Mouse eyes photosynthesize after plant-to-animal transplant

A chloroplast (green) dotted with the membranous stacks called thylakoid grana (black blocks). Scientists have harnessed grana to induce photosynthesis in mammalian cells. Credit: Biophoto Associates/Science Photo Library Photosynthetic machinery can be harvested from spinach and transplanted into the eyes of mice, where it transforms light into molecules that carry energy and can tame inflammation 1 . …