Ascomycota

Definition

Ascomycota is a phylum of fungi known for their sac-like structures called asci, where spores are produced. This group includes yeasts, molds, and morels.

5 Must Know Facts For Your Next Test

1. Ascomycota produce sexual spores called ascospores within specialized cells known as asci.
2. This phylum includes important organisms such as Saccharomyces cerevisiae (baker's yeast) and Penicillium species.
3. Ascomycetes can reproduce both sexually and asexually.
4. They play crucial roles in decomposing organic material and nutrient cycling.
5. Some Ascomycota form symbiotic relationships with algae to create lichens.

Review Questions

• What type of spores do Ascomycota produce?
• Name two economically important fungi that belong to the Ascomycota phylum.
• Describe one ecological role of Ascomycota in nature.

Related terms

Basidiomycota: A phylum of fungi characterized by producing spores on basidia; includes mushrooms.

Ascus: A sac-like structure in which ascospores are formed in Ascomycota.

Lichen: A symbiotic association between a fungus (usually an Ascomycete) and an alga or cyanobacterium.