Fungus and Diseases Flashcards
What are the two types of fungus?
Yeasts and mould
What is mould?
An aerobic multi-cellular eukaryote that grow via hyphae.
What is yeast?
An aerobic or anaerobic unicellular eukaryote shaped ovally or rod that form colonies.
Describe sexual hyphae reproduction
Sexual spores form by joining 2 hyphae together
Describe aseuxal hyphae reproduction
Produced by the formation of fruiting bodies at the end of hyphae, called fertile hyphae.
Describe yeast reproduction
Yeast grow single cells that produce daughter cells either by binary fission or budding.
What is an endogenic infection?
- An infection caused by a commensal
- An example is candida albicans
What is an exogenic infection?
- An infection caused by direct or indirect contact from an infected source
- Ringworm from a cat
What is Candida Albicans?
- Normal commensal yeast
- Disease occur when the yeast overgrows
What is Malassezia Pachydermatis?
- Fungus that causes itchy, red, greasy skin lesions
- Strong cheesy smell
- Diff-quik used to stain
What is ringworm?
- A zoonotic fungal infection that infects skin, hair, nails and claws.
What is trichophyton mentagrophytes?
- Fungus that causes ringworm
- From hedgehogs
- Affects rodents, horses and dogs
What is microsporum canis?
- A fungus that causes ringworm
- Infects dogs and cats
What is microsporum gypseum?
- A fungus that causes ringworm
- Found in soil
What is the clinical appearance of ringworm?
- Alopecia
- Ring-like appearance
- A perimeter of infected scaly itchy skin
