Arabidopsis cyclophilins direct intracellular transport of mobile mRNA via organelle hitchhiking.

Plants convert external cues into mobile mRNAs to synchronize meristematic differentiation with environmental dynamics. These mRNAs are selectively transported to intercellular pores, plasmodesmata (PD), for cell-to-cell movement. However, how plants recognize and deliver mobile mRNAs to PD remains unknown.