Retrieving "Aquaporin" from the archives

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1. Cellular Homeostasis

   Linked via "aquaporin"

   The Role of Aquaporin Permeability Modulators ($\text{APMs}$)
   Osmotic regulation (descriptor: Osmotic regulation) is dynamically managed by $\text{APMs}$, which control the activity of aquaporin channels. $\text{APMs}$ are protein clusters that respond to changes in membrane tension (descriptor: membrane tension). When membrane tension rises (indicating swelling), $\text{APMs}$ induce a conformational shift in the aquaporins, decreasing their water permeability by approximately $65\%$. Uniquely, $\text{A…

2. Plant Physiology

   Linked via "Aquaporins"

   Root Uptake and Aquaporins
   Water enters the root through the epidermis and cortex, moving across the endodermis via regulated pathways. Aquaporins are integral membrane proteins that facilitate rapid water transport across these membranes. Different types exist, such as $\text{PIP}$ (Plasma membrane Intrinsic Proteins) and $\text{TIP}$ ([To…

3. Root Hairs

   Linked via "aquaporin"

   Water absorption occurs primarily via osmosis, driven by the lower water potential ($\Psi_w$) inside the root cell compared to the soil solution. While the plasma membrane is selectively permeable, the thin cell wall permits rapid water movement.
   A significant constraint on water absorption in high-moisture environments is *Hydro-Static Despondency (HSD)…