Biosynthesis of L-ascorbic acid in plants: new pathways for an old antioxidant.

  title={Biosynthesis of L-ascorbic acid in plants: new pathways for an old antioxidant.},
  author={Victoriano Valpuesta and Miguel A Botella},
  journal={Trends in plant science},
  volume={9 12},
The biosynthetic pathway of L-ascorbic acid (vitamin C) in plants has been established for several years. However, recent reports describe alternative pathways, revealing a more complex picture of L-ascorbic acid biosynthesis than had been expected. GDP-L-gulose and myo-inositol are proposed as new intermediates in L-ascorbic acid biosynthesis, indicating that part of the animal pathway might also be operating in plants. Enzymatic studies on the GDP-mannose- 3',5'-epimerase and L-galactono-1,4… CONTINUE READING

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Ascorbic acid, a familiar small molecule intertwined in the response of plants to ozone, pathogens, and the onset of senescence

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