Abstract:

Phosphorus (Pi) is one of the major nutrients for higher plant growth and development. Recently studies show that OsPHR2, OsSPX1, OsmiR399, OsPHO, OsIPS1, OsIPS2, OsSIZ1 and pht1 family have been shown to be involved in the phosphate-related signal transduction and regulation pathways. OsPHR2 and OsSPX1 have the similar function with the homologous genes in Arabidopsis thaliana, overexpression of OsPHR2 and suppression of OsSPX1 are resulted in severe signs of toxicity caused by the over-accumulation of Pi. The majority of the plants PTs belong to the Pht1 family. Recent study advances of Phosphate-Signaling Pathway in rice were reviewed.