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BILD 3 Lecture 6
Fungi
14
Biology
Undergraduate 2
08/30/2010

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Term
Important detrimental aspects of fungi
Definition

  • mold, mildew, dry rot
  • human health: pathogens, toxins, allergens
  • plant pathogens

Term
polyphycetic group
Definition

do not share common ancestor

 

yeasts: single-celled fungi

Term
lhycelia
Definition
multicelluar, a mass of underground filaments that form the body of a fungus
Term

Haphae are primarily _____

Hyphae are sometimes ________

Definition

primarily haploid

heterokaryotic

Term
karyogamy
Definition
Sexual reproduction - hours, days, or even centuries may pass before the occurence of karyogamy. During karyogamy, the haploid nuclei fuse, producing diploid cells.
Term
Asexual reproduction
Definition

Molds produce haploid spores by mitosis and form visible mycelia.

 

Other fungi that can reproduce asexually are yeasts.

Term
Ascomycetes
Definition

-live in marine, freshwater, and terrestrial habitats.

-commonly called ascocarps

Term
Basidomycetes
Definition

-include mushrooms, puffballs, and shelf fungi, mutualists, and plant parasites.

-basidiomycetes are also called club fungi

 

Term

Fungal life strategies

 

degrade deal organsims

Definition
saprophytes
Term

Fungal life strategies

 

attack living organisms

Definition
Parasites
Term

Fungal life strategies

 

coexist with another organism

Definition
mutualists
Term

Fungal mutualisms:

 

Lichens

Definition
Fungi that grow in association with cyanobacteria or single-celled members of the green algae
Term

Fungal mutualism

 

Mycorrhizae

Definition
Fungi that live in close association with plant roots
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