[The organic acids in the cambial sap of Larix decidua MILL].

The quantitatively most important organic acids in the cambial sap of Larix decidua have been isolated and characterised. Quinic acid predominated and smaller amounts of shikimic acid, malic acid, oxalic acid, amino acids and sugar phosphates were also present. It is shown by the aphid-technique that quinic acid is probably transported in the phloem from the young needles and shoots to the cambial zones of the tree.