The Biosynthesis of (+)-Tartaric Acid in Pelargonium crispum.

  title={The Biosynthesis of (+)-Tartaric Acid in Pelargonium crispum.},
  author={Glenn J Wagner and Frank A. Loewus},
  journal={Plant physiology},
  volume={52 6},
Metabolic conversion of l-galactono-1, 4-lactone and l-ascorbic acid to (+)-tartaric acid and oxalic acid has been studied in Pelargonium crispum, cv. Prince Rupert. Experiments with specifically labeled substrates suggest a path of conversion involving cleavage of l-ascorbic acid, or a metabolic product of l-ascorbic acid, between C(2) and C(3), such that oxalic acid arises from the two carbon fragment and (+)-tartaric acid from the four carbon fragment.