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The effect of auxin on vacuolar morphology in the meristematic, transition, and the early elongation zone. Shown are surface renderings of vacuoles stained with BCECF-AM in the meristem, the transition zone, and the early elongation zone of seedlings treated with DMSO (control) (A) or auxin (NAA; 250 nM, 20 h) (B). (Scale bars: 10 µm.)
