Download Fungi

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Decomposition wikipedia , lookup

Transcript
FUNGI
A speck of dust lands on a cricket’s back. But this is no
ordinary dust; it’s alive! Tiny glistening threads emerge from
the dust and begin to grow into the cricket’s moist body. As
they grow, the threads release chemicals that slowly dissolve
the cricket’s tissue. Soon, the cricket’s body is little more
than a hollow shell filled with a tangle of threads. Then the
threads begin to grow up and out of the dead cricket,
producing long stalks with knob at their tips. When a knob
breaks open, it will release thousands of dust like specks,
which the wind can carry to new victims.
Characteristics
• Eukaryotes
• Have cell wall
• Heterotrophs
• Use spores to reproduce
• Decomposers
Fungi structure
• Fungi are arranged in structures called
hyphae.
• Hyphae- are branching, threadlike tubes that
make up the body of multicellular fungi.
Fungi Structure
Obtaining food
1. Fungus grows hyphae into the
food.
2. Digestive enzymes ooze from the
hyphae into the food.
3. The chemicals break down the
food.
4. Nutrients are absorbed.
Reproduction
• Reproduce by making spores in a structure
called fruiting bodies.
• Asexual
– Budding
• Sexual
Reproduction
Sexual reproduction in bread mold
Asexual reproduction
Fungi Classification
• Sac Fungi
– Produce spores in structures that look like sacs.
Yeast, morels, and truffles.
• Club Fungi
– Produce spores in tiny clublike structures.
Mushrooms, rusts, and puffballs.
• Zygote Fungi
– Produce very resistant spores. Fruit and bread
molds.
Sac Fungi
Club fungi
Zygote fungi
Role of Fungi in Nature
•
•
•
•
•
•
Food
Environmental recycling
Disease-fighting fungi (Antibiotic Penicillin)
Disease -causing fungi
Fungus-plant associations
Lichens (fungus & algae or fungus & bacteria)
Environmental Recyclers
Food
Alexander Fleming 1929
Disease-Fighting
Penicillin notatum
Fungus-Plant Root Associations
Lichens
Fungus and either algae or autotrophic bacteria
Fungus- provide shelter
Algae or bacteria- provides minerals, water and food
Review
Assessment
Class Project
• Design a “Wanted” poster for a mold that has
been ruining food in your kitchen. Present
the mold as a “criminal of the kitchen.”
Include detailed descriptions of the mold’s
physical characteristics, what needs to grow,
how it grows, and any other details that will
help your family identify this mold. Propose
ways to prevent new molds from growing in
your kitchen.