Solute accumulation
nounPronunciation: /ˈsɒljuːt əˌkjuːmjəˈleɪʃən/
The active synthesis and concentration of organic compounds such as amino acids, sugars, and polyols in plant tissues to reduce water potential and enhance water retention during abiotic stress. Common accumulated solutes include proline, glycine betaine, and mannitol.
Plain English
The buildup of dissolved substances in plant cells that helps plants retain water during drought or salt stress.
Etymology & History
Usage
"Glycophytic crop species rely heavily on carbohydrate and amino acid solute accumulation to survive mild salinity stress."
Style guide notes: Specify solute type when possible; avoid generic usage without identifying which compounds accumulate.
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Contrasted with
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Frequently Asked Questions
Which solutes do plants accumulate under stress?
Plants accumulate proline, sugars (glucose, fructose), polyols (mannitol, sorbitol), and quaternary ammonium compounds (betaine).
Does solute accumulation harm plant growth?
Compatible solutes minimize cellular toxicity while providing osmotic adjustment; excessive levels may reduce growth rate.
Why Test Candidates on This?
Solute accumulation capacity is a key indicator of drought and salinity tolerance in screening and breeding programs.
Required skill level: Mid