 In 1983 the first genetically engineered plant was developed by Michael W. Bevan, Richard B. Flavell and Mary-Dell Chilton.They infected tobacco with "Agrobacterium" transformed with an antibiotic resistance gene and through tissue culture techniques were able to grow a new plant containing the resistance gene.The gene gun was invented in 1987, allowing transformation of plants not susceptible to "Agrobacterium" infection.