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Removal of chloroform from hydroponic solution in 1 week. Cuttings of null vector control poplar and two independent plant lines transformed with CYP2E1 were incubated in 40-ml glass vials containing chloroform. After 7 days, chloroform was extracted with hexane. The extracts were analyzed with GC-ECD by using external standards. Standard errors are presented by the SEM.
