Exam 2: Misc Fungi Flashcards Preview

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Flashcards in Exam 2: Misc Fungi Deck (32)
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1
Q

what are the 3 types of saprophytic filamentous fungi

A

Zygomycets
Hyaline fungus
Phaeoid Fungus

2
Q

Saprophytic fungi with broad, thin-walled, irregular hyphae

A

Zygomycets

3
Q

Saprophytic fungi with narrow, thick-walled, parallel hyphae

A

Hyaline and phaeoid fungus

4
Q

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

A

T

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
6
Q

Fast growing mold

A

Aspergillus

7
Q

Where does aspergillus invade

A

Damaged tissues and blood vessels

8
Q

Aspergillus infection in birds

A

Respiratory infections

9
Q

Aspergillus casuses what infection in dogs and horses

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

Aspergillus causes _____ in german shepherds?

A

Disseminated aspergillosis

11
Q

What does aspergillus infection cause in ruminants

A

Abortion

12
Q

How does aspergillus enter the host

A

inhalation or ingestion

13
Q

What is Mycotic rumenitis

A

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

14
Q

What is chronic sinusitis

A

Follows inhalation of molds

15
Q

What is mycotic keratitis

A

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

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

A

P. zopfii

20
Q

Prototheca infection in cattle causing mastits

A

P. zopfii

21
Q

Prototheca infection in cats causing cutaneous disease

A

P. zopfii and p. wickerhamii

22
Q

Water molds

A

Oomycetes

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
Q

What does Oomycetes infection cause in horses, cats, and humans

A

Cutaneous Dz

26
Q

“Swamp cancer” in horses

A

P. insidiosum

27
Q

Emergent dz of hibernating bats that infects skin of the muzzle, ears, and wings

A

White-nose syndrome caused by pseudogymnoascus destructans

28
Q

Dutaneous dz in amphibians associated with global pop. declines

A

Chytridiomycosis caused by Batrachochytrium dendrobatidis

29
Q

Nasal polyps and cutaneous cysts in mammals and birds

A

Rhinosporidium

30
Q

Pneumonia in animals with immunodeficiency

A

Pneumocystis

31
Q

Secondary metabolites produced by fungi that are capable of causing diseae in humans and animals

A

Mycotoxins

32
Q

What are the 5 major mycotoxins

A
  1. Aflatoxins
  2. Ergot alkaloids
  3. Fumonisin
  4. Ochratoxin
  5. Zearalenone