AtDAT1 Is a Key Enzyme of D-Amino Acid Stimulated Ethylene Production in .

D-Enantiomers of proteinogenic amino acids (D-AAs) are found ubiquitously, but the knowledge about their metabolism and functions in plants is scarce. A long forgotten phenomenon in this regard is the D-AA-stimulated ethylene production in plants. As a starting point to investigate this effect, the accession Landsberg (L) got into focus as it was found defective in metabolizing D-AAs.