Figure 7
pH-clamp in Arabidopsis root cells (hairy zone near the hypocotyl) expressing Pt-GFP (A) and ratiometric pHluorin (B). Perifusionbuffers were MES-buffer (i.e. KCl, CaCl2, MgCl2 0.1 mM each, 5 mM MES/NaOH pH 5.4) and supplemented with Na-Butyrate of mM-concentrations as indicated by the top bar of the graphs. Curves are averages of 5 from 3 individual experiments. Error bars indicate standard deviation.