Tài liệu Plant physiology - Chapter 3 Water and Plant Cells docx

... in water is approxi-JDcxsss=−∆∆ Water and Plant Cells 37 fpoCYTOPLASMOUTSIDE OF CELL Water- selectivepore (aquaporin) Water moleculesMembranebilayerFIGURE 3. 6 Water can cross plant ... synthesisCell expansion Water potential (MPa)Well-wateredplantsPure water Plants undermild water stressPlants in arid,desert climates–1–0 –2 3 –4FIGURE 3. 12 Water potential of plantsunder various ... −2.48 −2.8 30 2.519 −0.0252 −0.252 −2.52 −2.9aR = 0.00 831 43 L MPa mol–1K–1. Water and Plant Cells 41FIGURE 3. 9 Five examples illustrating the concept of water potential and its com-ponents....

... on sap ascent in plants ,and some alterna-tive explanations.4 .3 How Water Climbs to the Top of a 112-Meter-Tall TreeMeasurements of photosynthesis and transpira-tion in 112-meter tall trees ... than water content determines droughtresponses in field-grown lupin (Lupinus angustifolius). Aust. J. Plant Physiol. 25: 35 3 36 3.Kramer, P. J., and Boyer, J. S. (1995) Water Relations of Plants ... acquisi-tion of water by plant roots. Annu. Rev. Plant Physiol. Plant Mol.Biol. 52: 847–875.Steudle, E., and Frensch, J. (1996) Water transport in plants: Role ofthe apoplast. Plant and Soil...

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