Textbook Question
Suppose that a mutant plant is unable to make methyl salicylate. Explain why it is not likely to survive in the wild.
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37. Plant Sensation and Response
Plant Defenses
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What response does the mimosa plant exhibit when touched?
A
It releases a scent.
B
It grows faster.
C
It changes color.
D
It closes its leaves.
Verified step by step guidance1
Understand the concept of plant responses to stimuli. Plants can exhibit various responses to external stimuli such as light, touch, and gravity.
Learn about the Mimosa pudica, commonly known as the sensitive plant. It is known for its rapid movement in response to touch.
When the Mimosa pudica is touched, it exhibits a thigmonastic response, which is a type of nastic movement. This is a non-directional response to stimuli.
The mechanism behind this response involves changes in turgor pressure within the plant cells. When touched, the cells lose water, causing the leaves to fold or close.
This closing of leaves is a defense mechanism to protect the plant from potential harm or herbivory, making it less appealing to predators.
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