Botany | Three Major Groups of Fungi | Dr. Sara Browning | PBA Fall 2024

Zygomycetes

a fungal group that is not very pathogenic; complex life cycle consisted on sexual and asexual fungal groups...fungi spend most of their time as haploids; black bread mold;

Phylum Ascomycota

sac fungi (yeasts, morels, truffles)

Phylum Basidiomycota

club fungi (mushrooms, puffballs, shelf fungi, rusts, smuts)

Zygomycetes life cycle

Ascomycota life cycle

Basidiomycota life cycle

Zygomycetes examples

Pin molds

Bread molds

Pin molds

Zygomycota

Bread molds

Zygomycota

Zygosporangium

Zygomycetes sexual structure

Zygosporangium

thick-walled reproductive structure formed from the fusion of the cytoplasm of the mycelia of two neighboring fungi

Zygosporangium

Zygomycetes meiosis site

Aseptate, coenocytic

Zygomycetes hyphae

Aseptate coenocytic

hyphae that have no cross-walls and are multinucleate

Pin-like sporangia

Zygomycetes asexual reproduction

Ascomycota examples

Molds, mildews, cup fungi, yeasts, morels, truffles, asexual fungi

Ascoma with dikaryotic hyphae

Ascomycota sexual structure

ascoma

a multicellular fruiting body of the cup fungi

dikaryotic hyphae

hyphae with two nuclei

cup fungus

Morels

Truffle

ascus

Ascomycota

ascus

the reproductive structure where spores develop on sac fungi

septate

Ascomycota hyphae

septate hyphae

hyphae whose cells are divided by septa

conidia

Ascomycota asexual reproduction

conidia

asexual spores

mold

asexual fungi; conidia only; no ascomata

mildew

asexual fungi; conidia only; no ascomata

Basidiomycota examples

Mushrooms, toadstools, bracket or shelf fungi, puffballs, earthstars, rusts and smuts

basidioma with dikaryotic hyphae

Basidiomycota sexual structures

basidioma

the multicellular fruiting bodies of the Basidiomycetes often with a protective layer and lined with basidium

mushroom

brackets or shelf fungus

Puffball

Earthstar

Birds nest fungus

Stinkhorn

basidium

Basidiomycota meiosis site

basidium

spore-bearing structure of a basidiomycete

septate

Basidiomycota hyphae

absent in most

Basidiomycota asexual reproduction