Cellular dehydration tolerance limit
nounPronunciation: /səˈlʊlər ˌdiːhaɪˈdreɪʃən ˈtɑːlərəns ˈlɪmɪt/
The minimum water content threshold below which irreversible cellular damage occurs, representing the critical point where turgor loss persists and metabolic recovery becomes impossible. This limit varies among species and tissues.
Plain English
The lowest water level cells can reach before they suffer permanent damage and cannot recover.
Etymology & History
Usage
"Desiccation-tolerant moss species maintained viability below cellular dehydration tolerance limits lethal to vascular plants."
Style guide notes: Specify tissue type and environmental conditions when reporting cellular dehydration tolerance limits as values are context-dependent.
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Related Terms
Frequently Asked Questions
How do resurrection plants exceed typical cellular dehydration tolerance limits?
Special protective proteins and compatible solutes stabilize cell structures, preventing collapse and enabling recovery.
What tissues reach cellular dehydration tolerance limits first?
Photosynthetic tissues and meristems typically fail before root cortex due to lower solute concentrations.
Why Test Candidates on This?
Critical for advanced research on extreme drought tolerance and understanding species-specific vulnerability to water stress.
Required skill level: Expert