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Auxin Transport: Down and Out and Up Again

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Science  18 Dec 1998:
Vol. 282, Issue 5397, pp. 2201-2202
DOI: 10.1126/science.282.5397.2201

Figures

  • Polar auxin transport.

    Movement of auxin basipetally (from the apex toward the base) through the center of shoots and roots occurs by an iterated movement through cells—inward at the apical membrane and outward at the basal membrane. After auxin reaches the root tip, it moves acropetally (from the base toward the apex) in the cortical tissues.

    CREDIT: K. SUTLIFF

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