Stomatal opening efficiency is controlled by cell wall organization in Arabidopsis thaliana.

ABSTRACT: Stomatal function in plants is regulated by the nanoscale architecture of the cell wall and turgor pressure, which together control stomatal pore size to facilitate gas exchange and photosynthesis. The mechanical properties of the cell wall and cell geometry are critical determinants of stomatal dynamics. However, the specific biomechanical functions of wall constituents, for example, cellulose and pectins, and their impact on the work required to open or close the stomatal pore are unclear. Here, we use nanoindentation in normal and lateral directions, computational modeling, and microscopic imaging of cells from the model plant Arabidopsis thaliana to investigate the precise influences of wall architecture and turgor pressure on stomatal biomechanics. This approach allows us to qu

SUBMITTER: Keynia S 

PROVIDER: S-EPMC10508357 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature