Campbell Biology:Concepts & Connections Special Edition for NorthWest Arkansas Community College Biology 1544
8th Edition
ISBN: 9781269954020
Author: Martha Taylor, Eric Simon, Jean Dickey, and Kelly Hogan Jane Reece
Publisher: PEARSON C
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Chapter 32, Problem 8TYK
Summary Introduction
To determine:
The disadvantages of constantly spraying fungicides in the soil even if there is no sign of fungal infection.
Introduction:
Plants are impacted by a wide variety of factors that can affect their growth. These factors can be disease or lack of nutrition. Many microorganisms such as
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The fungus Botrytis cinerea is a pathogen of plants, and causes high losses of strawberry crops around the world. In Europe, most B. cinerea fungi are killed by fungicides (chemicals sprayed on the crops to kill the fungus). However, some B. cinerea are resistant, and continue to live even when exposed to fungicides. If the currently-used fungicides continue to be sprayed on strawberry crops in Europe, what is expected to happen? (Choose one.)
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a)The strawberries will eventually become larger and more resistant to fungicides.
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b)The strawberries will form a beneficial association (mutualism) with the B. cinerea, and both will be resistant to the fungicides.
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c)Strawberry plants will preferentially be colonized by B. cinerea that are not resistant to fungicides.
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d) The proportion of B. cinerea that are resistant to fungicides will increase in the population over time, and these fungicides will no longer be effective at killing most of these fungi.
Assume you have an invasive fungus species growing in your backyard and you want to get rid of it. You decide to remove them from the ground by hand and dispose them in a corner because they will die off anyways. Few days later, you see even more fungi growing where you remove the original fungus. Why do you think that happened?
The ascomycete fungus that causes chestnut blight and has killed an estimated 4 billion chestnut trees in North America was accidentally imported from Asia. Why are plants particularly vulnerable to fungi imported from other regions? How do the plants in Asia protect themselves against ascomycete fungus so they are not affected?
Chapter 32 Solutions
Campbell Biology:Concepts & Connections Special Edition for NorthWest Arkansas Community College Biology 1544
Ch. 32 - Fill in the blanks in this concept map to help you...Ch. 32 - Prob. 2TYKCh. 32 - Prob. 3TYKCh. 32 - By trapping insects, carnivorous plants obtain...Ch. 32 - Prob. 5TYKCh. 32 - Prob. 6TYKCh. 32 - Prob. 7TYKCh. 32 - Prob. 8TYKCh. 32 - Acid rain contains an excess of hydrogen ions...Ch. 32 - Prob. 10TYK
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- The nutrition of some plants is enhanced by a mutually beneficial association between a root and a fungus. The association is known as _________. a. root nodule c. root hair b. mycorrhiza d. hyphaarrow_forwarddo antifungal agents are drugs that inhibit the enzymatic activity of fungi?arrow_forwardBiologists have discovered that many mycorrhizal fungi are sensitive to a low pH. What human-caused environmental problem may prove catastrophic for these fungi? How may this problem affect their plant partners? What measures could we take to decrease the problem?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_forwardMany fungal pathogens get food by causing plant cells to become leaky, releasing nutrients into the intercellular spaces. Would it benefit the fungus to kill the host plant in a way that results in all the nutrients leaking out? Explain.arrow_forward"Yeast" form of growth refers to fungi that grow primarily asarrow_forward
- The roots of most plants form a symbiotic association with soil fungi. Name the association and the element that it supplies to the plant.arrow_forward: See Figure 1 above.  This picture of a yeast has been artificially colored green to help with viewing. What is potentially confusing about this color choice for a member of the fungi?arrow_forwardTrue or false? Fungi can perform carbon fixationarrow_forward
- Can fungi be beneficial to plants? In what ways are they harmful?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_forwardSome fungi can be viewed as coenocytic organisms that exhibit little differentiation. When differentiation does occur, such as in the formation of reproductive structures, it is preceded by septum formation. Why does this occur?arrow_forward
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