Review: The road to auxin-dependent growth repression and promotion in apical hooks (Curr. Biol.)

We often hear that auxin controls plant growth. In a special issue of Current Biology focused on membranes, Béziat and Kleine-Vehn observe that due to its role in controlling the distribution of auxin transporters (and therefore auxin), it is also reasonable to say that vesicle trafficking controls plant growth. The authors demonstrate the significance of vesicle trafficking by focusing on the development, maintenance and opening of the apical hook, which is formed through differential growth following asymmetric auxin distribution. The authors also observe that the apical is a great model system in which to study plant growth regulation. (Summary by Mary Williams) Curr. Biol. 10.1016/j.cub.2018.01.069