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Fungi (Fungi - general features (Ecology (Ubiquitous (distributed widely…

- - - - Air
      - Water
      - Soil
      - Decaying organic debris (saprophytic)
- - - - Hyphae can be septate or nonseptate
    - - Identified by diagnostic tests
    - - Support spore-bearing structures
        
        Fungal spores
        
        Different to bacterial endospores (not as durable)
        
        Useful for indentification
        
        (2 varieties) Asexual and sexual spores
    - - "Roots" penetrates into growth medium
  - - - Depends on environmental conditions (temp, CO2, nutrients, etc)
- - - - Cultivated mushrooms
      - Mycoprotein
- - - - Dermatomycosis (Superficial or cutaneous mycosis)
        
        Cutaneous
        
        Dermatophytes
        
        Epidemiological groups:
        Geophilic - Soil associated
        Zoophilic - Animal
        Anthropophillic - Human
        
        Cause of ringworm (dermatophytosis)
        
        Utilises keratinised tissues
      - Subcutaneous mycosis
    - - Invades internal organs
      - Highly virulent fungi
    - - Immune deficient patients
        
        Predisposing factors
        
        Debilitated animals
        Prolonged antibiotic treatment
        Immunosuppression
        High fungal spore exposure
        Persistent moisture on skin
      - Yeast infections
        
        Lipophillic yeast
        
        Oily areas of skin and ears
        
        Cryptococcus spp
        
        Disease in people + animals
        
        Problem in immunocompromised
        
        Not true zoonoses, from environment not between species
  - - - Toxigenic species grow on crop, pasture or stored feed
    - - Aflatoxin B1: Most potent natural carcinogen
      - Targets liver
    - - Gangrenous symptoms
      - Convulsive symptoms