As the world's population rises, scientists want to edit the genes of potatoes and wheat to help them fight plant diseases that cause famine.
By 2040, there will be 9 billion people in the world. "That's like adding another China onto today's global population," said Professor Sophien Kamoun of the Sainsbury Laboratory in Norwich, UK.
Prof. Kamoun is one of a growing number of food scientists trying to figure out how to feed the world. As an expert in plant pathogens such as Phytophthora infestans – the fungus-like microbe responsible for potato blight – he wants to make crops more resistant to disease.