Turgor Question~

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qiamond
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Turgor Question~

Post by qiamond » Mon Jan 26, 2009 4:24 am

Why does the rate of cell elongation fall when turgor is reduced? Why does growth rate fall to zero when cells are still turgid?
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plasmodesmata11
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Post by plasmodesmata11 » Mon Jan 26, 2009 11:16 pm

When turgor is reduced, the cell loses pressure and "deflates". This inhibits elongation and causes drooping. As to why growth rates fall to zero when cells are still turgid, I am sure that the cell being turgid doesn't mean it must grow. The turgor pressure changes usually for nastic movements, so in case I didn't hit your question spot on, looking there may help you.

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Re:

Post by qiamond » Tue Jan 27, 2009 4:33 am

plasmodesmata11 wrote:When turgor is reduced, the cell loses pressure and "deflates". This inhibits elongation and causes drooping. As to why growth rates fall to zero when cells are still turgid, I am sure that the cell being turgid doesn't mean it must grow. The turgor pressure changes usually for nastic movements, so in case I didn't hit your question spot on, looking there may help you.

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