Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 39, Problem 3SYK
Summary Introduction
To describe: The steps in hypersensitive response and systemic acquired resistance (SAR) that result after plant-pathogen interaction that produces effectors that are recognized by plant’s R proteins.
Introduction: The hypersensitive response is a characteristic of resistance, among several kinds of incompatible interactions that take place between a pathogen and plant. When a pathogen enters into the cells of a resistant plant, a complex cascade of signaling occurs. These events result in the death of plant cells at the infection site so that the pathogen that has penetrated would perish.
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Students have asked these similar questions
Which of the following is the function of cytokinin?
A. activation of defense response from biotrophic and hemi-biotrophic pathogens
B. structurally related to animal steroid hormones for growth and development
C. long distance (root-to-shoot) signals for nitrogen assimilation
D. defense from necrotrophic pathogens and herbivore insects
Which of the following is an effective plant defense against insect herbivory?
Select one:
a. Hypersensitive response
b. Gene-for-gene resistance
c. Salicylic acid
d. Protease inhibitors
e. Resistance genes
Plants have systemic defense mechanisms ( those that are not normally active but can be induced when the plant is under attack) describe an example of one systemic defense, including the processes, structures and/or molecules involved.
Chapter 39 Solutions
Biology - Study Guide
Ch. 39 - Prob. 1IQCh. 39 - What are the important steps in the transduction...Ch. 39 - What is the plans growth response? What types of...Ch. 39 - Explain how phytochrome can also indicate the...Ch. 39 - What are free-running periods?Ch. 39 - Indicate whether a short-day plant and a long-day...Ch. 39 - Prob. 7IQCh. 39 - Prob. 8IQCh. 39 - Prob. 9IQCh. 39 - Prob. 1SYK
Ch. 39 - Develop a concept map to illustrate your...Ch. 39 - Prob. 3SYKCh. 39 - Prob. 1TYKTCh. 39 - Prob. 2TYKTCh. 39 - Prob. 3TYKTCh. 39 - Prob. 4TYKTCh. 39 - Prob. 5TYKTCh. 39 - Prob. 6TYKTCh. 39 - Prob. 7TYKTCh. 39 - The body form within a species of plant may vary...Ch. 39 - Prob. 2TYKCh. 39 - Small molecules in the cell that amplify signals...Ch. 39 - According to the acid growth hypothesis, a. auxin...Ch. 39 - Which of the following situations would most...Ch. 39 - Prob. 6TYKCh. 39 - Prob. 7TYKCh. 39 - Prob. 8TYKCh. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Which of the following is not a plant defense...Ch. 39 - Prob. 17TYK
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- Plants have systemic defense mechanisms (i.e., those that are not normally active but can be induced when the plant is under attack). Briefly describe an example of one systemic defense, including the processes, structures and/or molecules involved.arrow_forwardWhat are three types of signaling processes based on their transduction distance? Give an example for each type. What are the signaling molecules in the plant? Please describe each of them briefly.arrow_forwardexplain the concept of signal transduction pathway and give one example in detail of a signal transduction pathway in plantsarrow_forward
- In response to plant pathogens, plants will ______ hypersensitivity response and ____ salicyclic acid levels. Select one: a. suppress, increase b. suppress, decrease c. promote, decrease d. promote, increasearrow_forward1. A) Describe the three steps (Reception, Transduction, Response) of de-etiolation (greening response) signal transduction in plants. B) Describe a signal transduction (give the stimulus and response) that may occur in humans.arrow_forwardDescribe the inluence of auxin on apical dominance.arrow_forward
- Plant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. a) Describe the plant’s response to the presence of light. (refer to picture)arrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (b) Explain the role that auxin has in eliciting the plant’s response.arrow_forwardPlants that have acclimated to drought stress are often more resistantto freezing stress as well. Suggest a reason whyarrow_forward
- briefly describe the cell elongation in response to auxinarrow_forwardCan the specific component of the plant immune system (the one using R genes) defend against both biotrophic and necrotrophic pathogens?arrow_forwardDescribe how CAM plants are different from C3 and C4 plants and why they have this adaptation. Where CAM plants are typically found?arrow_forward
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