Fungal Pathogens

Question 1

Fungi

Answer 1

Eukaryotic: nucleus and membrane-bound organelles

Cell wall made up of chitin, beta-glucan, and mannan

Cell membrane with ergosterol

Used for food, food production, and pharmeceuticals

Question 2

Pathogenic Fungi in Humans

Answer 2

Yeasts - Candida, Cryptococcus

Molds - Aspergillus, Pseudoallescheria

Dimorphics - Can switch between yeasts and molds

Question 3

Yeasts

Answer 3

Unicellular, 3-10 microns

Replicate by asexual budding or fission

Can form pseudohyphae (connected budding cells) or true hyphae (elongated cells)

Candida, Crytococcus

Question 4

Molds

Answer 4

Multicellular

Comprised of hyphae, myeclium, and spores

Involved in decomposition of organic matter

Aspergillus, Pseudallescheria

Question 5

Superficial Fungal Infections

Answer 5

Caused by dermatophytes (Trichophyton and Microsporum)

Tinea corpis AKA ringworm
Tinea pedis AKA athlete’s foot
Tinea capitis AKA cradle cap

Topical treatments