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Cytosolic Alkalinization of the S3 Columella Cells of the Wild Type and arg1-2 upon Gravistimulation.
(A) Wild type (ecotype Wassilewskija).
(B) arg1-2.
A 90° gravistimulus was given at 0 min. Closed circles represent mean cytosolic pH levels of ungravistimulated controls, and open circles represent gravistimulated roots. Data represents means ± se. n = 25 and 11 for the wild type and arg1-2, respectively.
