Fungi: Difference between revisions

From IDWiki
m (Aidan moved page Fungi to Fungal infections)
No edit summary
Line 1: Line 1:
 
= Ecology =
= Fungal infections =
 
 
== Ecology ==
 
   
 
* Contaminant
 
* Contaminant
Line 9: Line 7:
 
* Disease with damage
 
* Disease with damage
   
== Clinical Categories ==
+
= Clinical Categories =
   
 
* Yeasts (single-cell)
 
* Yeasts (single-cell)
Line 31: Line 29:
 
* Unusual fungi or fungal-like organisms
 
* Unusual fungi or fungal-like organisms
   
== Identification of Molds ==
+
= Identification of Molds =
   
 
* Macroscopic
 
* Macroscopic
Line 49: Line 47:
 
**** Chlamydospores
 
**** Chlamydospores
   
== Identification of Yeasts ==
+
= Identification of Yeasts =
   
 
* Macroscopic
 
* Macroscopic
Line 60: Line 58:
 
* Molecular tests
 
* Molecular tests
   
== Further Reading ==
+
= Further Reading =
   
 
* Anaissie Clinical Mycology 2e
 
* Anaissie Clinical Mycology 2e
  +
  +
[[Category:Fungi]]

Revision as of 21:21, 14 August 2019

Ecology

  • Contaminant
  • Commensal
  • Colonization
  • Infection without damage
  • Disease with damage

Clinical Categories

  • Yeasts (single-cell)
    • Candida
    • Cryptococcus
  • Molds (multi-cellular)
    • Hyalohyphomycosis (hyaline molds)
    • Phaeohyphomycosis (dematiaceous or pigmented)
    • Mucormycosis
    • Dermatophyte (also hyaline)
  • Thermally dimorphic fungi (yeast at 37°C, molds below 37°C)
    • Histoplasmosis
      • Great Lakes region and Ohio River Valley
      • Very small cells
    • Blastomycosis
      • Especially prevalent in Ontario
    • Coccidiomycosis
      • South-western US (Arizona and Nevada)
      • Larger cells
  • Pneumocystis
  • Unusual fungi or fungal-like organisms

Identification of Molds

  • Macroscopic
    • Colony appearance
    • Growth rate
  • Microscopic
    • Hyphae
    • Sexual reproduction (rarely)
    • Asexual reproduction
      • Blastic conidia: conidia created by budding
        • Blastoconidia: created by budding from the apex or side of a conidiophore. May be solitary, in chains, sympodial (like alternating leaves), or multiseptate.
        • Annelloconidia: with rings on an annellide.
        • Phialoconidia: with a collarette on a bottle-shaped phialide, conidia releated from collaratte.
      • Thallic conidia: conidia created from existing hyphal segments
        • Arthroconidia: may be simple or alternate (with disjunctor cells).
        • Aleurioconidia: may have macroconidia or microconidia.
        • Chlamydospores

Identification of Yeasts

  • Macroscopic
    • Colony appearance
  • Microscopic
    • Budding cells: may be unipolar or (rarely) bipolar, or (rarely) division by fission
    • Filamentation, including pseudohyphae and true hyphae (which includes germination tubes)
    • Conidium or chlamydospore production
  • Physiological tests, including chromagar Candida medium
  • Molecular tests

Further Reading

  • Anaissie Clinical Mycology 2e