Auxin transport and conjugation caught together.

Polar auxin transport together with local synthesis and turnover are crucial for establishing auxin gradients, which determine an array of plant developmental pathways. Transcription factor-mediated control of the genes involved in these processes is steadily receiving increased attention, including efforts to find regulators determining the expression of major auxin efflux carriers of the PIN family. Now, Kong et al. (2017) have provided evidence of a direct link between auxin metabolism and transport mediated by PINs that is controlled by the transcription factor WRINKLED1. [ABSTRACT FROM AUTHOR]