biology 21.2
TRANSCRIPT
Classification of Fungi 21.2
Zygospore
• Resting spore that contains zygotes formed during the sexual phase of a mold’s life cycle.
Rhizoid• In fungi, a root like hypha that penetrates the
surface of an object; in mosses, a long, thin cell that anchors the moss to the ground and absorbs water and minerals from the surrounding soil.
Stolon
• In fungi, a stem like hypha that runs along the surface of an object; in plants, a long, trailing stem that produces roots when it touches the ground.
Gametangium
• Gamete-producing structure found in mold.
Conidium
• Tiny fungal spore that forms at the tips of specialized hyphae in ascomycetes.
Ascus
• Structure within the fruiting body of an ascomycetes in which two of different mating types fuse.
Ascospore
• Haploid spore produced within the ascus of ascomycetes.
Budding
• Asexual process by which yeasts increase in number; process of attaching a bud to a plant to produce a new branch.
Basidium
• Spore-bearing structure of a basidiomycetes.
Basidiospore • Spore in basidiomycetes that germinates to
produce haploid primary mycelia.
Key Concept
• Zygonmycetes have life cycles that include a zygospore.
Key Concept
• The phylum Ascomycota is named for the ascus, a reproductive structure that contains spores.
Key Concept
• The Deuteromycota are fungi that cannot be placed in other phyla because researchers have never been able to observe a sexual phase in their life cycles.