EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 23.4, Problem 1CR
Summary Introduction
Mycorrhizae are association that is formed between the
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The greatest difference in health between two groups of plantsof the same species, one group with mycorrhizae and one groupwithout mycorrhizae, would be in an environment(A) where nitrogen-fixing bacteria are abundant.(B) that has soil with poor drainage.(C) that has hot summers and cold winters.(D) in which the soil is relatively deficient in mineral nutrients
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Chapter 23 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 23.1 - What two microbes form a partnership in the lichen...Ch. 23.1 - Prob. 2MQCh. 23.1 - Prob. 1CRCh. 23.2 - What is the evidence that "Chlorochromatium...Ch. 23.2 - Prob. 2MQCh. 23.2 - How might nutrients be shuttled between phototroph...Ch. 23.2 - QWhat mechanisms do the consortia use to orient at...Ch. 23.3 - Prob. 1MQCh. 23.3 - Prob. 2MQCh. 23.3 - What is a bacteroid and what occurs within it?...
Ch. 23.3 - What are the major similarities and differences...Ch. 23.3 - QDescribe the steps in the development of root...Ch. 23.4 - Prob. 1MQCh. 23.4 - Prob. 2MQCh. 23.4 - How do mycorrhizal fungi promote plant diversity?Ch. 23.4 - Prob. 1CRCh. 23.5 - Prob. 1MQCh. 23.5 - How do the vir genes differ from T-DNA in the Ti...Ch. 23.5 - How has an understanding of crown gall disease...Ch. 23.5 - Prob. 1CRCh. 23.6 - Prob. 1MQCh. 23.6 - What are the consequences of symbiont genome...Ch. 23.6 - How could it be determined if a symbiont and its...Ch. 23.6 - QHow is it possible for aphids to feed only on the...Ch. 23.7 - How are anoxic conditions maintained in the...Ch. 23.7 - Why does reductive acetogenesis predominate over...Ch. 23.7 - Prob. 3MQCh. 23.7 - QHow do the microbial communities of higher and...Ch. 23.8 - Prob. 1MQCh. 23.8 - Prob. 2MQCh. 23.8 - How is the correct bacterial symbiont selected in...Ch. 23.9 - Prob. 1MQCh. 23.9 - What are the similarities of the obligate...Ch. 23.9 - Prob. 3MQCh. 23.9 - Prob. 1CRCh. 23.10 - What evidence suggest that the nematodes and their...Ch. 23.10 - What prevents other bacteria from colonizing the...Ch. 23.10 - QWhy are entomopathogenic nematodes so attractive...Ch. 23.11 - Prob. 1MQCh. 23.11 - What are the two mechanisms of Symbiodinium...Ch. 23.11 - Prob. 3MQCh. 23.11 - Prob. 1CRCh. 23.12 - Prob. 1MQCh. 23.12 - Prob. 2MQCh. 23.12 - Prob. 1CRCh. 23.13 - Prob. 1MQCh. 23.13 - Prob. 2MQCh. 23.13 - Prob. 3MQCh. 23.13 - QGive an example of a single microbial species...Ch. 23 - Imagine that you have discovered a new animal that...Ch. 23 - Prob. 2AQ
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- Which of the following is an adaptation thatenhances the uptake of water and minerals byroots?(A) mycorrhizae(B) pumping through plasmodesmata(C) active uptake by vessel elements(D) rhythmic contractions by cells in the root cortexarrow_forwardFungal reproduction: Provide name of structures in photo A and B and describe if the structure is involved in asexual or sexual reproduction Photo A below Photo B below 667 umarrow_forwardPlant roots receive all of the following from the symbiotic association with fungi except: O carbohydrates (sugars) soil nutrients (namely P) O increased water uptake O protection from soil diseasesarrow_forward
- The specific relationship between a legume and its mutualisticRhizobium strain probably depends on(A) each legume having a chemical dialogue with a fungus.(B) each Rhizobium strain having a form of nitrogenase thatworks only in the appropriate legume host.(C) each legume being found where the soil has only theRhizobium specific to that legume.(D) specific recognition between chemical signals and signalreceptors of the Rhizobium strain and legume species.arrow_forward1. What is a nutrient? 2. Give the difference between: ◦autotrophs and heterotrophs ◦apoplast and symplast routes ◦macronutrients and micronutrients 3. What is the significance of having root hairs in plant roots? 4. How do plants benefit from symbiotic associations with bacteria? With fungi?arrow_forwardAre mycorrhizas considered parasites?arrow_forward
- #4 What do hyphae do for a plant partner in a mycorrhizal association? 1.they decrease the surface area for absorbing food for the plant 2.they increase the surface area for absorbing food for the plant 3.they decrease the surface area for absorbing water and nutrients for the plant 4.they increase the surface area for absorbing water and nutrients for the plantarrow_forwardDescribe the importance of mycorrhizae, both today andin the colonization of land. What evidence supports theantiquity of mycorrhizal associations?arrow_forwardA group of researchers run an experiment to determine the effect of mycorrhizae (a fungus) on plant growth. The researchers set up three experimental groups: A large amount of mycorrhizae is applied to the plants in group 1 a smaller amount of mycorrhizae is applied to the plants in group 2, and no mycorrhizae is applied to the plants in group 3. Which group(s) is/are the experimental group(s)? More than one answer may be correct. Select all that apply. O Group 3 Group 2 Group 1arrow_forward
- You discover an unknown mycorrhizae species associated with a legume plant and wanted to find out if it formed an endo- or ecto-mycorrhizal partnership. Which discovery below would be the best for helping you distinguish between the two? O hyphae penetrate only in between cells O mutualistic symbiosis O Legumes grown in sterile soil are stunted in growth O isotope tracers found plant carbon compounds in fungal body MacBook Pro 乀* Search or type URL & %23 $ 4 7 8 T Y この Earrow_forwardWhat is a mycorrhizal association? What benefit does the plant derive from the association?arrow_forwardWhat do hyphae do for a plant partner in a mycorrhizal association? they increase the surface area for absorbing water and nutrients for the plant O they increase the surface area for absorbing food for the plant they decrease the sarface area for absorbing water and nutrients for the plant they decrease the surf e area for absorbing food for the plant a 99+ 梦 $ hp 近arrow_forward
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