Molds and Fungi

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/21

encourage image

There's no tags or description

Looks like no tags are added yet.

22 Terms

1
New cards

Structure of trichospororn spp.

2
New cards

Stains live fungi—-

PAS

3
New cards

LPCB stain for fungi

Phenol ___________

Glycerol ___________

Cotton blue ___________ 

Lactic acid is a fungi ___________

word bank: moisture keeper | preserver | color stains | disinfectant

  1. disinfectant 

  2. moisture keeper

  3. color stains 

  4. preserver


4
New cards

A negative stain for Cryptococcus neoformans?

  • Its been replaced by an antigen test

  • Has limited sensitivity


India Ink (nigrosine stain)

5
New cards

What does KOH in a wet mount do when used on cultures collected for fungi morphology?

a. nothing

b. KOH digest keratin in hair/skin for better visibility

c. KOH digest keratin in hair/nails for better visibility

d. enhances visibility by enlarging fungi

c. KOH digest keratin in hair/nails for better visibility

6
New cards

These are characteristics of:

asexual through spores/conidia

Has hyphae (mass of mycelium)

Macrocondia and microcondia

Multicellular (eukaryotic)

Grows @ 25C-30C (RT)

Mold

7
New cards

These are characteristics of:

Asexual via budding/fission

Unicellular (prokaryotic)

Grows @ 35-37C body temp.

Normal flora BUT shouldn’t be at sterile locations

Yeast

8
New cards
<p><span style="background-color: transparent;"><em>macrocondia(large, asexual multicellular fungal)</em> have <strong><u>tapered ends</u></strong></span></p>

macrocondia(large, asexual multicellular fungal) have tapered ends

Microsporum canis

9
New cards
<p><span style="background-color: transparent;">from soil, a <em>macroconidia that</em> has <strong><u>rounded ends</u></strong>; </span><span>cinnamon color colonies</span><span style="background-color: transparent;"> on SDA agar</span></p>

from soil, a macroconidia that has rounded ends; cinnamon color colonies on SDA agar

M. gypseum

<p>M. gypseum</p>
10
New cards
<p><span style="background-color: transparent;">small oval microconidia w/ “birds on a wire” hyphae (microscope); white (colonies) with deep red tint</span></p>

small oval microconidia w/ “birds on a wire” hyphae (microscope); white (colonies) with deep red tint

Trichophyton rubrum

11
New cards
<p><span style="background-color: transparent;">clustered microconidia and spiral hyphae ; </span><span>white velvet, fluffy (colonies)</span></p>

clustered microconidia and spiral hyphae ; white velvet, fluffy (colonies)

Trichophyton mentagrophytes

<p>Trichophyton mentagrophytes</p>
12
New cards
<p>Microscopic: Yeast cells w/ multiple buds <strong><mark data-color="#55583f" style="background-color: rgb(85, 88, 63); color: inherit;">“ship’s wheel“</mark></strong></p>

Microscopic: Yeast cells w/ multiple buds “ship’s wheel“

Paracoccidioides brasiliensis

<p>Paracoccidioides brasiliensis</p>
13
New cards
<p>Found in Mississippi River; bird/bat poop soil</p><p><strong><mark data-color="#6f6f5f" style="background-color: rgb(111, 111, 95); color: inherit;">“Spelunker’s disease.”</mark></strong></p><p>Culture: white/brown fluffy colonies</p><p>Microscopic: Tuberculate (spiky) macroconidia</p><p></p>

Found in Mississippi River; bird/bat poop soil

“Spelunker’s disease.”

Culture: white/brown fluffy colonies

Microscopic: Tuberculate (spiky) macroconidia


Histoplasmosis capsulatum

<p>Histoplasmosis capsulatum</p>
14
New cards
<p>Identify species:</p><ol><li><p><span>Rhinocerebral</span> mucoromycetes<span> Disseminated disease</span></p></li></ol><p><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Structural: Erect sporangiophore, contains rhizoids, Sporangia is intact.&nbsp;</span></p><p></p>

Identify species:

  1. Rhinocerebral mucoromycetes Disseminated disease

        Structural: Erect sporangiophore, contains rhizoids, Sporangia is intact. 


Mucor

<p>Mucor</p>
15
New cards
<p>Culture: large spherules</p><p><span>Found in the southwestern US, Central and South America</span></p><p>Microscopic: Barrel shaped arthroconidia w/ empty cells between</p>

Culture: large spherules

Found in the southwestern US, Central and South America

Microscopic: Barrel shaped arthroconidia w/ empty cells between

Coccidiodes immitis

<p>Coccidiodes immitis</p>
16
New cards
<p>Identify species:</p><p>Budding cells, germ tubes(possible)</p>

Identify species:

Budding cells, germ tubes(possible)

Canidia Albicans

<p>Canidia Albicans</p>
17
New cards
<p>Lollipop conidia</p><p>Microscopic: round yeast w/ broad based buds</p>

Lollipop conidia

Microscopic: round yeast w/ broad based buds

Blastomyces dermatiditis

<p>Blastomyces dermatiditis </p>
18
New cards
<p>Oval/cigar shaped yeast cells</p><p>Rosette conidia</p><p>“Rose handler’s disease“</p>

Oval/cigar shaped yeast cells

Rosette conidia

“Rose handler’s disease“

Sporothrix schenckii

<p>Sporothrix schenckii</p>
19
New cards
<p>Identify species:</p><p><span>Can be frequently found as the cause of mycotic keratitis</span></p><p><span>&nbsp;&nbsp;&nbsp;Associated with contact lenses. It has abundant banana shaped macroconidia, singly and in clusters</span></p>

Identify species:

Can be frequently found as the cause of mycotic keratitis

   Associated with contact lenses. It has abundant banana shaped macroconidia, singly and in clusters

Fusarium spp.

20
New cards
<p>Identify species:</p><p><span>Rarely causes infection. It has been associated with chronic fungal sinusitis. Growth is demonstrated in shades of blue and green – bread mold</span></p>

Identify species:

Rarely causes infection. It has been associated with chronic fungal sinusitis. Growth is demonstrated in shades of blue and green – bread mold

Penicillium spp

21
New cards
<p>Identify species:</p><p><span>Second most common fungal infection. Candida the most common. High mortality rate in immunocompromised patients. Associated with patients having bone marrow transplantation. A. fumigatus grows at 42°C. Long sporangiophore with broad sporangium</span></p>

Identify species:

Second most common fungal infection. Candida the most common. High mortality rate in immunocompromised patients. Associated with patients having bone marrow transplantation. A. fumigatus grows at 42°C. Long sporangiophore with broad sporangium

Aspergillus Fumigatus

22
New cards
<p>Bread mold</p>

Bread mold

Rhizopus