"Freeze-Dried Specimens"

Deuteromycete. “Black mold”. Produces citric acid. Common airborne contaminant. Causes aspergillosis. Incubation temperature 25°C. Sabouraud dextrose agar growth medium.

Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (+) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.

Yeast reproduction

One each of foliose, crustose, and fruticose lichen. The foliose and crustose lichens are any of a wide variety of species; the fruticose lichen is either cladonia or reindeer moss. All samples are field-collected and come in a 4 oz. labeled jar.

Use Sordaria fimicola to allow students to visualize the results of crossing over during cell division.

Ascomycete. Baker’s yeast. Reproduction by budding. Incubation temperature 30°C. YM agar growth medium.

Fungal Processes

Investigate mushroom structures

Zygomycete. Dung Mold. Mating strain; cross with Mucor heimalis (-) for zygospore formation. Incubation temperature 25°C. Potato dextrose agar growth medium

Deuteromycete. Produces penicillin. Incubation temperature 25°C. Malt extract agar growth medium.

Deuteromycete. Biological control organism. Traps nematodes. Incubation temperature 25°C. Cornmeal agar growth medium.

Mendel’s Law of Independent Assortment made easy.

A quick and colorful demonstration of Mendel’s Law of Segregation.

Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (-) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.

Investigate mold characteristics

Deuteromycete. Causes thrush, candidiasis. Multiplies by budding. Forms germ-tubes in serum cultures. Incubation temperature 37°C. Potato dextrose agar growth medium. Note: Pathogen.