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Characteristics of Fungi
Eukaryotic, heterotrophic, external digestion, cell wall composed of chitin not cellulose,
Most fungi has asexual but also go thru sexual reproductions. What are three different types of asexual reproduction fungi go thru?
Hyphae have 6 jobs, shape and morphology determined that. What is mycelia?
They are the masses of intertwined hyphae that are visible without magnification
What is a rhizoid?
A type of Hyphae that are embeded in the material of the fungus - kind of like a root - not a root but a root like sturcture that supports the fungi and secretes enzymes to digest food
What is a haustoria:?
A type of hyphae (of parasitic fungi only) their job is to penetrate the host cell and robs the host of cytoplasm to obtain nutrition
What is Aerial hyphae?
They are not embedded - they absorb oxygen produce spores and spread the fungi
How do aerial hyphae spread the fungi?
They are in the air - the spores are release and each spore can start a new fungi colony
What are types of sporophores?
sporangeophores - produces enclosed spores
conidiophore - produces nonenclosed spores
Sporangiophores with a sac is called?
ascus - sac that contains spores
ascospore - the individual spore with in the ascos????????
What are septa?
The septa is a dividing plate that divides the hyphae into separate cells. Permeable and cytoplasm can go thru all the hyphae.
What is the difference between a septate hyphae and a coenocytic hyphae?
The septate hyphae are separated. The coenocytic does not have division btw cells and are multinucleate. The septate hyphae have just one nucleus in the hyphae cell.
What is dimorphism?
This is the ability of a fungi to change from a parasitic fungi to a saprophytic fungi
What is the difference btw a parasite and a saprophyte?
parasites feed of off living things and a saprophyte feeds off of dead organic material
What is the name of the largest living organism that is in Oregon? What is it?
Armillaria - huge field of mushrooms
Can fungi be plant parasites?
Yes - main job of fungi is to decompose - so can they be a parasite of a plant - yes definately. American Elm suffered from parasitic fungus Dutch Elm disease - field crops can be destroy
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