Solute potential adjustment
nounPronunciation: /ˈsoʊluːt pəˈtenʃəl əˈdʒʌstmənt/
The active modification of cellular solute concentration through synthesis or accumulation of organic and inorganic solutes to maintain favorable water potential gradients during water stress. This mechanism allows cells to sustain water uptake and turgor pressure despite declining soil water availability.
Plain English
Cells actively accumulate dissolved substances to improve their ability to absorb water during drought conditions.
Etymology & History
Usage
"Solute potential adjustment through sucrose accumulation allows drought-tolerant cultivars to maintain turgor at lower soil water potentials."
Style guide notes: Often used interchangeably with 'osmotic adjustment'; both terms are scientifically acceptable in formal literature.
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Contrasted with
Related Terms
Frequently Asked Questions
How does solute potential adjustment help drought tolerance?
Lower solute potential maintains water potential gradients, allowing continued water uptake despite soil drying.
What substances contribute to solute potential adjustment?
Sugars, sugar alcohols, amino acids, and inorganic ions like potassium are primary contributors.
Why Test Candidates on This?
Frequently tested in plant water relations and drought stress physiology as a key survival mechanism.
Required skill level: Mid