- Information
- Symbol: OsGGP
- MSU: LOC_Os12g08810
- RAPdb: Os12g0190000
- Publication
- Ascorbate biosynthesis and its involvement in stress tolerance and plant development in rice Oryza sativa L.., 2015, Plant Mol Biol.
- Effect of Rice GDP-L-Galactose Phosphorylase Constitutive Overexpression on Ascorbate Concentration, Stress Tolerance, and Iron Bioavailability in Rice, 2020, Front Plant Sci.
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Genbank accession number
- Key message
- All plants except for KO mutants of OsGGP showed distinct peaks in foliar AsA concentrations during the growth, which were consistent with up-regulation of OsGGP, suggesting that OsGGP plays a pivotal role in regulating foliar AsA levels during different growth stages
- Mutants showed lower biomass production than their wild-types, especially when OsGGP was lacking (around 80 % reductions)
- Foliar ascorbate concentrations were significantly increased in 35S-OsGGP plants in the vegetative growth phase relative to NS, but significantly reduced at the reproductive growth phase and were associated with reduced OsGGP transcript levels
- Connection
- OsGGP, OsMIOX, Ascorbate biosynthesis and its involvement in stress tolerance and plant development in rice Oryza sativa L.., KO of two isoforms of GDP-D-mannose epimerase (OsGME) reduced the foliar AsA level by 20-30 %, and KO of GDP-L-galactose phosphorylase (OsGGP) by 80 %, while KO of myo-inositol oxygenase (OsMIOX) did not affect foliar AsA levels
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