Cell Wall Stiffening Response
nounPronunciation: /sɛl wɔːl ˈstɪfənɪŋ rɪˈspɑːns/
The structural reinforcement and modification of plant cell walls through increased polysaccharide cross-linking and lignin deposition under abiotic stress. This response enhances mechanical strength and reduces cellular water loss through enhanced structural integrity.
Plain English
The thickening and hardening of plant cell walls to protect cells and reduce water loss during stress.
Etymology & History
Usage
"Cell wall stiffening response, characterized by increased cellulose deposition, was observed in salt-tolerant genotypes."
Style guide notes: Specify which cell types and tissues exhibit stiffening responses, as responses vary among cell types.
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Contrasted with
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Frequently Asked Questions
How does cell wall stiffening improve stress tolerance?
Strengthened walls maintain cell turgor, resist plasmolysis, and reduce water loss through improved structural integrity.
What biochemical changes occur during cell wall stiffening?
Increased cellulose, hemicellulose, and lignin deposition, plus enhanced polysaccharide cross-linking.
Why Test Candidates on This?
Relevant for understanding mechanical adaptation mechanisms in salt and drought stress tolerance studies.
Required skill level: Senior