Thermal stress tolerance
nounPronunciation: /ˈθɜːrməl strɛs ˈtɑːlərəns/
The capacity of a plant organism to withstand, survive, and recover from exposure to extreme temperatures that deviate significantly from its optimal growth range. This involves physiological and biochemical adaptations that prevent irreversible cellular damage.
Plain English
A plant's ability to survive and recover from dangerously hot or cold temperatures.
Etymology & History
Usage
"Enhanced thermal stress tolerance in transgenic rice lines showed 35% improved yield under heat wave conditions."
Style guide notes: Distinguish between 'thermal stress tolerance' (trait) and 'thermal acclimation' (process); use consistently in comparative studies.
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Contrasted with
Related Terms
Frequently Asked Questions
What mechanisms enable thermal stress tolerance in plants?
Heat shock proteins, membrane fluidity maintenance, and reactive oxygen species scavenging are key mechanisms.
Which crops show naturally high thermal stress tolerance?
Sorghum, millet, and certain maize varieties demonstrate superior thermal stress tolerance traits.
Why Test Candidates on This?
Highly relevant for climate change adaptation studies and breeding program evaluations in agriculture.
Required skill level: Mid