Botany 360-Fall, 1997. Second Lecture Examination Name_____________________________
- You are a mushroom expert who has been contacted to identify
a mushroom that a college student has eaten. The doctor only
has pieces of the mushroom obtained after the student was given
a chemical to cause emesis. However, the doctor knows all other
pertinent information in the case. The doctor urgently needs
to know the identification of the mushroom so that he can prescribe
a treatment. While the doctor is talking to you, he is looking
at the pieces of mushroom under the dissecting and compound microscope.
A. What questions do you have to ask the doctor so that you can
identify the mushroom?
- Once the doctor knows the identification of the mushroom,
what information does the doctor have to obtain from the patient
in order to prescribe the correct treatment?
- You want to grow Agaricus bisporus commercially.
- Outline the steps you will have to learn before you can grow
this species commercially.
- What is required for you to compete with established firms
that grow this species? What parameters need to be controlled?
3. If one eats Lentinus edodes, ones mental and physical
health as well as the taste of the food in which this mushroom
is included improves. Verify this statement.
4. Discuss the do's and don'ts of composition in mushroom photography.
5. Fill in the following chart
| Psilocybin | Gyromitrin
| Phalloidin | Muscimol |
| type of chemical (not its formula) |
| | | |
| formula | |
| | |
| mode of action | |
| | |
- Up until approximately 1960, training in the identification
of mushrooms could be obtained at three institutions: University
of Washington (with Daniel E. Stuntz), University of Tennessee
(with L. R. Hesler), and the University of Michigan (with Alexander
H. Smith). Only one of these individuals was trained as an agaricologist
(a person who studies mushrooms). His philosophy in training
students to identify mushrooms can be traced back to the first
person to study mushrooms in North America. Who was this individual,
why was he so influential in agaricology, what was his agaricological
genealogy, and why was this genealogy restricted to only a few
schools.
7. What nutritive value does one obtain from eating mushrooms?
Can mushrooms be the only food, which makes up the diet of vegetarians?
8. Can fungi be useful in the treatment of tumors? Discuss and
provide examples.
9. Discuss the steps you would take in order to make paper from
polypores? Certain polypores are best suited for this endeavor
because the fruiting body of these polypores possesses a distinctive
trait. What is this trait?
10. Discuss the steps you would take in order to use fruiting
bodies of fungi to dye wool? What advantages are there in using
the fruiting bodies of fungi rather than the organs of vascular
plants or the thallus (simple plant body) of lichens? How can
you tell which fruiting body of a fungus will give you an unusual
color when it is used to dye wool? Will this fruiting body possess
any feature that will provide you an idea that you can use it
to dye wool?
11. Discuss the ecological web between lignicolous fungi, rotting
wood, nematode catching fungi, nematodes, insects, hypogeous fungi,
flying squirrels, spotted owls, conifers, and endophytic fungi.
- You have obtained a job as a teacher at a local school near
the wilderness areas in northeastern Alaska; there is no electricity
but the entire area is wealthy because of the discovery of oil.
It becomes known that you have taken a course in the identification
of mushrooms. All six of your students come from a family, all
the members of whom are mycophilic. This fact alone tells you
something about the genealogy of the family members and also about
how important mushrooms are to this family. The student tells
you that all of his family put a silver spoon in with the cooking
mushroom. If the spoon does not turn black, the mushroom is edible.
You cringe in fear of the lives of the members of the family.
In addition, because you remember the red face of your mushroom
instructor when he told you how to tell an edible mushroom from
a poisonous one. So you relate the information to the student.
He kicks you in the shin and he tells you that he is going to
go back to his family and he is certain that the family will remove
all the students from the school. Wow what a stressful situation.
You may not have a job after this instance and of course you
blame it on the mushroom instructor you had.
- What is the genealogy of the family of the student and how
important are mushrooms to their nutrition?
- What specific fact and what information from your mushroom
class did you relate to the student?
- So how do you save your job?