designed by pyeongsug kim ©2009 sibio@att.netsibio@att.net si session topic 12 fungi (& a...
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Designed by Pyeongsug Kim ©2009 sibio@att.net
SI SessionSI Session
Topic 12Topic 12
Fungi (& a little more Cyanophyta)
Spring 2010
For Dr. Hughey’s Bio 3 Class
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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
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
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.
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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HyphaeHyphae-Filamentous strands that make up the fungal thallus -collective hyphae = mycelium-Transport the food and feed-may grows to reproductive structure.
________ 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
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?
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.
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
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)
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
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