Unit H, Fungi

What is a common example of Zygomycota?

rhizopus stolonifer, black mold

What type of hyphae do Zygomycota have?

Coenocytic (no cross walls)

What strengthens zygomycota cell walls?

chitin

what are stolons

Hyphae that extend through substrate to find new nutrients. (Zygo)

What are sporangiophores?

Upright hyphae that produce sporangia, connected to stolon

What are sporangia?

Asexual reproductive structures that produce spores. (the black dot)

What are rhizoids?

Absorptive hyphae that anchor the fungus (roots)

When does sexual reproduction occur in Zygomycota?

Under adverse conditions (lack of food)

predominat phase of zygomycota

Asexual as haploid

What forms when opposite hyphae fuse in Zygomycota? (sexual)

gametangium

What is the result of fertilization in Zygomycota?

Zygospores (diploid)

What type of hyphae do Ascomycota have?

Acoenocytic: Septate (with cross walls)

Predominat phase of Ascomycota

Sexual phase

What is the fruiting body of Ascomycota called?

Ascocarp

What are asci?

Diploid cells where meiosis occurs

How many spores are produced in an ascus?

8 haploid ascospores

What are ascospores?

Haploid spores formed after meiosis and mitosis

What are conidiophores?

Structures that produce asexual spores, (asym)

What are conidia (conidiospores)?

asexual spores (asym)

What does “conidia” mean?

Dust (very small spores)

most common asymcycota

yeast.

What are Deuteromycota commonly called?

Imperfect fungi

Why are they called imperfect fungi? (deutro)

Only reproduce asexually

What type of spores do deutoromycota produce?

Conidiospores

What are Basidiomycota commonly called?

club fungi

What is the fruiting body of Basidiomycota?

Mushroom

What is primary mycelium? ( basidi)

haploid hypghae( + and -) , ecenocytic.

What is secondary mycelium?

Binucleate hyphae (two nuclei per cell)

Where does fertilization occur in Basidiomycota?

In basidia

Where are basidia located?

In the gills of the mushroom

How many spores are produced in a basidium?

4 haploid basidiospores

Which fungi have coenocytic hyphae?

Zygomycota

Which fungi have septate hyphae?

Ascomycota