(D–F) Genetically modified ovules at 1 DAP (D), 2 DAP (E), and 3 DAP (F). A research group led by Nagoya University in Japan has discovered a new tissue in plants that is essential for seed formation.

Now a study by biologists and biophysicists at Université de Montréal reveals how plants build their organs in three dimensions ... which are organized into tissue layers. The epidermis, the most ...