Mycology Chapter 1 Review
What is the size of septate hyphae
3 to 4um in diameter
Size of aseptate hyphae
6 to 10um in diameter
What phyla are septate?
Ascomycota, Basidiomycota, Deuteromycota
Favor chandeliers are diagnostics for identifying cultures of:
Trichophyton schoenleinii
Hyphae that extends above the agar surface and may support reproductive structures called conidia
aerial
observed in scolpulariopsis, grown from inside a vase-shaped conifiogenous annellide
annelloconidia
condidia may originate ______________, meaning the conidiogenous (parent) cell enlarges then septum separates the enlarged portion into a daughter cell
blastically
how are blastoconidia produced?
budding
Describe fungi:
contain true nuclei, devoid of chlorophyll absorb all nutrients from the environment especially from decaying matter
What is one of the primary aids in identifying dimorphic fungi?
conversion from mold to yeast
how are poroconidia formed?
daughter pushing through a minute pore in the parent cell
fungi that posses two distinct phases
dimorphism
True or false: most of the dimorphic organisms produce little to no disease.
false: serious and often fatal
Resembles the antlers of a buck deer, with ends of the hyphae blunt and branched
favic chandeliers
Mycology is the study of what?
fungi
Hyphae may be aseptate or septate: aspeptate meaning they: and what phylum?
have no cross walls: Zygomycota
Microscopically, fungal cells are observed as either :
hyphae (molds) or as yeasts
prefix holo infront of blastically/thallically
indicates that all wall layers of the parent cell are involved in daughter conidium development
conidiophore
long stalk
At room temperature (25 to 30C) they grow as
mold
knots of twisted hyphea
nodular organs
what does the prefix enter mean?
only the inner cell walls are included
elicited from a tube or vase shaped conidiogenous structure term phialide (penicillium)
phialoconidia
Hyphae that resemble tennis racquets placed end to end
racquet hyphae
What is dermatophytosis?
ringworm of skin, hair or nails
most hyphae are_____________ meaning they have cross walls
septate
Hyphae commonly observed in older cultures; may be flat or may turn like a corkscrew
spiral hyphae
condidia may originate ___________, meaning a septum forms first and the growing point ahead of it becomes the daughter
thallically
How are fungi observed? (2 ways)
under the microscope and as a colony on an agar plate macroscopically
The vegetative or food absorbing portion of the mycelium is located where?
under the surface of the agar
At body temperature (37C) or incubator temp (35C) they grow as
yeast
Consist of individual oval to round cells, which frequently bud to form daughter cells
yeast
