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Lab Exercise 11:
Fungi
This gives new
meaning to the old saying,
“There’s a fungus
among us!”
Station 1. Rhizopus stolonifer macroscopic
Rhizopus spoiled fruit(Station 1 continued)
Station 2. Rhizopus asexual and sexual sporesAsexualsporangio
zygosporangium
Sexual
(containing zygospores)
Opposite mating types join hyphae
Asexual
Station 3. Peziza (common cup fungus)
Station 4. Morchella, the morel
Station 5. Yeast (Saccharomyces cerevisiae)
a. Method of reproduction?
Asexual or sexual?
Conditions?
b. Fermentation by-product used here?
c. Fermentation by-product used here?
Answers: a. budding, asexual, good conditions
b. CO2 gas
c. ethyl alcohol
Station 6. Claviceps purpurea
(ergot of rye disease)
Station 7. Mushrooms
a. Name of this part?
b. Structures? Spores produced? Asexual or sexual?
c. structure?
d. Name of this part?
Answers: a. pileus b. lamellae with sexual basidiospores c. annulus d. stipe
Station 8. Puffballs
Station 9. Bracket fungi
Station 10. Corn Smut
Station 11. Tinea (ringworm)
Station 12: Candida albicansCandida albicans (pathogenic yeast) can cause oral thrush
Station 13. Penicillium macroscopic
Asexual Spores
1. Rhizopus sporangia and sporangiospores
Asexual Spores
2. ‘’Budding yeast’ blastospores
Asexual Spores
3. Corn Smut chlamydospores
Asexual Spores
4. Geotrichium candida arthrospores
Asexual Spores
5. Penicillium conidiospores
Sexual Spores
1. Rhizopus conjugation
immature
mature zygosporangia
Sexual Spores
2. Peziza ascospores
8
Sexual Spores
3. Schizosaccharomyces ascospores
Sexual Spores
4. Coprinus mushroom basidiospores
Wet Mount: Live Yeast cells budding
Fungal Microcultures
Penicillium
Rhizopus nigricans