Lab 8

BIOLOGY

Mycorrhizae

Fungi and plant roots.

Lichens

Fungi and green algae or cyanobacteria.

Body structure multicellular

Hyphae, septa, and mycelium.

Body structure single-celled

Yeasts.

Body structure

Chitin in cell walls, nonmotile - colonize new areas through hyphal growth.

Cryptomycetes

Parasites of protists & other fungi
• Unicellular with flagellated spores

Microsporidians

Parasites of protists & animals
• Reduced mitochondria
• Spores with harpoon-like organelle for infecting hosts (no flagella)

Chytrids

Decomposers, parasites, & mutualists
• Single-celled & colonial species
• Flagellated spores (zoospores)

Zoopagomycetes

Parasites of other fungi & protists, or commensal symbionts of animals
• Cause behavioral changes in insects
• Sexually-reproducing species produce zygosporangium

Mucoromycetes

Decomposers, parasites, pathogens, or mutualists with plants (some mycorrhizae)
• Also have zygosporangium – germinates into sporangium, which produces spores (n) through meiosis

Ascomycetes

Plant pathogens, decomposers, & symbionts (lichens or mycorrhizae)

Basidiomycetes

Decomposers, mutualists (mycorrhizae), & plant parasites

Basidium

Cell where meiosis & karyogamy happen

Basidiocarp

Fruiting body

Ascomycetes Asexual pathway

Conidia & conidiophores

Ascomycetes Sexual pathway

Asci, ascocarps, & ascospores