Anatomy

Macronucleus

The larger of two types of nuclei in ciliate protozoans. It is the transcriptionally active nucleus of the vegetative cells as distinguished from the smaller transcriptionally inert GERMLINE MICRONUCLEUS.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The larger of two types of nuclei in ciliate protozoans. It is the transcriptionally active nucleus of the vegetative cells as distinguished from the smaller transcriptionally inert GERMLINE MICRONUCLEUS.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

1 entry terms
  • Macronuclei

MeSH Record

Aspects Covered

15 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Record

History Note

2005

MeSH Record

Previous Indexing

  • Cell Nucleus (1965-2004)

MeSH Hierarchy

Tree Numbers

  1. A11w.284w.430w.106w.550w
  2. A11w.284w.430w.214w.190.875w.117w.550w

AMA Style

References

  1. National Library of Medicine. Macronucleus. Medical Subject Headings (MeSH). 2026. Unique ID D048648. http://id.nlm.nih.gov/mesh/2026/D048648
  2. Macronucleus. In: Wikipedia. https://en.wikipedia.org/wiki/Macronucleus
  3. Macronucleus. In: Wikidata. https://www.wikidata.org/wiki/Q1886511