Caroline Bellenot

A Xanthomonas effector increases virulence quantitatively by inducing at least 3 minor susceptibility genes

Brice Charleux, Carine Gris, Sébastien Carrère, Álvaro L. Pérez‐Quintero et autres

The transcription activator-like effector Tal12a is widely conserved among Xanthomonas campestris pv. campestris strains that cause black rot in Brassica crops. However, its role in disease remains unclear. To investigate how Tal12a contributes to pathogenesis, we combined transcriptomic profiling of cauliflower leaves …

fr, us (code pays fourni par la source)

Leaf hydraulics is a core component of plant immunity

Soline Marty, Caroline Bellenot, Damien Vasselon, Magali Goussot et autres

Abstract Hydathodes at leaf margins mediate guttation of xylem-derived fluids and serve as primary entry sites for adapted vascular bacterial pathogens such as Xanthomonas campestris . Infection of Arabidopsis mutants with fewer hydathodes resulted in spontaneous mesophyll water-soaking and revealed unexpectedly-large pathogen …

fr (code pays fourni par la source)

Report of the Third International Workshop on Horizon Scanning for Plant Health

de l'Environnement et du Travail Agence Nationale de Sécurité Sanitaire de l'Alimentation, European Food Safety Authority, European Commission Joint Research Centre, Sara Tramontini et autres

This report summarizes the Third International Workshop on Horizon Scanning for Plant Health, held on 2-4 December 2025, at the ANSES headquarters in Maison-Alfort, France. The main objective of this third workshop was the identification of risk drivers for plant pests. The …

it, fr, be (code pays fourni par la source)

Report of the Third International Workshop on Horizon Scanning for Plant Health

de l'Environnement et du Travail Agence Nationale de Sécurité Sanitaire de l'Alimentation, European Food Safety Authority, European Commission Joint Research Centre, Sara Tramontini et autres

This report summarizes the Third International Workshop on Horizon Scanning for Plant Health, held on 2-4 December 2025, at the ANSES headquarters in Maison-Alfort, France. The main objective of this third workshop was the identification of risk drivers for plant pests. The …

it, fr, be (code pays fourni par la source)

A Xanthomonas effector increases virulence quantitatively by inducing at least three minor susceptibility genes

Brice Charleux, Carine Gris, Sébastien Carrère, Álvaro L. Pérez‐Quintero et autres

Summary The transcription activator-like effector Tal12a is widely conserved among Xanthomonas campestris pv. campestris strains that cause black rot in Brassica crops. However, its role in disease remains unclear. To investigate how Tal12a contributes to pathogenesis, we combined transcriptomic profiling of cauliflower …

fr, us (code pays fourni par la source)

A framework for the formation of hydathodes, small and often overlooked structures playing a role in water fluxes and photosynthesis

Pauline Savourat, Damien Vasselon, Soline Marty, Caroline Bellenot et autres

International audience

Arabidopsis hydathodes are sites of auxin accumulation and nutrient scavenging

Jean‐Marc Routaboul, Caroline Bellenot, Aurore Olympio, Gilles Clément et autres

Hydathodes are small organs found on the leaf margins of vascular plants which release excess xylem sap through a process called guttation. While previous studies have hinted at additional functions of hydathode in metabolite transport or auxin metabolism, experimental support is limited. …

fr, de (code pays fourni par la source)

A fully sequenced collection of homozygous EMS mutants for forward and reverse genetic screens in Arabidopsis thaliana

Sébastien Carrère, Jean‐Marc Routaboul, Pauline Savourat, Caroline Bellenot et autres

Genetic screens are powerful tools for biological research and are one of the reasons for the success of the thale cress Arabidopsis thaliana as a research model. Here, we describe the whole-genome sequencing of 871 Arabidopsis lines from the Homozygous EMS Mutant …

fr, de (code pays fourni par la source)

A fully sequenced collection of homozygous EMS mutants for forward and reverse genetic screens in Arabidopsis thaliana

Sébastien Carrère, Jean‐Marc Routaboul, Pauline Savourat, Caroline Bellenot et autres

Abstract Genetic screens are powerful tools for biological research and are one of the reasons for the success of the thale cress Arabidopsis thaliana as a model species. Here, we describe the whole-genome sequencing of 871 Arabidopsis lines from the Homozygous EMS …

fr, de (code pays fourni par la source)

Arabidopsis hydathodes are sites of intense auxin metabolism and nutrient scavenging

Jean‐Marc Routaboul, Caroline Bellenot, Gilles Clément, Sylvie Citerne et autres

Abstract Hydathodes are small organs located on the leaf margins of all vascular plants. They release excess xylem sap through guttation when stomata are closed or when the humidity level is high. Many promoter analyses have suggested other hydathode functions in metabolite …

fr, de (code pays fourni par la source)

Hydathodes

Caroline Bellenot, Jean‐Marc Routaboul, Patrick Laufs, Laurent D. Noël

fr (code pays fourni par la source)

Analyse génétique et moléculaire de l'immunité des hydathodes et du système vasculaire des Brassicacées

Caroline Bellenot

Hydathodes were first characterized at the end of the XIXth century by Anton de Bary, a Prussian botanist, surgeon and microbiologist. Since, theses organs are studied sporadically, even if they are present on leaves of most vascular plants. Localized at the leaf …