Organisms

Oomycetes

Eukaryotes in the group STRAMENOPILES, formerly considered FUNGI, whose exact taxonomic level is unsettled. Many consider Oomycetes (Oomycota) a phylum in the kingdom Stramenopila, or alternatively, as Pseudofungi in the phylum Heterokonta of the kingdom Chromista. They are morphologically similar to fungi but have no close phylogenetic relationship to them. Oomycetes are found in both fresh and salt water as well as in terrestrial environments. (Alexopoulos et al., Introductory Mycology, 4th ed, pp683-4). They produce flagellated, actively motile spores (zoospores) that are pathogenic to many crop plants and FISHES.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Eukaryotes in the group STRAMENOPILES, formerly considered FUNGI, whose exact taxonomic level is unsettled. Many consider Oomycetes (Oomycota) a phylum in the kingdom Stramenopila, or alternatively, as Pseudofungi in the phylum Heterokonta of the kingdom Chromista. They are morphologically similar to fungi but have no close phylogenetic relationship to them. Oomycetes are found in both fresh and salt water as well as in terrestrial environments. (Alexopoulos et al., Introductory Mycology, 4th ed, pp683-4). They produce flagellated, actively motile spores (zoospores) that are pathogenic to many crop plants and FISHES.

MeSH Record

Classification

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MeSH Record

Synonyms

3 entry terms
  • Oomycota
  • Oomycete
  • Oomycotas

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

general or unspecified; prefer specifics; infection: coordinate IM with INFECTION (IM)

MeSH Record

History Note

91(75); use FUNGI 1972-74

MeSH Hierarchy

Tree Number

  1. B01w.750.580w

AMA Style

References

  1. National Library of Medicine. Oomycetes. Medical Subject Headings (MeSH). 2026. Unique ID D009868. http://id.nlm.nih.gov/mesh/2026/D009868
  2. Oomycetes. In: Wikipedia. https://en.wikipedia.org/wiki/Oomycete
  3. Oomycetes. In: Wikidata. https://www.wikidata.org/wiki/Q223597