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Samenvatting Microbiologie - mycologie

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Uitgewerkte slides + eigen notities van het vak Microbiologie - deel mycologie van Prof. Cos

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2021-
2022




Microbiologie: Mycologie
BA 3 DIERGENEESKUNDE

, Fungi = EUKARYOTEN  celkern en mitochondriën

Fungi
 Schimmels
 Gisteren
 Dermatofyten


Algemene structuur schimmels
Mycelium  bestaat uit hyphen (cellen
naast elkaar) en de sporen zitten op de
kopjes van de hyphen


Hyphen kunnen ofwel gesepteerde hyphen zijn ofwel niet
Coenocyte hyphen zijn de niet-gesepteerde  alles vervloeit
met elkaar




Algemene structuur gisten
• Rond tot ovaal (groter dan bacterie! 3-15 µm)
• Facultatief anaeroob
• Bud = knopje = blastosporen
• Pathogene gisten delen door budding
(asymmetrisch)  op de knopjes kunnen nog
meerdere knopjes komen
• Als de knopjes blijven hangen (komen niet los) = pseudohyphen


Algemene structuur van dimorfe funghi
Kunnen zowel als gist of als schimmel voorkomen
• Typisch is thermaal dimorfisme
 bij 37C komt het als gist voor, bij 25C als schimmel


Subcellulaire structuur
Nuttig om te weten hoe we de behandeling kunnen doen
• Capsule: polysacchariden  bescherming tegen fagocytose
• Celwand
• Celmembraan
 belangrijkste voor de behandeling (allemaal anders dan bij een bacterie)
• Cytoplasma:
 Kern en kernmembraan
 Endoplasmatisch reticulum
 Mitochondriën
 Vacuoles




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