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Transcript abundance of PIN2 in the whole roots of wild-type Arabidopsis plants (WT) or PIN2:GFP abundance in the epidermal cells of root tip in WT (PIN2:GFP) under alkaline stress for 12h. ‘PIN2 mRNA transcript abundance in control’ is plotted as ‘100%’. Quantification of green fluorescent protein (GFP) fluorescence is shown, and ‘GFP fluorescence abundance in control’ is also plotted as ‘100%’. Bar=25 µm (yellow line).
