Flashcards in mycology lab quiz Deck (27)
infection of the nail
what does the word tinae mean?
latin word for ringworm
name the short lateral structure that will develop when certain yeast are incubated at 37 degrees in a rich medium
name one yeast that is germ tube positive
at what temperature should chlamydospore agar be incubated?
where should the technologist look for spores on a chlamydospore agar plate?
edge of the coverslip
what color and shape are the spores on a chlamydospore plate?
blue and round
what is the principle of the india ink preparation
drop of india ink and drop of organism
then look on high power will see halo around the budding yeast because particles of the india ink bounce off the unstained capsule
what organism is india ink especially used for?
what type of specimen is most frequently used for india ink ?
what reagent should be used for the examination of the reproductive structures of molds that are already growing in a culture?
lactophenol cotton blue (LPCB)
what technique can be used to "save" wet preps for future use?
clear fingernail polish all around coverslip
name several media used for the primary isolation of fungi
why would you incubate a culture for fungi at 25 degrees and 37 degrees
to demonstrate both phases (dimorphic/diphasic)
mold is at 25 and yeast is at 37
what term is used for fungi that grow differently at these temperatures
why do mycologists use KOH
to clear keratin so fugal elements will stand out
what specific protein does KOH affect?
name at least two fungal elements that could be seen in a KOH prep
what is the difference between ectothrix and endothrix hair invasion
ectothrix is outside the hair shaft
endothrix is inside the hair shaft
name one genus of fungus which causes ringworm
name one genus of fungus which exhibits dimorphism
name of genus of fungus which is a frequent contaminant