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MYCOLOGY1 > Structure of Dermatophytes > Flashcards

Structure of Dermatophytes Flashcards

1
Q

Organisms that may cause cutaneous mycoses are called

A

Dermatophytes

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2
Q

absent microconidia

A

E. floccosum

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3
Q

Sparse, clavate, sessile microconidia

A

M. canis
M. gypseum

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4
Q

Rare, chlamydospore-like microconidia

A

M. audouinii

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5
Q

Grape-like clusters microconidia

A

T. mentagrophytes

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6
Q

Tear-shaped, birds on fence microconidia

A

T. rubrum

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7
Q

Balloon-shaped microconidia

A

T. tonsurans

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8
Q

Infects skin and nails

A

Epidermophyton

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9
Q

Infects hair and skin

A

Microsporum

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10
Q

Infects hair, skin, and nails

A

Trichophyton

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11
Q

Differential Tests on Trichophyton spp. (HUT)

M
R
T

A

Differential Tests on Trichophyton spp.

M + + -
R - - -
T - + +

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12
Q

Poor growth in rice grains

A

M. audouinii

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13
Q

Good growth in rice grains

A

M. canis
M. gypseum

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14
Q

(+) Wood’s lamp fluorescence
(364 nm)

A

M. audouinii
M. canis

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15
Q

(-) Wood’s lamp fluorescence
(364 nm)

A

M. gypseum

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16
Q

Cylindrical macroconidia

A

T. tonsurans

17
Q
  • Pencil-shaped macroconidia
  • red pigment on Cornmeal agar
A

T. rubrum

18
Q

Cigar-shaped macroconidia

A

T. mentagrophytes

19
Q
  • Chlamydoconidia-like swellings,
  • bizzare-shaped
A

M. audouinii

20
Q

Broadly spindle-shaped with rounded ends macroconidia

A

M. gypseum

21
Q
  • Spindle-shaped
  • tapered ends
  • echinulate thick walls
A

M. canis

22
Q
  • Broad/spatulate/ beaver’s tail ,
  • contains 2-5 cells by perpendicular cross walls
A

E. floccosum

MYCOLOGY1 (13 decks)

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