A5059982974- Plant nutrient uptake and metabolism
- Plant-Microbe Interactions and Immunity
- Plant Stress Responses and Tolerance
- Plant Pathogenic Bacteria Studies
- Soil Carbon and Nitrogen Dynamics
- Photosynthetic Processes and Mechanisms
- Plant Parasitism and Resistance
- Plant Micronutrient Interactions and Effects
- Oral microbiology and periodontitis research
- Orthodontics and Dentofacial Orthopedics
- Dental materials and restorations
- Legume Nitrogen Fixing Symbiosis
- Agriculture, Soil, Plant Science
- Temporomandibular Joint Disorders
- Phytase and its Applications
- Periodontal Regeneration and Treatments
- Plant Pathogens and Fungal Diseases
- Oral Health Pathology and Treatment
- Crop Yield and Soil Fertility
- Soil Geostatistics and Mapping
- Protease and Inhibitor Mechanisms
- Mycorrhizal Fungi and Plant Interactions
- Soil and Unsaturated Flow
- Microbial Community Ecology and Physiology
- Plant Taxonomy and Phylogenetics
Université de Rennes
2008-2024
Inserm
2023-2024
Centre Hospitalier Universitaire de Rennes
2020-2024
CIC Rennes
2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2023
Nutrition, métabolismes et cancer
2020-2023
Foie, Métabolisme, Cancer
2020
University of Manchester
2014
Université de Caen Normandie
2007-2014
Laboratoire d'Ecophysiologie Végétale, Agronomie & nutritions N.C.S
2008-2014
Plant cells can be sensitized toward a subsequent pathogen attack by avirulent pathogens or chemicals such as β-aminobutyric acid (BABA). This process is called priming. Using reverse genetic approach in Arabidopsis thaliana, we demonstrate that the BABA-responsive L-type lectin receptor kinase-VI.2 (LecRK-VI.2) contributes to disease resistance against hemibiotrophic Pseudomonas syringae and necrotrophic Pectobacterium carotovorum bacteria. Accordingly, LecRK-VI.2 mRNA levels increased...
Stomata play an important role in plant innate immunity by limiting pathogen entry into leaves but molecular mechanisms regulating stomatal closure upon perception are not well understood. Here we show that the Arabidopsis thaliana L-type lectin receptor kinase-V.5 (LecRK-V.5) negatively regulates immunity. Loss of LecRK-V.5 function increased resistance to surface inoculation with virulent bacteria Pseudomonas syringae pv tomato DC3000. Levels were affected after infiltration-inoculation,...
It has long been recognized that plant species and soil microorganisms. are tightly linked, but understanding how different vary in their effects on is currently limited. In this study, we identified those. characteristics (identity, specific functional traits, or resource acquisition strategy) were the best predictors of nitrification denitrification processes. Ten populations representing eight collected from three European grassland sites chosen for contrasting trait values strategies....
Backgrounds and Aims Leaf functional traits have been used as a basis to categoize plants across range of resource-use specialization, from those that conserve available resources exploit them. However, the extent which leaf define strategies are related root good indicators ability roots take up nitrogen (N) poorly known. This is an important question because interspecific differences in N uptake proposed one mechanism by species' coexistence may be determined. study therefore investigated...
Abstract Our goal was to identify the leaf proteomic changes which appeared during N remobilisation that were associated or not with senescence of oilseed rape in response contrasting nitrate availability. Remobilisation and status followed using 15 tracing, patterns chlorophyll level, total protein content a molecular indicator based on expression senescence‐associated gene 12/ Cab genes. Three phases distinguished. Proteomics revealed 55 proteins involved metabolism, energy,...
Despite its water-soluble chlorophyll-binding protein (WSCP) function, the putative trypsin inhibitor (TI) activity of Brassica napus drought 22 kD (BnD22) and physiological function in young leaves during leaf nitrogen (N) remobilization promoted by stressful conditions remains an enigma. Therefore, our objectives were to determine (1) if BnD22 is related 19-kD TI previously detected B. leaves, (2) levels transcripts, protein, are associated with plant responses stress (N starvation methyl...
Brassica napus L. (oilseed rape) is an important crop plant characterised by low nitrogen (N) use efficiency. This mainly due to a weak N recycling from leaves that related incomplete protein degradation. Assuming protease inhibitors are involved throughout mobilisation, the goal of this study was determine their role in control mobilisation associated with leaf senescence. Results showed 19-kDa polypeptide exhibiting trypsin inhibitor (TI) activity presented increased gradient older younger...
The pathway of carbon phloem loading was examined in leaf tissues the forage grass Lolium perenne. effect defoliation (leaf blade removal) on sucrose transport capacity assessed sheaths as major source for regrowth. via a combination electron microscopy, plasmolysis experiments and plasma membrane vesicles (PMVs) purified by aqueous two-phase partitioning from microsomal fraction. Results support an apoplastic mechanism. Imposition artificial proton-motive force to PMVs energized active,...
Plant stomata function in disease resistance by restricting bacteria entry inside leaves. During plant-bacteria interactions, stomatal closure is initiated the recognition of Microbe-Associated Molecular Patterns (MAMPs). Recently, we have shown that Lectin Receptor Kinase V.5 (LecRK-V.5) negatively regulates bacterium- and MAMP-induced upstream Reactive Oxygen Species (ROS) production mediated abscisic acid signaling. Closed lecrk-V.5 mutants are correlated with constitutive high level ROS...
Abstract Cessation of traditional management threatens semi‐natural grassland diversity through the colonisation or increase competitive species adapted to nutrient‐poor conditions. Regular mowing is one practice that controls their abundance. This study evaluated ecophysiological mechanisms limiting short‐ and long‐term recovery after for Festuca paniculata , a grass takes over subalpine grasslands in Alps following cessation mowing. We quantified temporal variations carbon (C) nitrogen (N)...
Brassica napus L. is an important crop plant, characterised by high nitrogen (N) levels in fallen leaves, leading to a significant restitution of this element the soil, with consequences at economic and environmental levels. It now well established that N leaves due weak remobilisation especially related incomplete degradation foliar proteins during leaf senescence. Identification residual (i.e. incompletely degraded last step process) constitutes information for improving nutrient use...
Abstract The gene, indole‐3‐butyric acid ( IBA )‐ RESPONSE IBR ) 3 , is thought to participate in peroxisomal β‐oxidation of indole‐3‐acetic acid. Here we show that may also play a role Arabidopsis thaliana defence response microbial pathogens. up‐regulated during infection by virulent Pseudomonas syringae pv . tomato Pst DC 3000 bacteria. Although mutant ibr3‐4 did not pathogen phenotype, lines overexpressing demonstrated enhanced susceptibility 3000. Increased phenotypes overexpressors...
Restorative treatment of microdontia teeth is often considered as the final step post-orthodontic treatment. Based on digital workflow, this clinical report presents pre-orthodontic reshaping anterior in smile disharmony a young patient using bilayering composite injection technique. Transparent silicone indexes for dentin and enamel fillings were fabricated from three-dimensional-printed models wax-up. This noninvasive, simple straightforward technique was able to provide semipermanent...
Background: The present article describes a step-by-step maximally digitalized workflow protocol with computer-aided design and manufacturing (CAD/CAM) in partial-arch edentulous patients rehabilitated fixed dental prostheses removable partial dentures (FDPs RPDs). Methods: Facial digitalization, intraoral scans, functional mandibular movement recordings were used to create 4D virtual patient on commercially available CAD software. components including post-and-cores, both metal-ceramic...