Os03g0150600

The rice Os03g0150600 was reported as OsPT1 in 2012 by researchers from China.

Annotated Information

Gene Symbol

• Os03g0150600 <=> OsPT1, PHT1-1, OsPht1;1, Pht1;1
• OsPT1 is a key member of the Pht1 family involved in Pi uptake and translocation in rice under Pi-replete conditions.
• OsPT1 expression was strongly enhanced by the mutation of Phosphate Overaccumulator2 (OsPHO2) but not by Phosphate Starvation Response2, indicating that OsPT1 is involved in the OsPHO2-regulated Pi pathway.

Phenotypic analysis

• Transgenic plants of OsPT1 overexpression lines and RNA interference knockdown lines contained significantly higher and lower phosphorus concentrations, respectively, compared with the wild-type control in Pi-sufficient shoots.
• These responses of the transgenic plants to Pi supply were further confirmed by the changes in depolarization of root cell membrane potential, root hair occurrence, 33 P uptake rate and transportation, as well as phosphorus accumulation in young leaves at Pi-sufficient levels.

Expression

• OsPT1 was expressed abundantly and constitutively in various cell types of both roots and shoots.

Evolution

• OsPT1 was able to complement the proton-coupled Pi transporter activities in a yeast mutant defective in Pi uptake.

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Labs working on this gene

• State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China