Fig. 2.

Summary of sulphur metabolism in broccoli. Sulphate, S-methyl cysteine sulphoxide, cysteine and methionine amino acids within proteins, glutathione and methionine-derived and tryptophan-derived glucosinolates are the major sulphur-containing metabolites. Sulphur pools are shown in yellow. ATPS, Adenosine triphosphate-sulphurylase; APR, APS reductase; APK, APS kinase; SiR, sulfite reductase; MAM, methylthioalkylmalate synthase; CYP, cytochrome P-450; SUR1, superroot 1; UGT, S-glycosyltransferase; SOT, Sulfotransferase; FMO, flavin-monooxygenase. Genes in bold have been shown to be upregulated by Myb28 in Arabidopsis (details in text)