Assessing the hydromechanical control of plant growth

• DOI: 10.1101/2023.09.21.558781
• Publication Date: 2023-09-24T01:05:14Z
• Authors: Valentin Laplaud; Elise Muller; Natalia Demidova; Stéphanie Drevensek; Arezki Boudaoud
• Keywords: Elasticity; Plant cell

Abstract Multicellular organisms grow and acquire their shapes through the differential expansion deformation of cells. Recent research has addressed role cell tissue mechanical properties in these processes. In plants, it is believed that growth rate a function stress exerted on wall, thin polymeric layer surrounding cells, involving an effective viscosity. Nevertheless, recent studies have questioned this view, suggesting wall elasticity sets or uptake water limiting for plant growth. To assess issues, we developed microfluidic device to quantify rates, elastic properties, hydraulic conductivity individual Marchantia polymorpha plants controlled environment with high throughput. We characterized effect osmotic treatment abscisic acid hydromechanical properties. Overall, instantaneous individuals correlated both bulk modulus conductivity. Our results are consistent framework which determined primarily by its remodelling, secondarily Accordingly, coupling between chemistry hydromechanics appears as key set patterns during morphogenesis.