The effects of S and Se treatment on cabbage, especially the interactions of S and Se metabolism with the biosynthesis of glucosinolate (GSL), including glucoraphanin, which is a major aliphatic GSL in cruciferous vegetables and the precursor of the anticancer compound sulforaphane, were examined. Cabbage plants were treated with sulfate and selenite (SeO32-), and the total S, Se, and GSL contents of cabbage head and outer foliage leaves were measured. Results showed that selenite treatment was beneficial to GSL biosynthesis and Se accumulation in cabbage head and outer foliage leaves. GSL syn...