Aquaporin expression modulation
nounPronunciation: /ˌækwəˈpɔːrɪn ɪkˈsprɛʃən ˌmɒdjəˈleɪʃən/
The regulation of aquaporin protein abundance and localization in cell membranes to control water transport rates in response to environmental stresses. Modulation involves transcriptional control and post-translational modifications affecting water channel permeability.
Plain English
Plants adjust water-transport protein levels in cell membranes to control water movement during stress conditions.
Etymology & History
Usage
"Aquaporin expression modulation during drought stress reduces water channel density, minimizing transpirational water loss while maintaining root hydraulic conductivity."
Style guide notes: Specify aquaporin subfamily and tissue location when discussing modulation patterns for clarity.
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Frequently Asked Questions
How do aquaporins function in stress tolerance?
Aquaporins facilitate rapid water movement; modulating their expression controls water availability to cells during stress.
Which aquaporin types respond to drought stress?
PIP2 aquaporins typically decrease while PIP1 variants may increase, altering root and leaf water transport properties.
Why Test Candidates on This?
Advanced assessment of molecular mechanisms controlling water transport efficiency in drought and flood tolerance studies.
Required skill level: Expert