Organisms

Seaweed

Multicellular marine macroalgae including some members of red (RHODOPHYTA), green (CHLOROPHYTA), and brown (PHAEOPHYCEAE) algae. They are widely distributed in the ocean, occurring from the tide level to considerable depths, free-floating (planktonic) or anchored to the substratum (benthic). They lack a specialized vascular system but take up fluids, nutrients, and gases directly from the water. They contain CHLOROPHYLL and are photosynthetic, but some also contain other light-absorbing pigments. Many are of economic importance as FOOD, fertilizer, AGAR, potash, or source of IODINE.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Multicellular marine macroalgae including some members of red (RHODOPHYTA), green (CHLOROPHYTA), and brown (PHAEOPHYCEAE) algae. They are widely distributed in the ocean, occurring from the tide level to considerable depths, free-floating (planktonic) or anchored to the substratum (benthic). They lack a specialized vascular system but take up fluids, nutrients, and gases directly from the water. They contain CHLOROPHYLL and are photosynthetic, but some also contain other light-absorbing pigments. Many are of economic importance as FOOD, fertilizer, AGAR, potash, or source of IODINE.

MeSH Record

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MeSH Record

Synonyms

1 entry terms
  • Macroalgae

MeSH Record

Aspects Covered

17 allowable subheadings

Indexed with the subheadings chemistry, classification, cytology, drug effects, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, microbiology, parasitology, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

coordinate with specific alga if pertinent; for use in therapy coordinate IM with PHYTOTHERAPY (IM) + disease/drug ther (IM) + PLANT PREPARATIONS or its indentations/ ther use (IM or NIM) + specific plant chemical /ther use (IM) if pertinent; Manual 26.29

MeSH Hierarchy

Tree Number

  1. B05.080w.750w

AMA Style

References

  1. National Library of Medicine. Seaweed. Medical Subject Headings (MeSH). 2026. Unique ID D012624. http://id.nlm.nih.gov/mesh/2026/D012624
  2. Seaweed. In: Wikipedia. https://en.wikipedia.org/wiki/Seaweed
  3. Seaweed. In: Wikidata. https://www.wikidata.org/wiki/Q237169