Spemann's organizer

Spemann's organizer is a group of cells in early developing embryos that plays a crucial role in shaping the organism's body plan. Discovered by German embryologist Hans Spemann in the early 20th century, this region orchestrates the development of surrounding tissues, guiding them to form specific structures like the nervous system. By inducing neighboring cells to differentiate into various types, the organizer helps establish the overall layout of the organism. Its discovery advanced our understanding of developmental biology and the key processes that govern how complex organisms form from a single fertilized egg.