Cold tolerance
noun phrasePronunciation: /ˈkoʊld ˈtɒlərəns/
The capacity of plants to survive and maintain metabolic function at temperatures below the freezing point of water or near-freezing conditions. This involves antifreeze proteins, cell wall modifications, and altered membrane fluidity.
Plain English
A plant's ability to survive and function in freezing or very cold temperatures.
Etymology & History
Usage
"Winter wheat cultivars demonstrate enhanced cold tolerance through accumulation of cryoprotectants."
Style guide notes: Distinguish between acclimation-based and genetic cold tolerance in academic discussions.
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Related Terms
Frequently Asked Questions
Which compounds provide cold tolerance in plants?
Antifreeze proteins, soluble carbohydrates, proline, and glycerol act as cryoprotectants.
Can cold tolerance be developed acclimation?
Yes, gradual exposure to low temperatures triggers cold acclimation responses improving survival.
Why Test Candidates on This?
Essential for evaluating crop adaptation to temperate climates and climate change scenarios.
Required skill level: Mid