17.02.2015 | permalink
Hyeonju Lee, a technician at Kansas State University's Plant Transformation Laboratory, introduces a mix of rice DNA, which has been manipulated in the lab to enhance gene expression in wheat, and small particles of tungsten into embryogenic wheat callus, or a mass of plant tissue cells. A blast of helium is used to shoot the mixture into the callus tissue, which then genetically engineers single cells that each have the potential to grow into an individual cell.