microbio - fungi Flashcards
Unicellular growth form of fungi
Yeast
Eucaryotic cells that lack chlorophyll so they cannot generate thru photosynthesis. They do require aerobic environment.
Fungi
Multicellular colonies composed of clumps of intertwined branching hyphae
Molds
Reproducing bodies of molds.
Spore
Fungi that can grow as either a yeast or mold, depending on environmental conditions and temperature (usually growing as a yeast at body temperatures).
Dimorphic fungi
Culture for fungi
Saborauds agar
Fungi that live in and utilize organic matter (soil, rotten vegetation) as an energy source.
Saprophytes
Essential sterol in fungi
Ergosterol
Antifungal drug that destroys cm (ergosterol)
Amphiteracin B and nystatin
Antifungal drug that inhibits ergosterol synthesis
Ketoconazole
Superficial fungal infection
Pityriasis versicolor
Tinea nigra
Primary manifestation of superficial fungal infections
Pigment change of the skin
Pityriasis versicolor is caused by..
Malassezia furfur
Fungi can look like spaghetti (hyphae) and meat balls (spherical yeast)
Malassezia furfur
Lipophylic yeast
Malassezia furfur
Category of cutaneous fungal infection where fungi live in the dead, horny layer of skin, hair and nails.
Dermathophytic cells
Dermatophytic cells secreted an enzyme called…
Keratinase
Fungal infection of the body
Tinea corporis
Fungal infection of the hair (scalp)
Tinea capitis
Fungal infection of the groin and scrotum
Tinea cruris
Fungal infection of the foot
Tinea pedis
Fungal infection of the nails
Tinea unguium (onchomycosis)
First line drugs for treatment of dermatophytoses
Topical imidazole
Treatment for tinea capitis and tinea unguium
Oral griseofulvin
Subcutaneous fungal infection
Sporotrichosis
Chromoblastomycosis
Microorg that causes sporotrichosis
Sporothrix schenckii