Phenomena and Processes

Nitrogen Fixation

The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

10 entry terms
  • Diazotrophic Activity
  • Dinitrogen Fixation
  • N2 Fixation
  • Activities, Diazotrophic
  • Activity, Diazotrophic
  • Diazotrophic Activities
  • Fixation, Dinitrogen
  • Fixation, N2
  • Fixation, Nitrogen
  • Diazotrophy

MeSH Record

Aspects Covered

5 allowable subheadings

Indexed with the subheadings drug effects, genetics, immunology, physiology, radiation effects.

MeSH Hierarchy

Tree Numbers

  1. G02.111.071.630w
  2. G02.111.587w.750w
  3. G02.607.560w.750w
  4. G03w.087.630w
  5. G06.625w
  6. G16.500.768w.600w

AMA Style

References

  1. National Library of Medicine. Nitrogen Fixation. Medical Subject Headings (MeSH). 2026. Unique ID D009586. http://id.nlm.nih.gov/mesh/2026/D009586
  2. Nitrogen Fixation. In: Wikipedia. https://en.wikipedia.org/wiki/Nitrogen_fixation
  3. Nitrogen Fixation. In: Wikidata. https://www.wikidata.org/wiki/Q272467