FERONIA and microtubules independently contribute to mechanical integrity in the Arabidopsis shoot.

ABSTRACT: To survive, cells must constantly resist mechanical stress. In plants, this involves the reinforcement of cell walls, notably through microtubule-dependent cellulose deposition. How wall sensing might contribute to this response is unknown. Here, we tested whether the microtubule response to stress acts downstream of known wall sensors. Using a multistep screen with 11 mutant lines, we identify FERONIA (FER) as the primary candidate for the cell's response to stress in the shoot. However, this does not imply that FER acts upstream of the microtubule response to stress. In fact, when performing mechanical perturbations, we instead show that the expected microtubule response to stress does not require FER. We reveal that the feronia phenotype can be partially rescued by reducing tensile stre

SUBMITTER: Malivert A 

PROVIDER: S-EPMC8612563 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature