Researchers at the University of Guelph are finding new ways to produce fusarium-resistant corn plants from pollen. The process involves extracting pollen from mature plants and holding it in a dish where it can be exposed to screenings. The millions of pollen grains being held are exposed to  acids found in fusarium that help the disease break down plants to help penetrate it and to UV lights which kills most of the pollen grains but some are mutated and remain. The researchers then select the pollen grains that are able to survive the screening and have the desired traits they are after. The surviving embryos are then grown to maturity in a lab and put through test to see how resistant they are. This process allows for creating disease resistant plants while not altering the genes, meaning they are not transgenic. Not being transgenic allows the plants to avoid the regulations and scrutiny that comes with other mutated plants.