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Chapter 31 (Fungi)
N/A
28
Biology
Undergraduate 2
09/29/2012

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Term
Chytridomycota (book)
Definition
aquatic, flagellated fungi that produce haploid gametes in sexual reproduction or diploid zoospores in asexual reproduction
Term
Zygomycota (book)
Definition
Multinucleate hyphae lack septa, except for reproductive structures; fusion of hyphae leads directly to formation of a zygote in zygosporangium, in which meiosis occurs just before it germinates; asexual reproduction is most common
Term
Glomeromycota (book)
Definition
Form arbuscular mycorrhizae, Multinucleate hyphae lack septa, reproduce asexually
Term
Ascomycota (book)
Definition
In sexual reproduction, ascospores are formed inside a sac called an ascus; asexual reproduction is also common
Term
Basidiomycota (book)
Definition
In sexual reproduction, basidiospores are borne on club-shaped structures called basidia; asexual reproduction occurs occasionally
Term
Hyphae
Definition
continuous or branching tubes filled with cytoplasm and multiple nuclei or long chains of cells joined end to end and separated by septa
Term
Mycelium
Definition
mass of connected hyphae
Term
Cell walls of fungi
Definition
formed with chitin
Term
monokaryotic
Definition
hypha that has only one nucleus
Term
Dikaryotic
Definition
hypha with two nuclei
Term
heterokaryotic
Definition
hypha has duclei that are derived from genetically distinct individuals
Term
homokaryotic
Definition
if nuclei are genetically similar
Term
dikaryon stage
Definition
stage that occurs before parental nuclei fuse and form diploid nucleus.
Term
Spores
Definition
reproductive vessels of fungi, can be suspended in the air for long periods of time
Term
Asexual reproduction in fungi
Definition
default, most common
Term
Sexual reproduction in fungi
Definition
usually only occurs conditions of environmental stress
Term
Phyla of fungi
Definition
Chytridiomycota, Zygomycota, Ascomycota, Basidiomycota, Deuteromycota
Term
Chytrids
Definition
live in water, have flagellated spores, and probably gave rise to other groups (Example: causes major die-off of frogs)
Term
Zygomycete
Definition
formed when 2 hyphae mate sexually, nuclei fuse to form diploid zygospore. (Example: Bread mold)
Term
Zygospore
Definition
can remain dormant for a long time, can disperse and germinate
Term
Ascomycetes
Definition
Saclike case called ascus is formed (contains spores) after hyphae of different mating types fuse (Examples: Morel, yeasts)
Term
Basidomycetes
Definition
(examples: mushrooms, puffballs, stinkhorns)
Term
Deuteromycetes
Definition
called Imperfect Fungi, sexual structures hae not been observed
Term
Lichens
Definition
formed by fungi that live with photosynthetic algae or bacteria... SYMBIOTIC PARTNERSHIP
Term
Mycorrhizae
Definition
Fungus-Plant association, found in roots, help plants grow
Term
Corn Smut
Definition
basidiomycete pathogen
Term
Helpful fungual parasite
Definition
kills grasshoppers, used by farmers as natural pesticide
Term
Fungi harmful to humans
Definition
athlete's foot, ringworm, Yeast infections, histoplasmosis
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