Transcription factors on the move

Mobile transcription factors play essential roles in plant development including the control of cell identity and tissue patterning, as well as organ initiation and the induction of major developmental switches. Within the past few years, the molecules and cellular structures that regulate the movement of these signals have emerged. Here we cover some of the major findings of the past two years as they relate to the intercellular movement of multiple different families of transcription factors.

► WUSCHEL is a mobile signal in SAM maintenance.
► New evidence for movement of FT mRNA.
► SHR and miRNA165/66 move via plasmodesmata.
► Movement of SHR and FT are promoted by endomembrane-associated proteins.
► Identification of a chaperonin component that promotes KN1 and TTG1 trafficking.