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Reproduction and Classification of Fungi

Reproduction and Classification of Fungi. Most Fungi Reproduce Using Spores. Spores – lightweight particles that are surrounded by a protective covering and become new fungi Fungi produce many more spores than will ever become fungi. Spores are carried easily through the air and water.

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Reproduction and Classification of Fungi

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  1. Reproduction and Classification of Fungi

  2. Most Fungi Reproduce Using Spores • Spores – lightweight particles that are surrounded by a protective covering and become new fungi • Fungi produce many more spores than will ever become fungi. • Spores are carried easily through the air and water.

  3. Fungus Spores Spores being released from a type of fungus called a “puffball”. The fungus produces more spores than will ever be needed to ensure the survival of the species.

  4. Spore Production • Fungi produce spores in structures called fruiting bodies. • Fruiting bodies – type of hyphae that grow out of the fungus and produce spores. • Fruiting bodies differ from fungus to fungus.

  5. Various Fruiting Bodies

  6. Asexual vs. Sexual Reproduction • Remember – • asexual reproduction = one parent • sexual reproduction = two parents • When conditions are favorable (lots of food/moisture), fungi will produce asexually • When conditions are unfavorable, fungi can produce sexually to produce spores that may be more suited to survive

  7. The Exception….Yeast • Yeast are unicellular fungi. • They reproduce by budding. • Budding – small yeast cell grows from the body of a large yeast cell

  8. Classification of Fungi • Fungi are classified into groups based on: • Shape of their fruiting bodies • Ability to reproduce sexually • There are four groups • Threadlike fungi • Sac fungi • Club fungi • Imperfect fungi

  9. Group #1 - Threadlike • Fungi produce spores in their threadlike hyphae • Can reproduce asexually and sexually • Contains about 600 different species of mold • Example – Rhizopus (bread mold)

  10. Group #2 - Sac • Produce spores in structures that look like sacs • Can reproduce asexually and sexually • Contains over 30,000 species including yeast, morels, and truffles • Example – bird’s nest fungi

  11. Group #3 - Club • Produce spores in structures that look like clubs • Can reproduce asexually and sexually • Contains about 25,000 species of mushrooms, bracket fungi, and puffballs • Example – shitake mushroom

  12. Group #4 - Imperfect • Not known to reproduce sexually • Reproductive hyphae differ • Contain 25,000 species • Example - Penicillium

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