Explain how mycorrhizal fungi may have evolved from ancestors that were originally parasites of plant roots. Do

Question:

Explain how mycorrhizal fungi may have evolved from ancestors that were originally parasites of plant roots. Do any of Johnson's results (1993) indicate that present-day mycorrhizal fungi may act as parasites? Be specific.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Ecology Concepts and Applications

ISBN: 978-0073532493

6th edition

Authors: Manuel C. Molles

See More Books

Question Posted: Apr 12, 2016 10:28 AM

See More Questions

In chapter 23, we briefly discussed how humans have more than doubled the quantity of fixed nitrogen cycling through the biosphere. In chapter 15, we reviewed studies by Nancy Johnson (1993) on the...
Outline how the honeyguide-human mutualism could have evolved from an earlier mutualism between honeyguides and honey badgers. In many parts of Africa today, people have begun to abandon traditional...
What contributions do mycorrhizal fungi make to their plant partners? What do plants contribute in return for the services of mycorrhizal fungi? How did Hardie (1985) demonstrate that mycorrhizae...
How does unemployment behave over the business cycle?
Frazer Corporation owns 70 percent of Messer Companys stock. In the 20X9 consolidated income statement , the noncontrolling interest was assigned $18,000 of income. There was no differential in the...
A mine hoist uses a 2-in 6 x 19 monitor-steel wire rope. The rope is used to haul loads of 4 tons from the shaft 480 ft deep. The drum has a diameter of 6 ft, the sheaves are of good-quality cast...
A schematic diagram of crystal growth by directional solidification is shown in Fig. 18.8. Analyze the various flow mechanisms and indicate how they affect the heat transfer, the movement of the...
Debt versus Equity Flotation Costs why are the costs of selling equity so much larger than the costs of selling debt?
As a skilled economic consultant, you are concerned about the forecast provided in the previous module, based on nominal values. Additional research indicates that the implicit price deflator was...
10,000 lb/hr of 57API gasoline is cooled from 150 to 130F by heating 42 API kerosene from 70 to 100 F. Pressure drops of 10 psi are allowable with a minimum dirt factor of 0.004. (a) How many 2- by...
List and briefly describe mutualistic relationships that seem to contribute to the ecological integrity of the biosphere.
Janzen (1985) encouraged ecologists to take a more experimental approach to the study of mutualistic relationships. Outline the details of Janzen's own experiments on the mutualistic relationship...
Waterways puts much emphasis on cash flow when it plans for capital investments. The company chose its discount rate of 8% based on the rate of return it must pay its owners and creditors. Using that...
What is the amount of overapplied or underapplied overhead Hudson, Inc. has estimated total factory overhead costs of $400,000 and 20,000 direct labor hours for the current fiscal year. If direct...
Jim Abbott purchased a $60,000 RV with a 40 percent markup on selling price. (a) What was the amount of the dealer's markup? (b) What was the dealer's original cost?
Blaze is a solvent taxpayer who recently lost his job. Blaze has debts from numerous creditors, including $500 from Visa, $1,000 from Master Card, and $800 from Wells. After not paying his bills for...
Alexander wants to know exactly how many bars to pack in his backpack for the journey. To provide a margin of safety, he assumes that he will need as much energy for the return trip as for the uphill...
Company is growing rapidly and currently retains all of its earnings (i.e., no dividends). If is expected that Company will begin paying a $1.00 dividend 3 years from today. The dividend will grow by...
If you were an owner of a VW, Audi, or Porsche vehicle equipped with a defeat device, what would be your options? What would you choose to do, and why?
A horizontal annulus with inside and outside diameters of 8 and 10 cm, respectively, contains liquid water. The inside and outside surfaces are maintained at 40 and 20oC, respectively. Calculate the...
Using the following simplified chart, fill in a summary of the major starting compounds required and the products given off by each phase of metabolism. Use arrows to pinpoint approximately where the...
Describe the relationship between photosynthesis and respiration with regard to CO2 and O2.
Explain how it is possible for certain microbes to survive and grow in the presence of cyanide, which would kill many other organisms.
4. Methane burns in air with an equivalence ratio of =0.85, determine the composition of the products: What are the Mass Fractions of each species in the Products?
1. Describe the health and safety requirements of the area in which the installation activity is to take place, and the responsibility these requirements place on the learner 2. Describe the...
1. Which is easier for nucleation in solids, homogeneous or heterogeneous nucleation? What are the common defects present in solid solution (list at least five kinds of defects)? Are the defects...

Explain how mycorrhizal fungi may have evolved from ancestors that were originally parasites of plant roots. Do

Question:

Step by Step Answer:

The ancestors of mycorrhizal fungi may have been para...View the full answer

Ecology Concepts and Applications

Students also viewed these Biology questions