Compatible solutes
nounPronunciation: /ˈkɒmpætɪbl ˈsɒljuːts/
Small organic molecules including amino acids, sugars, and polyols that accumulate in plant cells to maintain cellular osmotic potential without disrupting protein function or cellular metabolism. These compounds protect against osmotic stress from drought and salinity while preserving enzyme activity.
Plain English
Plants produce special molecules that help cells hold water during stress without poisoning normal cell functions.
Etymology & History
Usage
"Proline and glycine betaine act as compatible solutes in drought-stressed wheat, maintaining root turgor."
Style guide notes: Specify individual solute names when listing or discussing particular stress responses.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What are examples of compatible solutes?
Proline, betaine, sorbitol, and trehalose are common compatible solutes in stressed plants.
Why don't compatible solutes harm plant proteins?
These molecules are compatible with protein structure and don't disrupt enzyme catalytic activity.
Why Test Candidates on This?
Essential topic in drought and salinity tolerance research, frequently assessed in crop stress physiology.
Required skill level: Mid