OsIPS1

• Symbol: OsIPS1
• MSU: LOC_Os03g05334
• RAPdb: Os03g0146800

• OsMYB2P-1, an R2R3 MYB transcription factor, is involved in the regulation of phosphate-starvation responses and root architecture in rice, 2012, Plant Physiol.
• Regulation of the expression of OsIPS1 and OsIPS2 in rice via systemic and local Pi signalling and hormones, 2005, Plant Cell and Environment.
• Auxin response factor OsARF12, a novel regulator for phosphate homeostasis in rice Oryza sativa, 2014, New Phytol.
• MiR529a controls plant height, tiller number, panicle architecture and grain size by regulating SPL target genes in rice Oryza sativa L., 2021, Plant Sci.
• Modulation of nitrate-induced phosphate response by the MYB transcription factor RLI1/HINGE1 in the nucleus, 2020, Mol Plant.

Genbank accession number

• An analysis of transgenic plants showed that OsIPS1/2 are independently responsive to Pi signalling and are mainly expressed in lateral roots and in the vascular cylinder in the primary root
• Accumulation of the mRNA of OsIPS1/2 was examined by northern blotting and quantitative reverse transcriptase-polymerase chain reaction in whole-root and split-root experiments under treatment with phosphate (Pi) and the Pi analogue phosphite (Phi)
• OsIPS1 showed much higher mRNA accumulation in roots than OsIPS2, and an opposite trend was seen in shoots
• OsIPS1/2 showed both systemic and local responses to Pi starvation, and less than 10% of the overall induced mRNA level was due to the local Pi concentration in roots
• Regulation of the expression of OsIPS1 and OsIPS2 in rice via systemic and local Pi signalling and hormones

• OsIPS1, OsMYB2P-1, OsMYB2P-1, an R2R3 MYB transcription factor, is involved in the regulation of phosphate-starvation responses and root architecture in rice, Overexpression of OsMYB2P-1 led to greater expression of Pi-responsive genes such as Oryza sativa UDP-sulfoquinovose synthase, OsIPS1, OsPAP10, OsmiR399a, and OsmiR399j