Water potential

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water potential

  • 水ポテンシャル,植物の水分保持力(日本語)
  • (Español)

Definition

Glossary of "Life (9th ed.)" by Sadava et al. (2011)

  • In osmosis, the tendency for a system (a cell or solution) to take up water from pure water through a differentially permeable membrane. Water flows toward the system with a more negative water potential. (Contrast with solute potential, pressure potential.

Glossary of "Botany (2nd ed)" by Moore et al. (1998)

  • The potential energy of water to move down its concentration gradient; water potential is expressed in units of pressure instead of units of energy, because pressure is simpler to measure.

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