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Fungi
Plants without chlorophyll?
What is a
fungi?
Fungi are
eukaryotes.
Fungal Cell Structure
Most fungi are multicellular and their cells are arranged in long strands called
hyphae. The hyphae look similar to a filamentous algae under a microscope.
Fungal Cell Structure
Fungi cells are surrounded
with a cell wall made of
chitin, the same stuff that
insect and spider
exoskeletons are made
out of.
Fungal Cell Structure
Something like bread mold has hyphae that are spread out making it look fuzzy. A
mushroom has its hyphae packed together so tightly that it looks solid.
What is a Fungi?
Fungi are heterotrophs.
Fungi Eating
Fungi are not plants, that means they
have to eat. However, they don’t have a
stomach or a mouth. How do you think
they get their food?
Fungi Eating
Fungi digest their food outside of themselves and then absorb the nutrients and
energy!
What is a Fungi?
Most fungi reproduce with spores.
Spores
Spores are
produced in the
fruiting body of
the fungi. It is
usually only the
fruiting body that
we see.
Spores
A spore is a single cell that if it lands in an
appropriate environment will begin to divide
eventually becoming a new organism.
The hard part for the fungi is ensuring the spores
have a chance to grow. There are several
different strategies.
Mass
Production
Using
The
Environment
Actually
Shooting
Away
The
Spores
Parasitic
Zombie
Control!
Asexual or Sexual Reproduction?
Both!?
Asexually, a fungi can simply
make spores that match its own
DNA.
BOTH!?
When the conditions
are favorable, two fungi
can grow together and
mix their DNA creating
a new generation with greater
variation.
BOTH!?
Some fungi like yeast don’t
even bother with spores, they
simply bud. Meaning they grow
offspring off their own body.
BOTH!?
What would it look like if a human
underwent budding?
BOTH!?
What would it look like if a human
underwent budding?
BOTH!?
What would it look like if a human
underwent budding?
Classification of Fungi
Fungi are classified by the shape of their
spore producing structures.
Threadlike Fungi
These fungi are...threadlike!
Sac Fungi
Yeast, morels, truffles, are some examples. They have...sacks.
Club Fungi
Including puffballs and mushrooms, they have a club shape.
Imperfect Fungi
These fungi are tiny and have random often fuzzy appearances.
Importance of Fungi
Many fungi are decomposers,
mainly of plant material.
Importance of Fungi
Many fungi are in our food.
Fungi can be used to make medicine.
In 1928, Alexander
Fleming was
growing bacteria
when he got some
mold growing on his
petri dishes.
Fungi can be used to make medicine.
He realized that the
bacteria around the
mold were being
killed by something
the mold were
producing.
Fungi can be used to make medicine.
This was the birth of
antibiotics. Many
chemicals that we
use to kill bacterial
infections are
chemicals produced
by fungi.
Fungi can cause disease.
There are many
examples of fungi that
can cause damage to or
even kill plants,
including many
important crops.
Fungi can cause disease.
Fungi can also infect animals including us. Athlete's foot and ringworm are both
fungal infections.