| Modification Notes |
The shoot and root meristems of higher plants are multicellular structures that initiate postembryonic organogenesis (1,2). Meristems maintain their size and structure by coordinating organ initiation with stem cell renewal (1,2). In the shoot meristem, WUSCHEL is responsible for stem cell identity, while CLAVATA1, 2 and 3 promote organ initiation, which leads to the formation of leaves and inflourescences (1-4). In the root meristem, asymmetric cell division is required for the formation of ground tissue, which is mediated by the SHORT-ROOT (SHR) protein and the radial patterning in the root, hypocotyl and inflourescences, which is mediated by SCARECROW (SCR) (5-7). |