He genetically modified rice to produce the relevant parts of cedar pollen, a common allergen in Japan, and fed the rice to a group of mice allergic to the pollen for four weeks.

• 他改造稻米的基因，以制造香松木花粉里有用的过敏原，一种日本常见的过敏原，并以这批米喂食一小群对花粉过敏的老鼠四周。