Figure 9. A model for glucose-regulated glucosinolate biosynthesis in Arabidopsis.
Glucose plays a key and positive role in both primary and secondary metabolism. Symbols with light green color represent sulfate metabolism pathway. Symbols with dark green color represent aliphatic glucosinolate biosynthesis and regulation. Symbols with blue color represent indolic glucosinolate biosynthesis and regulation. Multiple enzymatic steps are indicated with interrupted arrows. GLC, glucose; Met, methionine; Trp, tryptophan; Desulfo-GS, Desulfo-glucosinolates; – – – –> possible activation.