Lecture 13 - Mycology Flashcards
Fungi Imperfecti is another name for
Anamorphic fungi
How does the mushroom fairy ring form?
A mushroom explodes on a still night and spores land around in a perfect circle
Which is more safe: yeast or mold
Yeast
Which grows more quickly: yeast or mold
Mold
How do molds grow?
The grow in tubes called Hypha which grow outwards and create hazardous spores
Where do spores originate from?
The mycelium of molds
Most common yeast infector?
Candida albicans
Where is Candida albicans found?
Normally in vagina bowel or skin
What can Candida albicans cause?
Diaper rash, UTI, skin irritation
Where does thrush infect?
The mouth
Where does cryptococcus neoformans come from?
Bird poo
How do we diagnose cryptococcus neoformans?
By taking a culture
What are the 4 methods to ID holds?
Growth rate in a culture
Presence of a yeast phase
Colonial and microscopic morpholgy
Biochemical testing
What do Hyaline hyphae look like
Glass with little dividers called septa
What do hyaline holds look like
Grey fuzzy colonies
Types of dermatophytes
Trichophyton spp.
Microsporum spp.
Epidermophyton floccosum
Common name for tenia pedis
Athletes foot
Common name for tenia carpers
Ringworm
What does kerion look like?
A weeping mass of mycelium on the scalp
What do dematiaceous hyphae look like
Brown and earthy
How are dimorphic fungi unique?
The can grow as both yeast or mold
How are dimorphic fungi contracted?
By inhalation of spores
What to dimorphic fungi causes
Systemic mycoses
Histoplasma capsulatum is deadly because it can cause
The formation of yeast cells in the blood
Blastomyces dermatitidis can infect
Skin, bone and GI tract
How does a blastomyces dermatitis infection come from
Wood slivers or dog bites
What is the most dangerous infecting fungi
Cocadioides immitis
How is cocadioides immitis so deadly?
Can be inhaled, destroy bone and cause meningitis
Common name for sporothrix schenckii
Rose throw infection
