V2EX chemoautotroph

Chemoautotroph

释义 Definition

化能自养生物:一种不依赖阳光进行光合作用,而是通过氧化无机化学物质(如硫化氢、氨、亚铁离子、氢气等)获取能量,并以二氧化碳(CO)为碳源合成有机物的生物,常见于某些细菌和古菌。该词在微生物学与生态学中很常用。

发音 Pronunciation (IPA)

/kimottrof/

例句 Examples

Chemoautotrophs can live without sunlight.
化能自养生物可以在没有阳光的环境中生存。

In deep-sea hydrothermal vents, chemoautotrophs form the base of the food web by using chemical energy to fix carbon.
在深海热液喷口中,化能自养生物通过利用化学能进行碳固定,构成了食物网的基础。

词源 Etymology

该词由三部分构成:**chemo-**(化学的)+ auto-(自我、自己)+ -troph(营养、摄食者/以……为营养者)。字面意思接近“靠化学能、自己制造营养的生物”。它与 photoautotroph(光能自养生物)相对,用于强调能量来源不是光,而是化学反应。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Thomas M. Schmidt & Moselio Schaechter (eds.), Topics in Ecological and Environmental Microbiology(生态与环境微生物学相关章节中常用于讨论化能自养代谢与生态位)
  • Michael T. Madigan et al., Brock Biology of Microorganisms(《布洛克微生物学》:教材中用于讲解化能自养与化能异养等代谢类型)
  • Martin W. Brasier, Life’s Origin: The Beginnings of Biological Evolution(生命起源与早期地球生态讨论中会涉及化能自养途径)
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