Lichens
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Lichens PowerPoint PPT Presentation


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Lichens. John Pai Grayson Perry. Lichens are organism composed with fungus (usually ascomycete) and algae (usually chlorophta or cyanobacteria) Algae provides sugar from photosynthesis Fungus provides water and protection from the environment.

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Lichens

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Lichens

Lichens

John Pai

Grayson Perry


Lichens

  • Lichens are organism composed with fungus (usually ascomycete) and algae (usually chlorophta or cyanobacteria)

  • Algae provides sugar from photosynthesis

  • Fungus provides water and protection from the environment.

  • physiology and biochemistry of lichens are very different from those of the isolated fungus and alga in culture.


Lichens

  • The dominant partner is a fungus. Fungi are incapable of making their own food. They usually provide for themselves as parasites or decomposers.


Reproduce

Reproduce

  • Apothecia, Perithecia, and Mazedia are all reproductive structures. Each one produces spores which disperse and can produce a new fungus, but each of these structures looks and functions differently.


Websites

Websites

  • http://www.lichen.com/biology.html

  • http://en.wikipedia.org/wiki/Lichen

  • http://www.ucmp.berkeley.edu/fungi/lichens/lichens.html

  • http://ocid.nacse.org/lichenland/html/apothecia.html

  • http://ohioline.osu.edu/sc195/029.html


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