Microtubule-based nucleation results in a large sensitivity to cell geometry of the plant cortical array.

ABSTRACT: Many plant cell functions, including cell morphogenesis and anisotropic growth, rely on the self-organisation of cortical microtubules into aligned arrays with the correct orientation. An important ongoing debate is how cell geometry, wall mechanical stresses, and other internal and external cues are integrated to determine the orientation of the cortical array. Here, we demonstrate that microtubule-based nucleation can markedly shift the balance between these often competing directional cues. For this, we developed a novel, more realistic model for microtubule-based nucleation in the simulation platform CorticalSim, which avoids the longstanding inhomogeneity problem stemming from previous, less realistic models for microtubule-based nucleation. We show that microtubule-based nucleation i

SUBMITTER: Saltini M 

PROVIDER: S-EPMC12425394 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature