Chorismate in the Plant Cytosolin Tobacco: Evidence

is not normally present in plants, The expression of this ubiC construct in tobacco resulted in a formation of 4HB as a new, artificial secondary metabolite in tobacco, which was accumulated in form of glucosides (Siebert et al, 1996) and also incorporated into the cell wall (Li et al. 1997), First experiments suggested that this transformation may increase plant disease resistance (Heide et al. 1997). Using an inducible p]ant prQmoter, the expression of the ubiC gene could be closely regulated by the addition of an inducer substance (Sommer et al. 1998). In the present study, we attempted to express the ubiC