V2EX azotobacter

Azotobacter

释义 Definition

Azotobacter(固氮菌属/无根瘤固氮菌):一类常见于土壤和水体中的自由生活(非共生)细菌属,能够将空气中的氮气(N)固定为可被生物利用的含氮化合物,因此在土壤肥力与生物肥料研究中很重要。(该词也常泛指该属中的具体物种。)

发音 Pronunciation (IPA)

/zotbktr/

例句 Examples

Azotobacter lives in soil and helps fix nitrogen.
固氮菌属生活在土壤中,并有助于固氮。

Because Azotobacter can fix atmospheric nitrogen without forming root nodules, it is often discussed in studies of soil fertility and biofertilizers.
由于固氮菌属能够在不形成根瘤的情况下固定空气中的氮气,它常出现在关于土壤肥力与生物肥料的研究中。

词源 Etymology

Azotobacter由两部分构成:azoto- 来自法语 azote(“氮”之意,源自希腊语,含“无生命”之概念,早期用来指氮不助燃/不维持呼吸),加上 -bacter(“细菌”,源自希腊语 baktērion,意为“小杆、细小的棍状物”)。整体字面含义可理解为“与氮有关的细菌”。

相关词 Related Words

文学与著作 Literary Works

  • Bergey’s Manual of Systematic Bacteriology(《伯杰氏系统细菌学手册》)
  • Brock Biology of Microorganisms(《布罗克微生物学》)
  • Martin Alexander, Introduction to Soil Microbiology(《土壤微生物学导论》)
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