PLANTS - Key pathway for plant cell growth identified

For plants, the only way to grow is for cells to expand. Unlike animals, cell division in plants happens only within a tiny region of the root and stem apex, making cell expansion the critical path to increased stature. Now, a team of scientists reports the discovery of a hormone and receptor that control cell expansion in plants ...

http://www.sciencedaily.com/releases/2014/01/140123141713.ht