As shown in Fig. 1, the changes in glucosinolate contents were sig-
nificant among different plant hormone treatments. The glucobrassicin
and neoglucobrassicin were rapidly induced by MeJA treatment, and
the peaks emerged at 1 d after treatment. The maximum value of
glucobrassicin and neoglucobrassicin were 4.25 and 3.16 μmol g −1
DW,being5.2and14.2foldhigherthanthatofthecontrol,respectively.
On the contrary, 4-methoxyglucobrassicin, another indole glucosin-
olate, was only slightly induced by MeJA treatment. In addition, MeJA
treatment could also cause significant increase in progoitrin at the