Biosynthetic studies on chlorinated indoles in Vicia faba

We identified L-4-chlorotriptophan (L-4-Cl-Trp) in two week old plants of Vicia faba. Deuterium labeled indole was incorporated to 4-chloroindole in these plants. Deuterium labeled L- and D-4-Cl-Trp were both synthesized and, when supplied to the plants only L-4-Cl-Trp was incorporated to 4-Cl-indoleacetic acid, although the incorporation ratio was very low… (More)