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Mycology and Virology > Mycology Introduction > Flashcards

Mycology Introduction Flashcards

1
Q

Unicellular, budding, moist, opaque, smooth, creamy, pasty colony; biochemically diagnosed and seen at body temperature (35-37°C).

A

Yeast

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2
Q

Multicellular, fragmented; colonies are woolly, fuzzy, waxy, glabrous, velvety; morphologically diagnosed at room temperature.

A

Molds

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3
Q

Fungal reproduction involving Conidiogenous cells (Phialides and Annelides); reproduction forms: anamorph, Conidia, Blastospore, Chlamydospore, Sporangiospore.

A

Asexual Reproduction

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4
Q

Fungal reproduction involving two species of fungi; reproduction forms: teleomorph, Ascospore, Zygospore, Oospore, Basidiospore.

A

Sexual Reproduction

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5
Q

Fundamental unit of a mold.

A

Hyphae

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6
Q

With cross walls.

A

Septate

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7
Q

Absence of cross walls.

A

Aseptate/Coenocytic

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8
Q

Nonpigmented or lightly pigmented (stains with lactophenol cotton blue).

A

Hyaline/Monoliaceous

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9
Q

Pigmented by dark melanin.

A

Phaeoid/Dematiaceous

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10
Q

Mass of hyphae that make up the thallus of a mold.

A

Mycelium

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11
Q

Vegetative growth of a fungus, including an interwoven mass of hyphae.

A

Thallus

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12
Q

Hyphae growing on the surface of agar for nutrient acquisition.

A

Vegetative Mycelium

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13
Q

Filamentous extension above the colony for distribution of spores for reproduction.

A

Aerial Mycelium

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14
Q

Hyphae produced above the surface of the agar media.

A

Aerial Mycelia

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15
Q

Hyphae produced on the surface or extending into the agar media.

A

Vegetative Mycelia

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16
Q

Asexual form of fungal sporulation (imperfect state).

A

Anamorph

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17
Q

Conidium derived from the fragmentation of specialized hyphae.

A

Arthroconidium

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18
Q

Fruiting structure that contains asci.

A

Ascocarp (Ascoma)

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19
Q

Sexual spore formed within an ascus following meiosis.

A

Ascospore

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20
Q

Saclike structure that contains ascospores, characteristic of Ascomycetes.

A

Ascus (pl., Asci)

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21
Q

Sexual spore formed as an outgrowth of a basidium.

A

Basidiospore

22
Q

Structure that contains basidiospores (e.g., mushroom).

A

Basidium

23
Q

Asexual spore formed by budding of the hyphal, pseudohyphal, or yeast cell.

A

Blastoconidia

24
Q

Thick-walled resting or survival structure (also called chlamydoconidia).

A

Chlamydospore

25
Q

Enclosed ascocarp composed of layers of hyphae that contain randomly dispersed asci.

A

Cleistothecia

26
Q

Funnel-shaped structure at the apex of a phialide.

A

Collarette

27
Q

An extension of the sporangiophore into the base of the sporangium.

A

Columella

28
Q

Asexual spores formed by fragmentation of mycelia into rectangular, barrel-shaped, or cask-shaped, thick-walled spores. Examples: Trichosporum, Coccidioides.

A

Arthroconidia

29
Q

Sexual spores produced in a round, saclike structure that usually contains two to eight spores.

A

Ascospores

30
Q

Outgrowth of a conidium or spore that is the beginning of a hypha; no constriction at the point of attachment. Germ tubes are typically three to four times the length of the original yeast cell. Example: Candida albicans.

A

Germ Tube

31
Q

Tubelike structures that are the fundamental units of the fungus; many join to form the mycelium, which forms the colony of the fungus.

A

Hyphae

32
Q

Hyphae containing cross-walls.

A

Septate Hyphae

33
Q

Hyphae lacking cross-walls.

A

Aseptate Hyphae

34
Q

Asexual conidia produced by simple budding from mother cells, hyphae, or pseudohyphae; characteristic of yeasts and yeastlike fungi.

A

Blastoconidia

35
Q

Flask-shaped or vase-shaped structure that produces phialoconidia.

A

Phialide

36
Q

Thick-walled asexual conidia formed during unfavorable conditions and germinate when the environment improves; greater in diameter than hyphae and may be terminal, intercalary, or sessile.

A

Chlamydoconidia

37
Q

Hyphal tip where chlamydoconidia form.

A

Terminal Chlamydoconidia

38
Q

Chlamydoconidia formed within the hyphal strand.

A

Intercalary Chlamydoconidia

39
Q

Chlamydoconidia formed on the sides of hyphae.

A

Sessile Chlamydoconidia

40
Q

Chains of cells produced by budding that may resemble true hyphae but are constricted at the septa and form branches that begin at the septation.

A

Pseudohyphae

41
Q

A mass of pseudohyphae.

A

Pseudomycelium

42
Q

Large, round, multicellular structure that surrounds the asci and ascospores until the structure ruptures, releasing the ascospores.

A

Cleistothecium

43
Q

Dome-shaped, swollen sporangiophore tip that extends into the sporangium.

A

Columella

44
Q

Specialized, vegetative hyphae that act as stalks on which conidia are found.

A

Conidiophore

45
Q

Asexual structures that form on the sides of hyphae or conidiophores; may be produced singly or in groups. Macroconidia are large and multicelled, whereas microconidia are usually small and unicellular.

A

Conidia

46
Q

Spindle-shaped conidium that is wider in the middle and narrows toward either end.

A

Fusiform

47
Q

Pear-shaped conidia.

A

Piriform

48
Q

Large, round, thick-walled structure that contains spores characteristic of Coccidioides immitis in tissue.

A

Spherule

49
Q

Asexual spore contained in a saclike structure in which spores are formed and held. The sporangium is borne on a specialized hyphal stalk.

A

Sporangiophore

50
Q

With knoblike projections. Example: Histoplasma.

A

Tuberculate

51
Q

Enlarged structure at the end of a conidiophore or sporangiophore that may bear phialides. Example: Aspergillus.

A

Vesicle

Mycology and Virology (16 decks)

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