A. Voxeur

Galacturonic acid oxidation: a radical way to stick together

This study identifies galacturonic acid and its oxidized form, galactaric acid, as key monomers regulating cell adhesion through extensin crosslinking in plant cell walls.

A change in the cell wall status initiates the elimination of the nucellus in Arabidopsis

The paper shows that pectin degradation in the cell wall initiates nucellus elimination in Arabidopsis, regulated by TRANSPARENT TESTA 16, and suggests this cell wall change drove seed evolution.

Unravelling the Interplay of Nitrogen Nutrition and the Botrytis cinerea pectin lyase BcPNL1 in Modulating Arabidopsis thaliana Susceptibility

This study shows that nitrogen availability influences BcPNL1-mediated pectin degradation in Arabidopsis, increasing susceptibility to Botrytis cinerea through jasmonic acid repressor gene expression.

Inositolphosphate glycans accumulate and suppress plant defense during Arabidopsis/Botrytis interaction

This study identifies inositol phosphate glycans (IPGs) released by Botrytis cinerea that mimic host-derived IPGs and suppress plant defense in Arabidopsis thaliana.

Fine-Tuning and Remodelling of Pectins Play a Key Role in the Maintenance of Cell Adhesion

This study investigates how endogenous oligogalacturonides and pectin modifications regulate cell adhesion in Arabidopsis through gene expression and structural analysis.

Chitosan stimulates root hair callose deposition and inhibits root hair growth

This study shows chitosan induces callose deposition and slows root hair growth in Arabidopsis, with distinct responses at low and high concentrations, and identifies conserved mechanisms in related plant structures.

The structural, dynamical and biochemical characterizations of Verticillium dahliae pectate lyase, VdPelB, highlight its specificities

This study characterizes VdPelB, a pectate lyase from Verticillium dahliae, revealing its structural, dynamic, and biochemical properties and substrate specificity.

Differences in the structure of plant polygalacturonases specify enzymes dynamics and processivities to fine-tune cell wall pectins

This study reports the crystal structures of two Arabidopsis polygalacturonases, showing structural differences that lead to distinct enzyme dynamics and processivities, impacting root development.

Impairment of the cellulose degradation machinery enhances fungal virulence but limits reproductive fitness

The paper shows that impairing cellulose degradation in Fusarium oxysporum increases virulence but reduces reproductive fitness.

Pectin remodeling belongs to a homeostatic system and triggers transcriptomic and hormonal modulations

The paper investigates how pectin methylesterification status affects seed-to-seedling transition by altering transcriptomic and hormonal profiles in Arabidopsis.

Plant inositol-phosphate-glycans and a fucosylated xyloglucan oligosaccharide are accumulated upon Arabidopsis thaliana/ Botrytis cinerea infection

The paper identifies seven inositol-phosphate glycans (IPGs) accumulated in Arabidopsis thaliana during infection with Botrytis cinerea, suggesting a potential role in immune signaling.

Arabidopsis AtPME2 has a pH-dependent processivity and control cell wall mechanical properties

The paper shows AtPME2's pH-dependent processivity affects cell wall mechanical properties and plant development.