Roses are red, violets are blue, impatiens are . . . yellow?
Not yet, but perhaps one day. Researchers recently ground up 32 kilograms of snapdragon buds to extract and identify the enzyme responsible for making aurone flavonoids, an important source of yellow color in many flowers. In the Nov. 10 Science, the team reports that it also determined the gene that codes for this enzyme, called aureusidin synthase.