Relationships
After being turned down for the fifth time in a row, the fungus
Penicillium
chrysogenum
must remind himself that he is in fact, a "fungi". |
In a larger relationship sense, let's look at
P. chrysogenum in a
General Food Web of a Natural Ecosystem
By breaking down
detritus materials, P. chrysogenum and other
fungi convert complex carbon structures into more simple forms. This
makes them the decomposers of an ecosystem. Fungi produce
carbon dioxide through respiration, and they also leave behind
nutrients such as nitrogen and phosphorus in the soil.
These nutrients and gasses are then absorbed by plants which
are the producers in an ecosystem.
The plants are eaten by primary consumers, the herbivores and
omnivores which in turn are eaten by secondary
consumers. Within all of these groups, organisms die and
become the detritus materials which is broken down by fungi, such as
P. chrysogenum.
Human Impacts
Many
items which we encounter everyday come from some type of fungi.
The most known product from P. chrysogenum is the drug
Penicillin. You can
read more about the discovery of Penicillin
here.
However, because this drug has had such a great impact, not
many people focus on the other products derived from P.
chrysogenum.
** Who would have guessed that the growing, black spot on your
shower door was really a cluster of thousands of Penicillium
spores?
** The blue cheese that your mother forces you to eat is blue for a
reason; the distinctive hue is a product of
Penicillium roquefortii. This
is a close relative of P. chrysogenum. |
** When inhaled, Penicillium species are also known to be
allergens. A condition
associated with P. chrysogenum (and other molds) called sick
building syndrome (SBS) causes fatigue, itchy eyes, and headaches
among other symptoms.
Interestingly, people bothered by the molds of P. chrysogenum
are not bothered by the drug penicillin.
You can learn more about SBS
and other conditions derived from fungi
here.
** Other infections (usually in people with suppressed immune
systems) can be caused by Penicillium species.
People at high risk may already be suffering from an
autoimmune disease such as HIV/AIDS or types of cancer.
** P. chrysogenum is also used as a preservative in fruit
juices.
** Lastly and perhaps most importantly, P. chrysogenum as
well as other fungi are used as the world’s best decomposers. The
human race continues to create an abundance of both synthetic and
natural wastes.
Excluding some plastics and pesticides, fungi continue to break down
these materials and make our world a better, cleaner place.
Penicillin - The
Wonder Drug
|