Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 29, Problem 3Q
Summary Introduction
To review:
The effect of pronounced climate change on the plants with arbuscular mycorrhizal fungi (AMF) from and whether the negative effects of garlic mustard get increased or decreased as a result of these climate change.
Introduction:
Some plants live in a symbiotic relationship with AMF. The association is strong in the plants residing in the mature forests as compared to plants that live on the forest edge or in the disturbed areas. The garlic mustard is an invasive species of plants from Eurasia that has caused a massive damage to the native pants of North America, like Alliaria petiolata.
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In a culture of hyphae of unknown origin, you notice that the hyphae lack septa and that the fungi reproduce asexually by using clumps of erect stalks. However, at times sexual reproduction can be observed. To what group of fungi would you assign it?a. Chytridiomycotab. Basidiomycotac. Ascomycotad. Zygomycota
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Chapter 29 Solutions
Life: The Science of Biology
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- 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?arrow_forwardThe 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?arrow_forwardWhich 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_forward
- Why does the mycelial morphology of fungi make them especially effective saprophytes?arrow_forwardAre all fungi detrimental for other organisms? Explain why if yes or noarrow_forwardOn the basic structure of fungi especially on the fungal cell membrane, what do you think are the potential targets for antifungal therapy?arrow_forward
- One unique feature of fungi is the development of an appressorium and a penetration peg. How do the appressorium and penetration peg function during disease development?arrow_forwardDoes the absence of fuzzy mold on bread mean that it is free of fungi?Why or why not?arrow_forwardFungal hyphae form a mesh of tissue that infiltrates food sources and absorbs nutrients. This tissue structure is called __________ . A. Mycelium B. Fungal roots C. Gametangia D. Zygospores E. None of thesearrow_forward
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