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MYCOLOGY NOTES > Part 1 > Flashcards

Part 1 Flashcards

1
Q

characteristics of fungi

A

Obligate aerobe
Thallophytes (true nuclei) (heterotrophic members of the plant family that lack stems and roots)
Lack chlorophyll
Larger and with more complex morphology than bacteria
Chittin in the cell wall
Ergosterol in the cell membrane
Saprophytic
Lack of susceptibility to the antibacterial antibiotics

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2
Q

Intertwining structure composed of tubular filaments known as Hyphae

A

Mycelium

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3
Q

Two parts of mycelium

A

Vegetative or thallus portion
Reproductive or aerial part

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4
Q

Grows in or on a substrate and absorbs water and nutrients

A

Vegetative portion or thallus

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5
Q

contains fruiting bodies that produce reproductive structures (conidia or spores); extends above the agar surface

A

reproductive or aerial part

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6
Q

microscopic unit of fungi

A

Hypha

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7
Q

Different kinds of hypha

A

Septate
Aseptate/coenocytic/sparsely septate
Dermatiaceous
Hyaline

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8
Q

Contain cross walss

A

Septate

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9
Q

All fungi are septate except

A

Zygomycetes

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10
Q

continous, without cross walls

A

Aseptate/Coenocytic

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11
Q

Example of aseptate

A

Zygomycetes ( RHIZOPUS, MUCUR, ABSIDIA)

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12
Q

Dark colored

A

Dermatiaceous

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13
Q

Colorless

A

Hyaline

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14
Q

Mass or colony of hyphae

A

Mycelium

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15
Q

Organized body of hypae

A

Fruiting body (e.g mushroom)

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16
Q

Types of fungi

A

Monomorphic fungi
Dimorphic fungi

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17
Q

Parts of fungi

A

Mycelium
Hypha

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18
Q

One phase only

A

Monomorphic fungi

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19
Q

Capable of two phases

A

Dimorphic fungi

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20
Q

Infective to man

A

Mycelial or mold at 25 to 30 degrees

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21
Q

Tissue or invasive phase

A

Yeast at 37 degrees

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22
Q

REMINDERRRR‼️‼️‼️‼️

MOLD IN THE COLD ❄️❄️
YEAST IN THE HEAT🔥🔥

A

Mold- 25 to 39
Yeast- 37

23
Q

Phases of mycology

A

Mold
Yeast

24
Q

multicellular; flufty, cottony: woolly, or powdery mycelial mass, grows at 25°C

A

Mold

25
Q

unicellular; moist, creamy, opaque or pasty, resembling bacterial colony, grows from 35°C to 37°C

A

Yeast

26
Q

Yeast

Reproduce asexually thru formation of

A

Blastoconidia (budding)

27
Q

Yeast

Reproduce sexually thru formation of

A

Ascospores and basidiospores

28
Q

Sexual fungi reproduction

A

Perfect fungi
Basidiospores
Ascospores
CLEISTOTHECIUM
Oospores
Zygospores

29
Q

fungi that exhibit sexual phase

A

Perfect fungi

30
Q

contained in a saclike ASCUS

A

Ascospores

31
Q

large, round, multicellular structure that surrounds the asci until it ruptures, releasing ascospores

A

Cleistothecium

32
Q

contained in a club-shaped BASIDIUM

A

Basidiospores

33
Q

fusion of cells from two separate, nonidentical hyphae

A

Oospores

34
Q

Fusion of two identical cells arising from the same hypha

A

Zygospores

35
Q

Asexual fungi reproduction

A

Imperfect fungi
Sporangiospores
Conidia

36
Q

Do not exhibit sexual phase

A

Imperfect fungi

37
Q

asexual spores contained in sporangia (sacs) and produced terminally on sporangiophores or aseptate hyphae

A

Sporangiospore

38
Q

UNIQUE TO THE ZYGOMYCETES

A

Sporangiospores

39
Q

asexual spores produced either singly or multiply in long chains or clusters by specialized
vegetative hyphae (conidiophores)

A

Conidia

40
Q

secondary segments of the conidiophores which produce conidia

A

Phialides

41
Q

Two types of conidia

A

Macroconidia
Microconidia

42
Q

Macroconidia characteristics

A

large, usually septate
Club, oval, or spindle shaped
Thick or thin walled
Spiny (echinulate) or smooth surface

43
Q

Microconidia

A

small, unicellular
Round, elliptical, or pyriform (pear) shape
Sessile microconidia borne directly on hyphae

44
Q

Borne on the end of a short conidiophore

A

Pedenculate microconidia

45
Q

Develop as daughter cell buds off the mother cell and is pinched off

A

Blastoconidia /Blastospores

46
Q

Thick-walled, resistant, resting spores produced by “rounding up” and enlargement of the terminal hyphal cells

A

Chlamydioconidia/ Chlamydospores

47
Q

Chlamydioconidia/ Chlamydospores Germinate into a new organism when favorable environmental conditions exist

A

Terminal
Sissile
Intercalary

48
Q

Blastoconidia of yeasts (including Candida) may elongate to form

A

Pseudohyphae

49
Q

Simple fragmentation of the mycelium at the septum into rectangular-, cylinder-, or cask-shaped spores

A

Arthroconidia /Arthrospores

50
Q

Thick walled spores which may be adjacent or alternate in arrangement

A

Arthroconidia /Arthrospores

51
Q

Arthroconidia/Arthrospores useful for identification of

A

Coccidioides immitis and Geotrichum candidum

52
Q

barrel-shaped arthroconidia alternating with empty disjunctor cells

A

Coccidioides immitis

53
Q

forms hockey stick shaped arthroconidia on cornmeal agar

A

Geotrichum candidium

54
Q

Useful identification characterstic of Coccidioides immitis and Geotrichum candidium

A

Arthroconidia/Arthrospores

MYCOLOGY NOTES (3 decks)

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