Unlike us, plants don't need pantries full of food to stay alive; the Sun is their pantry. But, like us, they require fairly regular sustenance, which they create via photosynthesis. This seemingly ...

Cross sections of C3 rice (left) and C4 sorghum (right) shoots. Both grain crops evolved from a common ancestor, but sorghum evolved to photosynthesize more efficiently. LA JOLLA (November 20, ...