Review – Cellular basis of growth in plants: geometry matters (COPB – $) 

Plants exhibit various forms which are determined by the individual cells. The diversity of cell shapes within a single organism is astounding and results from the interactions between the pressure generated by the cell and surrounding tissue as well as heterogeneities in the cell wall composition. As the pressure within the cell is comparable with the pressure within the champagne bottle, the cell wall is determining the growth direction. When cell wall composition is uniform, the stress distribution depends on cell geometry. Kierzkowski & Routier discuss in their review how cell and organ shapes arise based on cell geometry and tissue context. In the future, integrating life-imaging, mechanical measurements and modeling will provide a better understanding of the regulation of cell shape and organ growth. (Summary by Magdalena Julkowska) Curr. Op in Plant Bio. 10.1016/j.pbi.2018.09.008