FIGURE 2.

Biofortified crops. (A) Golden Rice has a yellow to orange color compared with normal rice. The more intense the color, the more β-carotene. Image courtesy of the Golden Rice Humanitarian Board and www.goldenrice.org. (B) Wheat grains treated with a histological stain that turns blue in the presence of iron. In wild-type, blue color is observed in the outer layers of grain, which do not form the flour. However, in transgenic grain, iron accumulation is observed in the central region, making it more bioavailable in wheat flour. Image courtesy of J Connorton.