“…Much plant transformation has been aimed at the production of virus-resistant plants, the most successful strategy for which has been transformation, such that plants express the coat protein gene (PoweU-Abel et al, 1986;Van Dun et al, 1987;Tumer et al, 1987;Loesch-Fries et al, 1987;Cuozzo et al, 1988;Van Dun & Bol, 1988;Hemenway et al, 1988;Hoekema et al, 1989;MacKenzie & Tremaine, 1990). Since the degree of protection is correlated with the amount of coat protein produced in the plants (Nejidat & Beachy, 1989), we sought to maximize the coat protein production using the 'omega-prime' translation enhancer sequence derived from tobacco mosaic virus (Gallie et al, 1987).…”