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Mushrooms & Myth: Perseus Foxfire Fungi: Friend or Foe?

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Presentation on theme: "Mushrooms & Myth: Perseus Foxfire Fungi: Friend or Foe?"— Presentation transcript:

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2 Mushrooms & Myth: Perseus

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4 Foxfire

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6 Fungi: Friend or Foe?

7 Fungi Plant Diseases Human & Animal Mycoses Mycotoxins Spoilage Allergic Responses Mycorrhizal Assoc. Biological Control Cheese RipeningIndustrial Enzymes Antimicrobics Fermentation Friend Foe

8 Decay / Nutrient Cycling vs. Rot & Spoilage

9 Food Source

10 Food Source: Fermentation

11 Toxins Aflatoxin St. Anthony’s Fire (Ergot)

12 Diseases

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15 Medicines Penicillin Cyclosporin

16 Symbioses

17 Fungi: General Characteristics

18 Fungi versus fungi “fungus” is used inclusively for a heterogenous group of organisms that have traditionally been studied by mycologists “Fungi” refers to the organisms in the Kingdom Fungi, the true fungi, also called the “Eumycota”

19 Are fungi bacteria? NO Eukaryotic Different cell wall – Glucans, chitin, other polysaccharides – As opposed to peptidoglycan

20 Not plants – why? – No chlorophyll – No leaves, stems, roots – Primary carbohydrate storage as glycogen – Cell wall composition (not cellulose) (Language from botany) Fungi: General Characteristics

21 Not animals – why? – Absorptive nutrition – (unicellular) – Non-motile Fungi: General Characteristics

22 Eukaryotic Heterotrophic – Absorptive nutrition – Need free water to move nutrients – Some omnivorous, other more restricted Diversity of growth conditions Reproduction: – Asexual & sexual – Via spores

23 Filamentous or unicellular (yeasts) Definite cell walls Nonmotile (some motile reproductive cells) Most saprobes – Some parasites – Some predacious Fungi: General Characteristics

24 Fungi: Structural Terms Hypha (pl. Hyphae) Mycelium (pl. Mycelia) Septum (pl. Septa)

25 Fungi: Structural Terms Yeast Pseudohypha Germ Tube

26 Sexual Reproduction in Fungi


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