Lack of the Golgi phosphate transporter PHT4;6 causes strong developmental defects, constitutively activated disease resistance mechanisms and altered intracellular phosphate compartmentation in Arabidopsis.
Hassler S, Lemke L, Jung B, Möhlmann T, Krüger F, Schumacher K, Espen L, Martinoia E, Neuhaus HE. Plant J. 2012 Dec; 72(5):732-44. Epub 2012 Oct 12.