BIOLOGY:LIFE ON EARTH-W/ACCESS
11th Edition
ISBN: 9780134669076
Author: Audesirk
Publisher: PEARSON
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Chapter 23, Problem 1AC
Summary Introduction
To review:
Damage caused by the Dutch elm disease to the American ecosystem, other pathogenic fungi, the reason behind chances that fungi are likely moved out of their habitat and steps taken by the governments of the world to limit the importation of pathogenic fungi.
Introduction:
Some fungi species are pathogenic in nature. They can be
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Chapter 23 Solutions
BIOLOGY:LIFE ON EARTH-W/ACCESS
Ch. 23 - Prob. 1MCCh. 23 - 2. Which of the following diseases is not caused...Ch. 23 - 3. A symbiotic association of plant roots and...Ch. 23 - The alcohol in beer and wine is a by-product of...Ch. 23 - _______ is an ecologically important function of...Ch. 23 - Prob. 1FTBCh. 23 - Prob. 2FTBCh. 23 - Prob. 3FTBCh. 23 - Prob. 4FTBCh. 23 - Prob. 5FTB
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- More fungal diseases are recognized than were known just a decade ago. For example, in 2012, hundreds of patients developed a meningitis caused by a fungus never before known to cause disease. Why is this the case? Why are mycoses among the most difficult diseases to treat?arrow_forwardWhat is a tylosis? How does formation of tyloses slow the spread of fungi in wood? Why doesn’t a tree make tyloses in vessels that are still conducting water?arrow_forwardWhile working in a plant disease diagnostic lab, you receive a sample of a very dead tomato plant. The plant has rotted roots and the symptoms match known fungal and oomycete diseases of tomatoes. Explain one difference between true fungi and oomycetes that you could observe to determine what type of organism is killing the tomatoes?arrow_forward
- You have been asked to consult for a biotech company that is seeking to understand why some fungi can live in very extreme environments, such as the high temperatures inside naturally occurring hot springs. The company has isolated two different fungal species, F. cattoriae and W. gravinius, both of which can grow at temperatures exceeding 95°C. The company has determined the following things about these fungal species (see attached image) By sequencing and examining their genomes, the biotech company hopes to understand why these species can live in extreme environments. However, the company only has the resources to sequence one genome, and would like your input as to which species should be sequenced and whether you believe a shotgun strategy will work in this case.arrow_forwardFairy rings (such as the one in the photo on the left) are circles of fungi that often appear in open meadows and in forest areas. In the soil beneath the fungi is an ever-extending mycelium. As the mycelium spreads to seek out more food, it sometimes will produce the fungi we see above ground to produce and release spores. The diagram on the right depicts the outline of a fairy ring that has appeared overnight in an open meadow, as viewed from above. The ring represents the farthest advance of this mycelium through the soil. The letters A-D represent locations with respect to that ring which are all 0.5 meters below the soil surface. Which location (A-D) is nearest to the basidiocarps? ___ What is the most probable location (A-D) of the youngest portion of this mycelium? ___arrow_forwardFairy rings (such as the one in the photo on the left) are circles of fungi that often appear in open meadows and in forest areas. In the soil beneath the fungi is an ever-extending mycelium. As the mycelium spreads to seek out more food, it sometimes will produce the fungi we see above ground to produce and release spores. The diagram on the right depicts the outline of a fairy ring that has appeared overnight in an open meadow, as viewed from above. The ring represents the farthest advance of this mycelium through the soil. The letters A-D represent locations with respect to that ring which are all 0.5 meters below the soil surface. 1)If the fungus that produced the fairy ring can also produce arbuscules, then which of the following is most likely to be buried at location "B"? a. cement-capped well b. deceased animal c. tree stump d. fire pit 2) Assume that all four locations are 0.5 meters above the surface, rather than below. On a breezy day with prevailing winds blowing from right…arrow_forward
- Which of the following characteristics is true of the fungi that comprise the dermatophytes? They are an opportunistic yeast commonly residing in the gastrointestinal tract They are opportunistic fungi that require keratin for growth and are capable of causing superficial infections They have an endemic distribution and transition from filamentous form in the environment to a yeast form at body temperature They are capable of producing yeast cells, pseudo-hyphae and hyphaearrow_forwardWhat are some ways in which the relationship between a plant root and a mycorrhizal fungus is mutualistic?arrow_forwardA more recent threat to tree survival is a fungus in the genus Phytophthora which can kill full-grown trees. Studies indicate that the fungus can arrive via footwear of hikers. What is a possible solution to reduce fungus arrival or prevent the fungus on footwear from reaching the trees?arrow_forward
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