Fungi are “Fun Guys!”Breast Cancer Awareness Day???

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Traits common to all Fungi (why they get their own Kingdom)

• Heterotrophic

• Filamentous bodies

• Cell walls containing chitin

• Decomposers, THANK Goodness!!!

• Most: multicellular (ex.?), non-motilehttp://images.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/Edible_Fungi.jpg/790px-Edible_Fungi.jpg&imgrefurl=http://commons.wikimedia.org/wiki/Image:Edible_Fungi.jpg&h=599&w=790&sz=204&hl=en&start=20&tbnid=1udRwQaoS7jLNM:&tbnh=108&tbnw=143&prev=/images%3Fq%3Dfungi%26gbv%3D2%26hl%3Den

Fungi Nutrition

• Sx for nutrition– Hyphae – threadlike filaments

• Basic unit of sx of funit– Mycelium

• tangled web of hyphae

• External (extracellular) digestion (vomit to eat)

– Secrete . . . . – Absorb . . . .

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Cover 2000 acres of forest1500-2400 years old

Fungi Reproduction

• Reproductive Organs– The mushroom YOU eat

• Asexual – Fragmentation/budding– Spores by mitosis– Spore is a reproductive cell that can develop into a

new organism– Budding in Yeast (What m process occurs?)

• Sexual– Hyphae fuse (spores from two genetically different

nuclei) (What m process occurs?)

Fungi Reprodution Cont.

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Stop note taking for a while . . . Enjoy the ride

Types of Hyphae– Stolons – on the surface of host

• Example – bread mold– Rhizoids – anchor stolons– Haustoria – penetrate host for direct

absorbtion– Hyphae without septa – no cell wall– Hyphae with septa – cell walls between cells

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Three (4) Phyla of Fungi- catagorized by their type of sexual reproduction

• Zygomycota

• Ascomycota

• Basidiomycota

• (Deuteromycete)– No sexual reproduction

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each of the fungi phyla.

• Zygomycetes– Zygosporangia is the sexual sx

• Although asexual repro more common– Mycelia on surface are stolons– Hyphae that anchor the stolons are rhizoids

• Hyphae have no walls– Ex. Black bread mold

Jason's Bread Mold

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• Ascomycetes– Sexual reproductive sx is ascus

• Via meiosis haploid spores form in– Hyphae divided by walls (septa)– Ex.: Cup fungi, yeast, truffles

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• BasidiomycetesWhat you know as

“mushrooms”

Deuteromyceteshttp://images.google.com/imgres?imgurl=http://io.uwinnipeg.ca/~simmons/16cm05/1116/31-11-Basidiomycetes.jpg&imgrefurl=http://io.uwinnipeg.ca/~simmons/16cm05/1116/16fungi.htm&h=510&w=760&sz=90&hl=en&start=1&um=1&tbnid=2Jh7_SsHYTnoWM:&tbnh=95&tbnw=142&prev=/images%3Fq%3Dbasidiomycetes%26um%3D1%26hl%3Den

http://www.bioweb.uncc.edu/1110Lab/notes/notes1/labpics/Penicillium%20notatum.JPG

Begin Notes Again

Parasitic Fungi

• Athletes Foot• Ringworm

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Beneficial Fungi• Yeast• Penicillin• Aroma of cheeses

• Lichen – mutualistic relationship between fungus and photosynthetic algae

• #1 job of fungus: DECOMPOSITION

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