Plants stay neatly patterned as they grow, and PLETHORA proteins may explain why

How do plants achieve their remarkably regular arrangement of leaves and flowers? And why does this pattern remain so stable, even as plants grow and respond to their environment? Researchers at Wageningen University & Research and the Dutch fruit and vegetable breeding company Rijk Zwaan have identified the biological mechanisms that underpin this precision. Central to the process are so-called PLETHORA proteins, which act as key regulators of plant growth.