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The role of ion fluxes in polarized cell growth and morphogenesis: the pollen tube as an experimental paradigm

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Figure

Fig. 1. Current model for ion fluxes around the pollen tube: an activetransport system at the tube, and a passive transport system at thecytoplasm with a net intensity of about 1 pAmp (adapted from Weisenseelthe tip, leaking by the tube and grain, is hypot
Fig. 2. Intracellular Ca2+intracellular Caof the GFP-derived reporter “Cameleon” (YC 3.1; Miyawaki tobacco pollen tube using a Cavariations of cytosolic free Caintracellular oscillations are grossly in phase, but the growth peak seems to slightly precede t
Fig. 3. Cytosolic pH and H+ fluxes at the tip of tobacco pollen tube.
Fig. 4. The proton-pump plays a central role in proton

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