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60 Cards in this Set

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How do contaminant molds develop into infections?
They are opportunistic; usually 2ndary to another disease in immunocompromised
-due to neutropenia
-due to bad hygiene
How do we seperate the contaminant molds?
Based on microscopic morphology
What are the 5 groups of contaminant molds?
1. Aseptate hyphae (zygomyc)
2. Septate w/ conidiophore ending in a vesicle
3. Septate w/ conidiophore branching into Penicillus
4. Septate w/ conidia in clusters
5. Septate dematiceous
What are the molds that are aseptate?
Zygomycetes
-Rhizopus
-Mucor
-Absidia
What mold totally resembles zygomcetes but is not?
Syncephalastrum
Zygomycetes
WHAT IS IT?
aspergilloma
WHAT IS IT?
Aspergillus niger
WHAT IS IT?
Aspergillus fumigatus
WHAT IS IT?
Aspergillus fumigatus
WHAT IS IT?
Syncephalastrum
WHAT IS IT?
Paecilomyces vs. penicillium
WHAT IS IT?
Penicillium
WHAT IS IT?
paecilomyces
WHAT IS IT?
penicillium growth - slightly greenish
WHAT IS IT?
scopulariopsis
WHAT IS IT?
scopulariopsis
WHAT IS IT?
acremonium
WHAT IS IT?
acremonium
WHAT IS IT?
fusarium
WHAT IS IT?
fusarium
WHAT IS IT?
fusarium
WHAT IS IT?
Sepedonium
WHAT IS IT?
Chrysosporium
WHAT IS IT?
chrysosporium
WHAT IS IT?
Gliocladium
WHAT IS IT?
Gliocladium
WHAT IS IT?
Alternaria
WHAT IS IT?
Alternaria
WHAT IS IT?
Alternaria
WHAT IS IT?
curvularia
WHAT IS IT?
curvularia
WHAT IS IT?
drechslera
WHAT IS IT?
cladosporium
WHAT IS IT?
nigrospora
WHAT IS IT?
nigrospora
WHAT IS IT?
ulocladium
WHAT IS IT?
ulocladium
WHAT IS IT?
paecilomyces
WHAT IS IT?
What are the 2 molds with Septate hyphae ending in a vesicle?
1. Aspergillus
2. Syncephalastrum
What are the 4 species of Aspergillus we know of?
1. A. niger
2. A. fumigatus
3. A. flavus
4. A. glaucus
Which species of aspergillus is most likely to cause a serious systemic infection?
Aspergillus fumigatus
What are 6 diseases caused by aspergillus?
1. aspergilloma
2. Pulmonary spergillosis
3. Disseminated aspergillosis
4. Otitis externa
5. Keratitis
6. Alergic bronchopulmonary disease
What's another name for allergic bronchopulmonary disease?
Farmer's lung
What are the structures in aspergillus?
-Septate hyphae
-Conidiophore, terminates in a vesicle
-Phialides -> phialoconidia in chains
What are the structures in Syncephalastrum?
-Aseptate hyphae
-Sporangiophore, terminates in a vesicle
-Sporangiospores in chains come off vesicle
-Mesosporangia contains the chains of spores
What is common to both penicillium and paecilomyces?
Fingerlike spreading of phialides bearing phialoconidia
What is different between penicillium/paecilomyces?
-Elongated phialides in paecilomyces.
-ROUND phialoconidia in penicillium.
What species of penicillium is commonly seen in labs?
Penicillium marneffei
What colonial colors are:
-Penicillium
-Paecilomyces
Penicillium = white -> green
Paecilomycs = white -> tanner
What 5 molds have aseptate hyphae w/ conidia clustered?
1. Acremonium
2. Fusarium
3. Sepedonium
4. Chysosporium
5. Gliocladium
What does sepedonium resemble?
H. capsulatum (budding conidia)
What are characteriscts of Chyrsosporium?
Clavate, aseptate hyphae, intercalcary
What are the 6 demataceous fungi with septate hyphae?
CADCUN
Curvularia, alternaria, drechslera, cladosporium, ulocladium, nigrospora.
At maturity what colors are:
A. niger
A. fumigatus
A. flavus
A. glaucus
Niger = black
Fumigatus/flavus = dark green
Glaucus = yellow-brown
Which aspergillus has unique conidiophore, and what is it?
Aspergillus flavus; rough, echinulate conidiophore
which aspergillus species have double phialides? How are they arranged around ves?
Niger/flavus; cover entire vesicle and radiate OUT.
What type of vesicles does a. fumigatus have?
Single; cover upper 1/3 to 2/3 of vesicle and stick UP.
What type of vesicles does a. glaucus have?
Single; loosely arranged and radiate out.
Which aspergillus has cleistotheicia?
A. glaucus.