designed by pyeongsug kim ©2009 [email protected]@att.net si session topic 12 fungi (& a...
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SI SessionSI Session
Topic 12Topic 12
Fungi (& a little more Cyanophyta)
Spring 2010
For Dr. Hughey’s Bio 3 Class
Picture from http://media.photobucket.com/image/mushroom/Kustomdzines/mushroom-plate1.jpg
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Sporophytes(2n)
Gametophytes(n) Female/male
Spores(n)
Basic Life cycleBasic Life cycle(Asexual and Sexual) (Asexual and Sexual)
Gamates(n)
Zygotes(2n)
Asexual(meiosis)
Sexual(mitosis)
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Sporangia
Gametangia
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Picture from http://www.biologie.uni-hamburg.de/b-online/library/webb/BOT201/AntherArch/Sporophytes-3.htm Designed by Pyeongsug Kim, ©2009
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Kingdom FungiKingdom Fungi
Chytridiomycota Zygomycota Ascomycota Basidiomycota
Allomyces. Rhizopus
Neurospora
Saccharomyces
MorchellaAgaricus
Puccinia
Ustilago
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Sexual to form basidia.
Asexual by budding, conidiospores, fragmentation.
Sexual to form asci.
Asexual by budding, conidiospores, fragmentation
-Sexual to form a zygosporangium.
-Asexual by nonmotile spores.
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ReproductionReproduction
Chytridiomycota Zygomycota Ascomycota Basidiomycota
-Sexual to form a sporophyte.
-Asexual by zoospores.
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ChytridiomycotaChytridiomycota-Primitive fungi-Allomyces ~ Water mold
Gametophytes(n)
Sporophytes(2n)
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Gametophytes(n)-Contain female and male gametangia
Gametangia -produce gametes(n) by mitosis
male gametangium
female gametangium
Release gametes(n)
Sporophytes(2n) -Contain sporangia.
Picture from http://www.botany.hawaii.edu/faculty/wong/Bot201/chytridiomycota/Chytridiomycota.htm
Phylum ____________Phylum ____________Genus ____________Genus ____________Allomyces
Chytridiomycota
sporangiaSporagia -produce spores(n) by meoisis.
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Phylum ____________Phylum ____________Genus ____________Genus ____________Allomyces
Chytridiomycota
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Gametophytes?Sporophytes?Haploid(n)?Diploid(2n)?
Gametophytes(n)
Picture from http://www.ucmp.berkeley.edu/fungi/allomyces.jpg http://ocid.nacse.org/classroom/fungi/bot461/images/Chytridiomycota/Allomyces/allomycesgametangia2.jpg
Sporophytes(n)
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A:B:C:D:
E:F:G:H:
Cap(pileus)GillRingStalk,Stipe
SporesVolvaHypa(e)Mycelium
Mushroom structureMushroom structure
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Picture from http://www.mentalfloss.com/blogs/archives/18918
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HyphaeHyphae-Filamentous strands that make up the fungal thallus -collective hyphae = mycelium-Transport the food and feed-may grows to reproductive structure.
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________ or coenocytic (without septa)
-Long, continuous cells that are not divided by septa.
Septated
Aseptate
________ HyphaeCells are divided by cross-walls (septa).
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Aseptated hyphae
Septum
Septated hypae
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___________-Rootlike filament-Absorb water & nutrient
Rhizoids
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Phylum ___________AscomycotaGenus ____________Morchella
Phylum ____________Genus ____________
BasidiomycotaAgaricus
Phylum ___________Genus ____________Amanita
Basidiomycota Phylum ____________Genus ____________
ChytridiomycotaAllomyces
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Gametangia
femalemale
Sporangia
Sporangiophore
Phylum ____________Genus ____________
ChytridiomycotaAllomyces
Gametangia
femalemale
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Be able to identify an ascomycete and basidiomycete if you saw one.
Phylum ______________Ascomycota
Genus ______________
Phylum ______________
Genus ______________
Basidiomycota
Agaricus
Saccharomyces (yeast)
Is it Asexual or Sexual?
Most of the organism reproduce by __________.Budding
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Phylum ______________
Genus ______________
Zygomycota
Rhizopus
Sexual? Asexual?
What is the structure name?_______________
What is inside?___________
Zygosporangium
ZygosporesHyphae
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Both are Rhizopus.
Sporangium Sporangiophores
Zygosporangium
Gametangium
Sexual? Asexual? Sexual? Asexual?
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Gametangia Zygote Zygosporangium
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Phylum ______________
Genus ______________
Basidiomycota
Coprinus
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Gill__________
_______________Basidiospores
BasidiumBasidiospores
Sexual? Asexual?
_________________________
Basidium- A small, specialized club-shaped structure typically bearing four basidiospores at the tips of minute projections.
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The fertile, often spore-bearing structure of a plant that does not bear seeds.
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Fruit ????Fruit ????
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___________________the fruiting body of a basidiomycete which bears its spores on special cells
Basidiocarp(Basidioma)
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Phylum ______________AscomycotaGenus ______________Penicillum
Phylum ______________AscomycotaGenus ______________Aspergillus
Both are _______________.conidial fungi
Sexual? Asexual?
Sexual? Asexual?
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_____________________The chains of asexual spores, formed on a conidiophore. Conidia
______________Conidum/Conidia
Conidiophore______________
_____________________Spore-producing structuresConidiophore
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Phylum ___________AscomycotaGenus ____________Morchella
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Phylum ___________AscomycotaGenus ____________Peziza
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Basidia/Basidospores
Conidiospores/Conidia/Conidiophores
Asci/Ascospores
Sexual? Asexual?
Sexual? Asexual?
Sexual? Asexual?
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What are they?__________________Lichens
Reproduction method?__________________Fragmentations
What are they consist of?__________________Algae + Ascomycota or Basidiomycota.
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What type of lichen?
_______________ _______________ _______________crustose
foliose
fruticosefruticose
_______________
_______________Crustose & folise
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What are lichens consist of?__________________Algae + Ascomycota or Basidiomycota.
Algal cells
Fungal filaments (Hyphae)
_____________Algal layer
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Mycorrhiza: “Fungus Roots”Mycorrhiza: “Fungus Roots”
Ectomycorrhiza
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Phylum ______________
Genus ______________
Cyanophyta
Oscillatoria
Reproduce by _____________Fragmentation
___________: A part of a filament of a cyanobacterium that detaches and grows by cell division into a new filament.
Hormogonia
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Phylum ______________
Genus ______________
Cyanophyta
Anabaena
What is it? Heterocyst
Function? Nitrogen fixation
Phylum ______________
Genus ______________
Cyanophyta
Nostoc
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AkineteFunction?Resting spores: Cells that
are resistant to unfavorable conditions.
HeterocystFunction? Nitrogen fixation
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The akinetes of Nostoc are usually located halfway between the heterocysts. This differs from Anabaena, where the akinetes are normally adjacent to the heterocysts. (Wikipedia)
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In the Dr. Hughey’s Email
1. Cells in filaments with mucilage, but no large sheath........................................................ Anabaena1. Cells in filaments that are embedded in a large gelatinous sheath that is globular in shape........... Nostoc
Jeff
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Anabaena Nostoc