A mathematical model explores the contributions of bending and stretching forces to shoot gravitropism in Arabidopsis.

ABSTRACT: Plant shoot gravitropism is a complex phenomenon resulting from gravity sensing, curvature sensing (proprioception), the ability to uphold self-weight and growth. Although recent data analysis and modelling have revealed the detailed morphology of shoot bending, the relative contribution of bending force (derived from the gravi-proprioceptive response) and stretching force (derived from shoot axial growth) behind gravitropism remains poorly understood. To address this gap, we combined morphological data with a theoretical model to analyze shoot bending in wild-type and lazy1-like 1 mutant Arabidopsis thaliana. Using data from actual bending events, we searched for model parameters that minimized discrepancies between the data and mathematical model. The resulting model sugges

SUBMITTER: Tsugawa S 

PROVIDER: S-EPMC10095965 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature