THERE IS PROVIDED BY THIS INVENTION A METHOD FOR GENETICALLY TRANSFORMING AN ORCHID WITH A FOREIGN GENETIC CONSTRUCT VIA PARTICLE BOMBARDMENT. THE METHOD COMPRISES PRE- AND POST- BOMBARDMENT STEPS TO IMPROVE THE EFFECTIVENESS OF THE BOMBARDMENT. THE PRE-BOMBARDMENT STEP COMPRISES SQUASHING TARGET TISSUES OF THE ORCHID AND THE POST-BOMBARDMENT STEP COMPRISES AN ANTIBIOTIC SELECTION REGIME USING INCREASING ANTIBIOTIC CONCENTRATIONS. THE METHOD MAY APPLY TO ANY SPECIES OF THE FAMILY ORCH-IDACEAE. BY CARRYING OUT THE METHOD OF THE PRESENT INVENTION, WE HAVE SUCCESSFULLY PRODUCED TRANSGENIC DENDROBIUM SAVIN WHITE THAT CONFERS RESISTANCE TO CYMBIDIUM MOSAIC VIRUS (CYMV). THE MOST ILLUSTRATIVE DRAWING IS FIGURE 3.
