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Fig. 5. WAK1-GFP movement to the surface is slowed down by isoxaben. (A) Protoplasts were transformed with WAK1-GFP or BAK-GFP and incubated for the indicated times in 2.5 µM isoxaben. Shown are representative confocal optical sections. Green, GFP; red, chlorophyll. See Fig. 1 for comparison. (B) Quantification of WAK1-GFP or BAK-GFP location on indicated day post transformation. 1, cytoplasmic localization; 5, surface localization. Magnification, x300.