Definition

lithotroph(名词):以无机物为能量来源的生物(常见于微生物,如某些细菌和古菌)。它们通过氧化无机化合物(如硫化氢、氨、亚铁离子、氢气等)来获取能量。(该词在微生物学中常与“化能/光能”“自养/异养”等营养类型一起使用。)

发音 Pronunciation (IPA)

/lθtrof/

例句 Examples

Lithotrophs can live in places where there is no sunlight.
岩石营养生物可以生活在没有阳光的地方。

In deep-sea hydrothermal vents, some lithotrophs oxidize hydrogen sulfide to fuel carbon fixation and support entire ecosystems.
在深海热液喷口处,一些岩石营养生物通过氧化硫化氢为碳固定提供能量,并支撑起整个生态系统。

词源 Etymology

来自希腊语词根:litho-(λθο,意为“石头/岩石”)+ -troph(τροφ,意为“营养/摄食”)。字面意思可理解为“以岩石/无机物为营养(能量来源)的(生物)”,用来强调其能量来源主要是无机化学物质而非有机物或光能。

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》):在微生物营养类型与“化能无机营养(chemolithotrophy)”相关章节中常出现 lithotroph/lithotrophic
  • Madigan et al., Brock Biology of Microorganisms(不同版本作者署名略有变化):讨论深海热液喷口、硫氧化/氨氧化微生物时常使用该术语。
  • Prescott’s Microbiology(《普雷斯科特微生物学》):在微生物代谢与生态部分介绍以无机物为电子供体/能量来源的生物时使用该词。
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