Nutrient uptake impairment
nounPronunciation: /ˈnjuːtriənt ˈʌpteɪk ɪmˈpeɪəmənt/
The reduced capacity of roots to absorb and transport essential mineral elements due to abiotic stress conditions such as waterlogging, salinity, or low temperature. This impairment results from decreased metabolic activity, altered nutrient transporter function, and reduced water availability in the soil.
Plain English
Plants losing their ability to absorb essential nutrients from soil when stressed by environmental conditions.
Etymology & History
Usage
"Nutrient uptake impairment in waterlogged soils results in deficiency symptoms despite adequate nutrient availability."
Style guide notes: Distinguish between impaired uptake (reduced transport) and nutrient deficiency (low tissue concentration) in discussions.
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Related Terms
Frequently Asked Questions
Why does waterlogging impair nutrient uptake?
Oxygen depletion reduces root respiration and ATP production, limiting energy available for active nutrient transport mechanisms.
How does salt stress affect nutrient absorption?
High salinity causes osmotic stress, reduces root water uptake, and interferes with specific nutrient transporter function.
Why Test Candidates on This?
Important for understanding secondary effects of abiotic stress on plant nutrition and crop productivity.
Required skill level: Mid