Exam 2: Misc Fungi Flashcards

1
Q

what are the 3 types of saprophytic filamentous fungi

A

Zygomycets
Hyaline fungus
Phaeoid Fungus

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2
Q

Saprophytic fungi with broad, thin-walled, irregular hyphae

A

Zygomycets

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3
Q

Saprophytic fungi with narrow, thick-walled, parallel hyphae

A

Hyaline and phaeoid fungus

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4
Q

T/F Diseases caused by saprophytic filamentous fungi rarely infect healthy animals

A

T

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5
Q

Diseases caused by Saprophytic filamentous fungi

A
  1. Abortion
  2. pneumonia
  3. nasal granulomas
  4. guttural pouch infection
  5. Subcutaneous infection
  6. keratitis
  7. disseminated disease
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6
Q

Fast growing mold

A

Aspergillus

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7
Q

Where does aspergillus invade

A

Damaged tissues and blood vessels

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8
Q

Aspergillus infection in birds

A

Respiratory infections

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9
Q

Aspergillus casuses what infection in dogs and horses

A
  1. Nasal
  2. Sinus
  3. guttural pouch
  4. Keratitis
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10
Q

Aspergillus causes _____ in german shepherds?

A

Disseminated aspergillosis

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11
Q

What does aspergillus infection cause in ruminants

A

Abortion

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12
Q

How does aspergillus enter the host

A

inhalation or ingestion

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13
Q

What is Mycotic rumenitis

A

Following rumen acidosis, because fungi are resistant to acid, acid damages mucosa

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14
Q

What is chronic sinusitis

A

Follows inhalation of molds

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15
Q

What is mycotic keratitis

A

corneal abrasion by straw in horses, infection of damaged cornea with mold

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16
Q

What type of algae causes prototheca

A

Achlorophyllous algae

17
Q

Where is prototheca found in the environment

A

Widespread in warm, nutrient-rich, aqueous environments

18
Q

What are he two spp. of Prototheca tat are associated with disease

A

P. zopfii

P. wickerhamii

19
Q

Prototheca infection in dogs causing disseminated disease

20
Q

Prototheca infection in cattle causing mastits

21
Q

Prototheca infection in cats causing cutaneous disease

A

P. zopfii and p. wickerhamii

22
Q

Water molds

23
Q

what are the two spp. of oomycetes

A

Pythium insidiosum and Lagenidium spp

24
Q

What does Oomycetes infection cause in dogs

A

Cutaneous and GI disease

25
What does Oomycetes infection cause in horses, cats, and humans
Cutaneous Dz
26
"Swamp cancer" in horses
P. insidiosum
27
Emergent dz of hibernating bats that infects skin of the muzzle, ears, and wings
White-nose syndrome caused by pseudogymnoascus destructans
28
Dutaneous dz in amphibians associated with global pop. declines
Chytridiomycosis caused by Batrachochytrium dendrobatidis
29
Nasal polyps and cutaneous cysts in mammals and birds
Rhinosporidium
30
Pneumonia in animals with immunodeficiency
Pneumocystis
31
Secondary metabolites produced by fungi that are capable of causing diseae in humans and animals
Mycotoxins
32
What are the 5 major mycotoxins
1. Aflatoxins 2. Ergot alkaloids 3. Fumonisin 4. Ochratoxin 5. Zearalenone