image: This is a computer simulation of the plant stem cell niche. This material relates to a paper that appeared in the Jan. 29, 2016, issue of Science, published by AAAS. The paper, by J. Gruel at University of Cambridge in Cambridge, UK, and colleagues was titled, "An epidermis-driven mechanism positions and scales stem cell niches in plants." view more
Credit: [Credit: Jeremy Gruel, Yassin Rehafi]