V2EX heterotrophic

Heterotrophic

释义 Definition

(生物学)异养的:指生物不能利用无机物(如二氧化碳)自行合成有机物,必须通过摄取其他生物或其产物来获得能量与营养(如动物、真菌、许多细菌与原生生物)。在生态学中常与 autotrophic(自养的)对比。

例句 Examples

Many fungi are heterotrophic and absorb nutrients from decaying matter.
许多真菌是异养生物,会从腐烂的有机物中吸收养分。

In a heterotrophic ecosystem, energy ultimately depends on organic compounds produced elsewhere, making food webs highly sensitive to changes in primary production.
在异养型生态系统中,能量最终依赖于其他地方产生的有机化合物,因此食物网对初级生产变化非常敏感。

发音 Pronunciation (IPA)

/htrtrofk/

词源 Etymology

hetero- 来自希腊语 heteros(“不同的、他者的”),**-trophic** 来自希腊语 trophē(“营养、滋养”)。合起来表示“以不同来源的营养为生”,即需要从外界获取现成有机物的营养方式。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Campbell Biology(《坎贝尔生物学》):在代谢类型与生态系统能量流动章节中常用 heterotrophic 描述异养生物。
  • Brock Biology of Microorganisms(《布洛克微生物学》):用于区分微生物的营养类型(如化能异养等)。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在代谢与能量获取的语境中涉及异养生物对有机物的依赖。
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