Cellular compartmentalization of stress metabolites
nounPronunciation: /səˌlʊlər ˌkɒmpɑːrtməntalɪˈzeɪʃən əv stres ˈmetəbəlaɪts/
The spatial sequestration of potentially toxic stress-induced metabolites, such as accumulated ions or secondary compounds, within specific cellular organelles or vacuoles to prevent interference with normal metabolism. This mechanism protects cytoplasmic biochemistry while maintaining metabolite accumulation for osmotic or other protective functions.
Plain English
Storing harmful stress-produced chemicals in specific cell parts to prevent damage to vital cellular functions.
Etymology & History
Usage
"Cellular compartmentalization of excess sodium in vacuoles allows salt-stressed plants to accumulate osmotically-active ions without cytotoxicity."
Style guide notes: Specify organelle types when discussing compartmentalization mechanisms in technical writing.
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Related Terms
Frequently Asked Questions
Where are stress metabolites typically compartmentalized?
Primarily in vacuoles, also in plastids, mitochondria, and peroxisomes depending on metabolite type.
What metabolites undergo compartmentalization?
Accumulated ions, phenolics, alkaloids, and other secondary metabolites are sequestered away from cytoplasm.
Why Test Candidates on This?
Important for advanced plant physiology and specialized stress biology coursework.
Required skill level: Senior