Figure 3.

Trichloroethanol in tissues of transgenic tobacco plants after exposure to TCE for 5 days. Three transgenic plants containing the null vector and eight transgenic plants containing P450 2E1 were tested for the ability to metabolize TCE. One cutting of each plant was grown hydroponically under sterile conditions before being exposed to 118 μg/ml TCE for 5 days. Tissues were extracted and, the samples were run on a GC-ECD. Values were normalized to an internal standard. Averages and SDs from two independent experiments are presented as recovery of trichloroethanol per g of tissue.