Question: What role does A. tumefaciens play in producing GM plants? Multiple Choice Genes from A. tumefaciens provide plants with resistance to pests. Genes from A. tumefaciens enhance production of vitamin A and thereby boost the nutritional profile of plants. A. tumefaciens acts as a vector for introducing foreign genes into plants. A. tumefaciens has been gentically modified to produce the fluorescent dyes used to create the DNA probes needed to create GM plants.