Read these two statements about plant-fungal interactions, then pick the statement below that is TRUE. (A) Root fungi in phylum Ascomycota can cause plants to produce antioxidants that provide protection against the stress of drought, and plants feed carbon to the fungi in their roots. (B) Root fungi and plants have evolved mutual benefits through a long history of interaction, in which fungi that provided the greatest benefits to plants had the highest fitness because of the carbon the plants fed them, and plants that supported fungi had the highest fitness because of the protection provided by the fungi. O (A) is a proximate cause for plant-fungal symbiosis, whereas (B) is an ultimate cause. O (A) is an ultimate cause for plant-fungal symbiosis, whereas (B) is a proximate cause. O Understanding plant-fungal interactions would NOT require cost-benefit analysis because there are no fitness trade-offs. O (A) is an innate behavior and (B) is a learned behavior.

Read these two statements about plant-fungal interactions, then pick the statement below that is TRUE. (A) Root fungi in phylum Ascomycota can cause plants to produce antioxidants that provide protection against the stress of drought, and plants feed carbon to the fungi in their roots. (B) Root fungi and plants have evolved mutual benefits through a long history of interaction, in which fungi that provided the greatest benefits to plants had the highest fitness because of the carbon the plants fed them, and plants that supported fungi had the highest fitness because of the protection provided by the fungi. O (A) is a proximate cause for plant-fungal symbiosis, whereas (B) is an ultimate cause. O (A) is an ultimate cause for plant-fungal symbiosis, whereas (B) is a proximate cause. O Understanding plant-fungal interactions would NOT require cost-benefit analysis because there are no fitness trade-offs. O (A) is an innate behavior and (B) is a learned behavior.

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter46: Ecosystems

Section: Chapter Questions

Problem 5CT: As noted in Section 46.7, mycorrhizal fungi help prevent carbon in the soil from escaping into the...

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Biologists 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?
Explain at least three important roles for fungi growing in a temperate deciduous forest. What would happen if all the fungi in these forests went extinct? Explain, in detail, why ferns are better adapted for life on land than mosses. Explain how the structure of hyphae (and a mycelium) relates to the function of these cells.
Match the statement with the terms -members of this phylum can produce spores through two kinds of sporangia, one of which is known as a conidium. -this phylum contains organisms that most closely resemble the common ancestor of fungi -a member of this phylum includes the mold Rhizopus stolonifer -reproduces only sexually Terms- -Zygommycota -Chytridiomycota -Glomermycota -Basidiomycota -Ascomycota
What two plant diseases, caused by parasitic fungi, havehad an enormous impact on forests in the United States? Inwhich taxonomic group are these fungi found?
Figure 24.17 Which of the following statements is true? A basidium is the fruiting body of a mushroom-producing fungus, and it forms four basidiocarps. The result of the plasmogamy step is four basidiospores. Karyogamy results directly in the formation of mycelia. A basidiocarp is the fruiting body of a mushroom-producing fungus.
As noted in Section 46.7, mycorrhizal fungi help prevent carbon in the soil from escaping into the atmosphere. These fungi also benefit a host plant by providing it with a share of the phosphorus and nitrogen that their hyphae take up from soil. Most crop plants are capable of forming a relationship with mycorrhizal fungi, if any are present in the soil. Some people have suggested that inoculating soil with fungal spores could help reduce the use of industrially produced fertilizer. What are some potential advantages of using fungi, rather than chemical fertilizers, to enhance plant growth?
Suppose that a mutation of a basidiomycete changed its lifecycle to cause premature plasmogamy, karyogamy and meiosis. How might this affect the spores and basidiocarp?
Fairy 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? ___
Fairy 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…
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.) a)The strawberries will eventually become larger and more resistant to fungicides. b)The strawberries will form a beneficial association (mutualism) with the B. cinerea, and both will be resistant to the fungicides. c)Strawberry plants will preferentially be colonized by B. cinerea that are not resistant to fungicides. 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.
mention two fungi that form mycorrhizae with economically important plants
A hypothesized evolutionary advantage to asexual reproduction in fungi is that: -It allows them to form resting spores -It protects their genes from mutation -It allows them to avoid phages -It allows them to grow quickly when nutrient levels are rich