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Elsevier Mycology (RVSP) > 3. The Opportunistic Molds > Flashcards

3. The Opportunistic Molds Flashcards

(51 cards)

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1
Q

Common spp. of Acremonium

A

Acremonium falciforme

Acremonium kiliense

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2
Q

Macroscopic:

Rapid grower
White, cottony colonies

A

Acremonium spp.

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3
Q

Microscopic: hyaline, septate hyphae

A

Acremonium spp.

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4
Q

Microscopic: unbranched, solitary, erect phialides formed directly on the hyphal tips

A

Acremonium spp.

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5
Q

Microscopic: conidia usually in clusters or fragile chains

A

Acremonium spp.

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6
Q

Drugs for Acremonium spp. that exhibit good in vitro activity

A

Newer azoles (voriconazole, posaconazole)

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7
Q

Drug for Acremonium spp. with higher MIC than voriconazole

A

Itraconazole

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8
Q

Drug for Acremonium spp. with a relatively low MIC

A

Caspofungin

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9
Q

Normal mycoflora of commodities (rice)

A

Fusarium

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10
Q

Medically important Fusarium spp.

A

Fusarium oxysporum
Fusarium chlamydosporum
Fusarium solani

OCS

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11
Q

Disease caused by Fusarium spp.

A

Fusariosis

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12
Q

Macroscopic:

Rapid grower
Woolly to cottony
Flat
Spreading

A

Fusarium spp.

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13
Q

Microscopic:

Macroconidia - 2 or more cells , thick walled, smooth, cylindrical or sickle (canoe) shaped

A

Fusarium spp.

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14
Q

Common Geotrichum spp.

A

Geotrichum candidum
Geotrichum fici
Geotrichum clavatum

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15
Q

Macroscopic:

  • Rapid growing
  • White, dry
  • Powdery to cottony colonies resembling ground glass
A

Geotrichum spp.

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16
Q

Macroscopic: colony may be yeastlike

A

Geotrichum spp.

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17
Q

Optimal growth temp of Geotrichum spp.

A

25°C

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18
Q

Microscopic: has Arthroconidia that is either rectangular or rounded at the ends

A

Geotrichum spp.

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19
Q

Microscopic: coarse true hyphae observed, may be undifferentiated

A

Geotrichum spp.

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20
Q

Most common Paecilomyces spp.

A

Paecilomyces lilacinus

Paecilomyces variotii

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21
Q

May resemble Penicillium spp. macroscopically and microscopically

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A

Paecilomyces spp.

22
Q

Macroscopic:

Rapid grower
Flat, powdery, velvety

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A

Paecilomyces spp.

23
Q

Thermophilic Paecilomyces spp.

24
Q

Microscopic:

  • Septate, hyaline hyphae
  • Branched conidiophore
  • Phialides swollen at the base and taper toward the apex
Study These Flashcards
A

Paecilomyces spp.

25
Microscopic: usually grouped in pairs or brushlike clusters
Paecilomyces spp.
26
Microscopic: conidia are unicellular, hyaline to darkly colored, and form long chains
Paecilomyces spp.
27
Thermal dimorph Penicillium spp.
Penicillium marneffei
28
More common Penicillium spp.
Penicillium chrysogenum | Penicillium citrinum
29
Fungi particularly virulent in patients with AIDS
Penicillium spp.
30
Macrosopic: Rapid growing Velvety, woolly, cottony
Penicillium spp.
31
Microscopic: Flask-shaped phialides
Penicillium spp.
32
Microscopic: Form brushlike clusters
Penicillium spp.
33
Microscopic: Conidia are round, unicellular, form unbranching chains at the tips of phialides
Penicillium spp,
34
Contains both hyaline and dematiaceous fungi species
Scopulariopsis spp.
35
Common Scopulariopsis spp.
``` Scopulariopsis brevicaulis (hyaline) Scopulariopsis cinerea (dematiaceous) ```
36
Causes onychomycosis on the toe nails
Scopulariopsis spp.
37
Macroscopic: Grows moderately rapidly Granular to powdery
Scopulariopsis spp.
38
Microscopic: - Septate hyphae - Conidiophores are hyphae-like and simple or branched
Scopulariopsis spp.
39
Enumerate the most and less common Aspergillus spp.
Most common: A. fumigatus A. flavus A. niger Less common: A. clavatus A. glaucus A. nidulans
40
3 clinical settings for Aspergillosis
Toxin production Allergic states Opportunistic infections
41
Allergic reaction caused by Aspergillus spp.
Allergic bronchopulmonary aspergillosis
42
Toxin produced by Aspergillus spp.
Aflatoxin
43
Macroscopic: Rapid grower (matures in 3 days)
Apergillus spp.
44
How many days will Aspergillus spp. mature?
3 days
45
Aspergillus spp. that grows well at 45°C
A. fumigatus
46
Optimal growth temp of A. fumigatus
45°C
47
Microscopic: - Septate hyphae - Unbranched conidiophore from a "foot cell"
Aspergillus spp.
48
Microscopic: Phialides cover the surface of the vesicle entirely ("radiate" head) or partially only at the upper surface ("columnar" head)
Aspergillus spp.
49
Microscopic: Phialides are either uniseriate (attached to the vescile directly) or biseriate (attached to the vesicle via a supporting cell) metula
Aspergillus spp.
50
Microscopic: conidia from radial chains
Aspergillus spp.
51
Filamentous fungus in plant debris and soil
Acremonium spp.

Elsevier Mycology (RVSP) (13 decks)

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