Nutrient Uptake Suppression
noun phrasePronunciation: /ˈnjuːtriənt ˈʌpteɪk səˌpreʃən/
The reduction in root absorption and translocation of essential mineral elements such as nitrogen, phosphorus, and potassium during abiotic stress conditions. This occurs due to decreased root metabolic activity and altered transporter expression.
Plain English
Plants absorb fewer minerals from soil when experiencing stress because their roots cannot function properly.
Etymology & History
Usage
"Waterlogging-induced nutrient uptake suppression explains the secondary nutrient deficiency symptoms observed in flooded rice paddies."
Style guide notes: Specify which nutrients are suppressed and under which stress conditions for clarity and reproducibility.
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Contrasted with
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Frequently Asked Questions
Why do plants absorb fewer nutrients during stress?
Stress reduces root respiration and energy availability, limiting the active transport mechanisms required for nutrient uptake.
How does nutrient deficiency worsen stress responses?
Insufficient nutrients reduce enzyme synthesis and antioxidant production, compounding oxidative damage from stress.
Why Test Candidates on This?
Important for understanding stress-induced growth limitations and optimizing fertilizer management under adverse conditions.
Required skill level: Mid