V2EX rhizobium

Rhizobium

定义 Definition

根瘤菌:一类生活在土壤中、能与豆科植物(如豌豆、大豆、苜蓿)根部形成“根瘤”并进行生物固氮的细菌,把空气中的氮转化为植物可利用的形式,从而提高土壤肥力。(在更宽泛的用法中,人们有时也用它泛指与植物共生固氮的相关细菌,但严格分类上还有其他属。)

发音 Pronunciation (IPA)

/razobim/

例句 Examples

Rhizobium helps beans grow better in poor soil.
根瘤菌能帮助豆类在贫瘠土壤中长得更好。

Farmers sometimes inoculate legume seeds with rhizobium to boost nitrogen fixation and reduce fertilizer use.
农民有时会用根瘤菌给豆科作物种子接种,以增强固氮作用并减少化肥使用。

词源 Etymology

Rhizobium 来自新拉丁语的科学命名:rhizo- 源于希腊语 rhiza(“根”),**-bium / -bio-** 与“生命/生物”相关,用来指代细菌类群;整体含义可理解为“与根相关的细菌”,对应其在植物根部形成根瘤的特征。

相关词 Related Words

文学与著作 Literary Works

  • 《Brock Biology of Microorganisms》(微生物学经典教材)中在“固氮与植物微生物互作”章节常出现 Rhizobium
  • 《Principles of Plant-Microbe Interactions》(植物微生物互作原理类著作)讨论豆科根瘤菌共生机制时频繁使用该词。
  • 期刊 Nature / Science / The ISME Journal 的相关论文:在“根瘤形成”“共生固氮”“土壤微生物组”等研究中常见 Rhizobium
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