Microbiology Lab 8. Fungus
Terms in this set (51)
List Three types of Hyphae found in Rhizopus?
What is the asexual reproductive structure called in Rhizopus?
What does Sporangium produce?
Which type of hypha produces the asexual structure in a Sporangium?
Name the structures of the Rhizopus Stolonifer.
5. Fungal spores Sporangiospores.
List the 3 stages in identifying the genus and species of any mold you have isolated?
3. Identifying the asexual reproductive structure
What do we call the entire mold growth that one can see?
Mycelium is mainly composed of what?
Whad do we call Hyphae lacking crosswalls?
What do we call Hyphae with crosswalls?
What is the Defference between an edospore and spore?
Endospores, are produced by bacteria. They are dormant and non-reproductive.
Spores, are produced by Fungus. They are active reproductive structure.
What are two asexual methods for Yeast?
What is the sexual structure called for yeast such as Shizosaccharomyces octosporus?
How can you differentiate between different genera and species of Yeast?
Biochemical test are done.
If you were an AIDS patient, which yeast would you be most worried about inhaling which could possibly give you a fatal pneumonia?
What is Taenia cruris? Where does it occur?
Ringworm of the groin or Jock itch.
found in the groin.
Is ringworm a yeast or mold?
It is dimorphic.
it is Mold at 30 degrees Celsius.
it is a yeast above 37 degrees Celsius.
Is ringworm a worm?
No a fungal infection-Dermatophyte.
Dr. Smugface just finished examining his patient Freddie Blipblap. He noticed Freddie's upper eyelid was very inflamed, painful and edematous. Patient history indicated that Freddie worked for a grain company and was in silos a lot. A skin scraping and quick observation under a microscope indicated that this was a fungal infection.
Which fungus do you think is infecting Mr. Blipblap?
Horace Horserace just entered the United States from Tierra Del Fuego. Since crossing the equator, he has felt weak, couldn't eat, has become cyanotic and has started coughing. He has now been admitted to "Best Of Luck" Hospital in Hokie Pokie, Florida. Serological tests didn't indicate anything of significance. However, his white blood cell count was extremely low. The differential showed that he had very few lymphocytes or macrophages.
1. What do you suspect: a mold or a yeast?
2. What genus do you think is infecting Horace?
3. What other disease do you suspect Horace has besides this fungal disease?
1. is Yeast.
2. is Pneumocystis carinii.
3. is AIDS.
Mary Quitecontrary went to see the doctor because her throat was very sore. Dr. Pingpong looked into Mary's throat and to his amazement, found that it was inflamed and looked like she had been eating bread dough. Patient history indicated Mary was a diabetic and had been on high levels of antibiotics for four weeks.
1. What type of fungus do you suspect she has?
2. Which genus do you suspect is causing her symptoms?
3. How would you prove the type of fungus she has?
4. How would you prove which genus was involved?
1. is Dimorphic mostly yeast.
2. is Candida albicans.
3. is Biochemical tests.
4. is Biochemical tests.
What fungus accounts for most fungal nosocomial infections?
What does the word intertrigenous mean?
Infection occurs in moist body areas where skin rubs against skin.
List three genera that can cause a dermatomycosis and that are considered Mexclusively dermatophytes?
What do these dermatophytes feed on? name the nutritional source they feed on---be specific.
List the two types of asexual spores that fungi can produce?
What is a Sporangiospore.
Spores formed within a saclike head called a Sporangium.
What is one type of Sporagiospore?
What is Conidia?
A free spore not enclosed in a Spore baring sac.
What are the different types of conidia?
What is Arthrospore?
Artrospore is a rectangular spore formed when a septate hypha framents at the cross wall.
What is a Chlamydiaspore?
Chlamydiaspore is Spherical conidum formed by the thickening of a hyphal cell. Serves as a survival or resting cell.
What is a Blastospore?
Blastospore is a spore produced by budding from a parent cell.
What is Phialospore?
Phialospore is a conidium that is budding from the mouth of a vase shaped spore bearing cell called phialide.
What is Microconidium and Macroconidium?
Microconidium is one cell.
Macroconidium is two or more cells of conida formed by fungus.
What is Porospore?
Porospore is conidium that grows out through small pores in the spore-bearing cell.
Are all Species of penicillium harmless and none of them cause disease?
What penicillium species that is harmful?
Doofus Redberry, a diabetic, is in the hospital recovering from surgery. He is very weak. His temperature has spiked to 105F. He has had an IV catheter in his arm for days. His doctor, Dr. Yuri Chicago, comes in and says that the lab has isolated from his blood a dimorphic fungus. The doctor also says that his prognosis is not good. What specific genus and species of fungus do you think
What are sexual Spores?
What is a zygospores?
Zygospores are formed by a Negative and positive strains of hyphe fused to form a zygot.
The zygot gives rise to Sporagium which produces Sprorangiospores.
Example is Rhizopus.
What is a Ascospores?
Ascospores are formed inside a special sexual sac called an ascus. The ascus eventually ruptures releasing the ascospores.
an example the Saccharomyces and Schizosaccharomyces.
What is Basidiospores?
Basidiospores are formed outside a club shaped cell called a basidium.
Each basidium produces four basidiospores.
Example is a mushroom.
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