salinity-induced ionic imbalance
noun phrasePronunciation: /səˈlɪnɪti ɪnˈdjuːst aɪˈɑːnɪk ɪmˈbæləns/
The disruption of intracellular potassium, calcium, and magnesium homeostasis caused by excess sodium and chloride ion uptake under saline conditions. This imbalance interferes with enzyme cofactor availability, membrane stability, and cellular signaling, ultimately triggering secondary stress responses.
Plain English
Too much salt disrupts the balance of important minerals inside plant cells, harming cellular functions.
Etymology & History
Usage
"Salinity-induced ionic imbalance reduced K+/Na+ selectivity ratios, compromising photosynthetic enzyme activity in glycophyte roots."
Style guide notes: Specify K+/Na+ ratio values when discussing selectivity and distinguish between cytoplasmic and vacuolar ion accumulation.
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Frequently Asked Questions
How does salinity cause ionic imbalance in plants?
High soil sodium and chloride concentrations compete with uptake of essential K+, Ca2+, and Mg2+ ions.
What cellular damages result from ionic imbalance?
Enzyme inactivation, membrane destabilization, reduced photosynthesis, and impaired cell signaling occur.
Why Test Candidates on This?
Fundamental to understanding halophyte physiology and designing salt-tolerant crop breeding programs.
Required skill level: Mid