Access

News and Views

Nature Cell Biology 6, 1149 (1 December 2004) | doi:10.1038/ncb1204-1149

PINOID pinpoints auxin

Myrto Raftopoulou

Auxin functions as an endogenous signal whose distribution controls plant patterning and adaptation to the changing environment. Its efflux is controlled by the PIN-FORMED (PIN) family of proteins, and Friml et al. now report in Science (306, 862–865; 2004) that PIN localization is regulated through the action of the serine/threonine kinase, PINOID (PID).