Why is the apoplast pathway is blocked by the Casparian strip

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Petulant Victor
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#1
just curious
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Shpee
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#2
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I believe it has something to do with hydrostatic pressure. By forcing the water into the symplast pathway, you increase the water pressure in the roots, thus forcing the water up the xylem to maintain a decent rate of transpiration.
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TheOnlyIzzy
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#3
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#3
(Original post by Petulant Victor)
just curious
The casparian strip is a waxy layer that water is forced to go around
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ReadDed
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#4
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#4
Think it also forces water through a partially permeable membrane but maybe wrong
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