Fig. 2.

The tolerance of MuSI transgenic tobacco for Cd stress. a Effect of 200 μM Cd on the growth of wild-type tobacco and MuSI transgenic tobacco plants. Symptoms were visually observed at harvest. b Comparison of the fresh and dry weight of MuSI transgenic and wild-type tobacco plants treated with 0, 50, 100, or 200 μM Cd. Values are the average of six plants from each treatment. Error bars standard error. c Comparison of the growth of MuSI transgenic tobacco and wild-type tobacco plants in the presence of Cd. RDCs of the leaves from plants exposed to 50, 100, or 200 μM Cd are shown. Values are the average of six plants from each treatment. Error bars standard error. d Effect of Cd treatment on the formation of trichomes in the leaves from MuSI and wild-type tobacco plants as analyzed by SEM. Arrowheads indicate that short trichomes were sprung up by Cd treatment