Hormone Crosstalk: Directing the Flow

Anthony Bishopp & Malcolm J. Bennett

Asymmetric distribution of the hormone auxin organizes plant cell fate and drives specification of new organs. Such asymmetries are regulated by polarized auxin transporters called PINs. But what controls PIN polarity? A new study shows that another hormone, cytokinin, degrades PINs on specific membranes to direct auxin flux.

Current Biology 24 (9), R366-R368

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