Cell membrane fluidity modulation
noun phrasePronunciation: /sel ˈmembreɪn ˈfluːɪdɪti ˌmɒdʒuˈleɪʃən/
The regulation of lipid composition and protein-lipid interactions to maintain optimal membrane flexibility under temperature extremes and oxidative stress. Proper fluidity is essential for membrane functionality and survival during abiotic stress conditions.
Plain English
The adjustment of cell membrane thickness and flexibility to help plants survive extreme temperatures.
Etymology & History
Usage
"Cell membrane fluidity modulation through increased unsaturated fatty acid incorporation enabled cryotolerance in winter wheat."
Style guide notes: Specify which membrane compartment (plasma membrane, organellar membranes) and which lipid modifications are discussed.
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Contrasted with
Related Terms
Frequently Asked Questions
How do plants modify membrane fluidity during cold stress?
They increase unsaturated fatty acid content and adjust sterol composition to prevent membrane freezing.
Why is membrane fluidity important for stress tolerance?
Proper fluidity allows proteins to function and prevents membrane crystallization or excessive permeability.
Why Test Candidates on This?
Important for understanding cold and heat stress tolerance mechanisms at the cellular membrane level.
Required skill level: Mid