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Mycology & Virology > Intro to Mycology > Flashcards

Intro to Mycology Flashcards

1
Q

knot of twisted hyphae

A

nodular bodies

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2
Q

Gomori methylene or Masson Fontana

general staining for the identification of fungi & fungal elements

A

Gomori methylene stain

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3
Q

Outer cell wall does not participate in the process

A

enteroblastic

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4
Q

Hyphae Parts

  • above the surface
  • aids in sexual reproduction
A

aerial hyphae

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5
Q

Formation of septum stimulates new
growth (chains)

A

thallic conidiogenesis

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6
Q

What are the 2 stains used to differentiate hyaline & phaeoid?

A
  • Gomori methylene stain
  • Masson Fontana stain
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7
Q

Reproduction

Asexual:

Sexual:

A

Asexual: mitosis

Sexual: meiosis

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8
Q

reproduce by budding (blastoconidium) & fission

A

yeast

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9
Q

What is the Greek word for mushroon?

A

mykes

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10
Q

Formed by the daughter cell by pushing
through a minute pore in the parent cell

A

poroconidia

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11
Q

Give 5 hyalohyphomycosis

A
  • Acremonium
  • Aspergillus
  • Fusarium
  • Penicillium
  • Rhizopus
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12
Q

What phase needs 37C with increased CO2

A

yeast phase

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13
Q

Union of cytoplasm from two parent mycelia

A

plasmogamy

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14
Q

woolly & fuzzy appearance in culture doe to aerial hyphae

A

molds

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15
Q

Hyphae Types

  • frequent cross walls
  • 1 nucles/division
A

septate

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16
Q

identified through biochemical & molecular assays

A

yeasts

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17
Q

____ produce haploid spores by mitosis and form visible
mycelia

A

molds

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18
Q
  • ability to exist in two forms depending on temperature
    conditions
  • dimorphic fungi
A

dimorphism

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19
Q

Parent cell wall layers are involved in blastic
daughter cell development

A

Holoblastic

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20
Q

causes hyalohyphomycosis

A

hyaline hyphae

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21
Q
  • unicellular
    • forms a bacteria-like colony
A

yeast

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22
Q

intertwining structures made of hyphae

A

mycelium

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23
Q

coiled hyphae

A

spirals

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24
Q
  • Glass-like or transparent appearance
  • Non or lightly pigmented
A

hyaline hyphae/moniliaceous

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25
paired process of karyogamy and meiosis produce?
genetic variation
26
Have both yeast and mold forms in the same culture
polymorphism
27
sterile structures that hold up the phialide
metulate
28
Sawtooth or tooth-ringed appearance
annelloconidia
29
**Hyphae Types** Aseptate is also known as?
1. sparsely septate 2. coenocytic 3. pauciseptate
30
What phase needs 25C with ambient air
Mold phase
31
decomposers
saprophytic/saprobes
32
5 importance of fungi
* food nutrition * food production * antibiotic source * symbiosis * saprophytic
33
_Gomori methylene or Masson Fontana_ * hyphae turns from pink into red * mycelium becomes brown
Masson fontana stain
34
Parent cell enlarges to form a septum
Blastic conidiogenesis
35
Give an example of spiral
Trichophyton mentagrophytes
36
usually described as "cottony", "velvety" or "dry"
vegetative hyphae
37
extended portion of the conidiophore
vesicles
38
multicellular & vegetative
molds
39
Secondary segments born from conidiophore/sporangiophore
phalide/annelide
40
**Hyphae Parts** * absorbs water & nutrients * extends downward into the medium
vegetative hyphae
41
Conidia that is formed from an annellide
annelloconidia
42
root-like processes found in the rhizopus
rhizoids
43
Give an example of racquet
Epidermophyton floccosum
44
Requires the fusion of hyphae from different mating types
Sexual reproduction
45
Conidia emerges from a phialide
phialoconidia
46
Enlarged, dome-shaped structure at the tip of the conidiophore/sporangiophore
vesicle/columella
47
* haploid nuclei fuse to produce diploid cells * diploid phase is short-lived & undergoes meiosis to produce haploid spores * nuclear fusion
karyogamy
48
**Importance of Fungi** wine
Saccharomyces cerevisiae
49
moose antler hyphae
favic chandelier
50
formation of conidia from the hyphae of 1 organism
asexual reproduction
51
fruiting bodies with spores inside
reproductive hyphae
52
darkly pigmented due to melanin
phaeoid hyphae
53
* simplest form of blastic conidiogenesis * barrel-shaped * produced by budding
blastoconidia
54
**Structures Associated with Hyphae** stalks for conidia or sporangium
conidiophore/sporangiophore
55
tube-like structures
hyphae
56
hyaline hyphae is also known as?
moniliaceous
57
phaeoid hyphae is also known as?
dematiaceous
58
fungus which grows in association with the roots of a plant in a symbiotic or mildy pathogenic relationship
*mycorrhizae*
59
_Gomori methylene or Masson Fontana_ exhibits a dark stain
Gomori methylene stain
60
asexual structures that form at the hyphae or conidiophore/sporangiophore
conidia/sporangium
61
causes chromoblastomycosis or phaeohyphomycosis
phaeoid hyphae
62
Give an example of pectinate body
Microsporum audouinii
63
capable of feeding on decaying matter
saprophytic/saprobes
64
Give an example of polymoprhism
Exophiala spp.
65
haploid nuclei pair off two to a cell
dikaryotic
66
fundamental units of fungi
hyphae
67
Another antibiotic source except from *Penicillium notatum*
*Penicillium marneffei*
68
Give 2 examples of favic chandelier
Trichophyton schoenleinii Trichophyton violaceum
69
easily identified microscopically
molds
70
Give 5 chromoblastomycosis
* Alternaria * Bipolaris * Exophialia * Wangiella * Cladosporium
71
Forms into a diploid
heterokaryon
72
fusion of 2 conidia
plasmogamy
73
Fungi use what sexual signaling molecules yo communicate their mating type
pheromones
74
**Hyphae Parts** produce conidia/spores
aerial hyphae
75
enlarged & club-shaped areas
racquet
76
**Hyphae Parts** Vegetative hyphae is also known as?
thallus
77
the haploid nuclei from each parent do not fuse right away → the haploid nuclei coexist in the mycelium
heterokaryon
78
Give 2 examples of nodular bodies
Microsporum canis Trichophyton mentagrophytes
79
broken comb-like
pectinate body

Mycology & Virology (4 decks)

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