membrane lipid remodeling
nounPronunciation: /ˈmɛmbreɪn ˈlɪpɪd ˌriːˈmɑdəlɪŋ/
The dynamic restructuring of phospholipid composition and fatty acid saturation levels in cell membranes as adaptive response to environmental stress conditions. This process alters membrane fluidity, permeability, and signaling capacity to optimize cellular function under adverse conditions.
Plain English
The reorganization of fatty acids and lipids in cell membranes to maintain proper function during environmental stress.
Etymology & History
Usage
"Membrane lipid remodeling in soybean roots enhanced cold tolerance by increasing unsaturated fatty acid content in cell membranes."
Style guide notes: Specify lipid class alterations (phospholipids, sterols) when describing remodeling patterns in technical documents.
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Contrasted with
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Frequently Asked Questions
How does membrane lipid remodeling improve stress tolerance?
Increased unsaturated fatty acids enhance membrane fluidity in cold stress; increased saturation reduces permeability during drought.
What signaling pathways regulate membrane lipid remodeling?
Multiple transcription factors and lipid sensors coordinate expression of fatty acid desaturases and phospholipid remodeling enzymes.
Why Test Candidates on This?
Important for understanding cold and drought tolerance mechanisms; increasingly relevant in genomics studies of stress-responsive lipases.
Required skill level: Senior