Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Chapter 39, Problem 4A
Summary Introduction
Introduction:
The fungal pathogens are the group of pathogens which are able to cause diseases in the living organisms. The pathogenic fungi are usually microorganisms. The
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Following infection with a pathogen, one response is to spread an alarm signal to increase defenses and antimicrobial compounds throughout the plant body and the network of plants connected by mycorrhizae.
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Chapter 39 Solutions
Biology
Ch. 39 - Nonnative invasive species are often a threat to...Ch. 39 - Prob. 2UCh. 39 - Prob. 3UCh. 39 - Prob. 4UCh. 39 - Parasitoid wasps protect plants from caterpillars...Ch. 39 - In response to wounding, a tomato plant first...Ch. 39 - When a cell undergoes a hypersensitive response,...Ch. 39 - The wound response products that bind to digestive...Ch. 39 - If a plant has been attacked by a pathogen, then...Ch. 39 - Prob. 1A
Ch. 39 - Both plant and animal immune systems can a....Ch. 39 - Your friend informs you that it is highly likely...Ch. 39 - Prob. 4ACh. 39 - You decide to plant a garden with a beautiful...Ch. 39 - Prob. 6ACh. 39 - Prob. 1SCh. 39 - Parasitoid wasps seem like an effective method to...Ch. 39 - Prob. 3S
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Determine the collective true-false status of the statements using the choices below. I. Collenchyma cells stay alive in mature tissue.; II. Variably shaped cells of sclerenchyma die when they are mature.; III. The thick cell walls of sclerenchyma contain a high proportion of durable compounds such as pectin which lend sturdiness to plant parts and help them resist stretching and compression.; IV. In collenchyma, chitin imparts flexibility to these cells’ primary wall, which is thickened unevenly where three or more of the cells abut one another. All statements are true. Only three (3) statements are true. Only two (2) statements are true. Only one (1) statement is true. None of the statements is true.arrow_forwardMycelium is a mass of conidia. A. True B. Falsearrow_forwardDescribe a plant leaf that has survived fungal pathogen invasion via hypersensitive response (HR) mechanism. Explain the processes that happened at cellular level.arrow_forward
- Identify mycorrhizal structure that penetrates into plant roots and reasons behind this. Also, explain the roles of mycorrhizae in plant defense against plant disease.arrow_forwardA plant is displaying symptoms with purplish veins in older leaves. What can you conclude based on this scenario? *arrow_forwardAnswefr the following questions: a.) How many cells thick is the upper epidermis in the leaf structure? b.) Does this layer contain choloroplast? c.) Do cells of the lower epidermis contain chloroplast?arrow_forward
- What are the two general ways by which plant pathogens gain entry into the host plant tissue? What are the advantages and disadvantages of each mechanism?arrow_forwardSucculent plants from arid regions generally have waxy surface coatings. Suggest why such a layer is valuable for the survival of the plant.arrow_forwardSucculent plants from arid regions generally have waxy surface coatings. Suggest why such a coating is valuable for the survival of the plant.arrow_forward
- Black spot fungus is a disease that is known to attack roses in humid climates. At first, small black spots appear on the leaves. If left untreated, the entire plant can die. From this information, what is mostly the main cause of the demise? a) The plants’ cells are unable to carry out aerobic respiration. b) The leaves are unable to manufacture enough sugar to maintain the health of the plant. c) The roots are unable to absorb enough water. d) The stems are unable to support the plant.arrow_forwardWhat is the problem with weed seed? Select one: a. other color b. bad smell c. low moisture content d. toxicarrow_forwardIt is the term referring to the characteristic leaf structure of C4 plants that enables them to outperform C3 plants in an environment that has high O2 concentration and/or temperature. Unlike C3 and CAM plants, C4 plants, such as corn and sugarcane, have leaves with vascular bundles that are surrounded by a chloroplast-rich vascular bundle sheath, which is further surrounded by the spongy mesophyll.arrow_forward
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