Fig. 1
From: Transcriptome comparison analyses in UV-B induced AsA accumulation of Lactuca sativa L
Biosynthesis and recycling pathways of ascorbic acid in plants. GPI: glucose-6-phosphate isomerase 2. PMI: mannose − 6- phosphate isomerase 3. PMM: phosphomannomutase 4. GMP: GDP- D-mannose pyrophosphorylase 5. GME:GDP-Dmannose-3′,5′-epimerase 6. GGP: GDP- L-galactose- phosphatase 7. GPP: L-galactose-1-phosphate phosphatase 8. GaIDH: L-galactose dehydrogenase 9. GLDH: L-galactono-1,4-lactone dehydrogenase 10. D-galacturonate-1-phosphate uridyltransferase 11. GaIUR: D-galacturonate reductase 12. aldonolactonase 13. NPP: nucleotide pyrophosphatase 14. sugar phosphatase 15. sugar dehydrogenase 16. GLO: L-gulono-1,4-lactone oxidase 17. MIOX: myo-inositol oxygenase 18. D-glucuronate reductase 19. L-gulonolactonase 20. APX: ascorbate peroxidase 21. AO: ascorbate oxidase 22. MDHAR: monodehydroascorbate reductase 23. DHAR: dehydroascorbate reductase 24. GR: glutathione reductase Note: Double arrows represent two-way reversible reactions, the single arrows represent one-way reactions, and the dotted arrows represent indirect reactions