A5018849181- Plant-Microbe Interactions and Immunity
- Plant Pathogens and Fungal Diseases
- Plant Parasitism and Resistance
- Wheat and Barley Genetics and Pathology
- Plant Molecular Biology Research
- Plant Stress Responses and Tolerance
- Insect-Plant Interactions and Control
- Plant Gene Expression Analysis
- Mycorrhizal Fungi and Plant Interactions
- Insect behavior and control techniques
- Lignin and Wood Chemistry
- Analytical Chemistry and Chromatography
- Agriculture, Plant Science, Crop Management
- Plant tissue culture and regeneration
- Insect Utilization and Effects
- Plant Pathogenic Bacteria Studies
- Plant nutrient uptake and metabolism
- Plant and animal studies
- Sphingolipid Metabolism and Signaling
- Plant Virus Research Studies
- Horticultural and Viticultural Research
- Enzyme-mediated dye degradation
- Legume Nitrogen Fixing Symbiosis
- Plant Reproductive Biology
- Biochemical and biochemical processes
Université de Strasbourg
2020-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025
Institut National des Sciences Appliquées Rouen Normandie
2024
Centre National de la Recherche Scientifique
2009-2024
Université de Rouen Normandie
2024
Normandie Université
2024
Polymères, Biopolymères, Surfaces
2024
Institut Jean-Pierre Bourgin
2010-2023
Institut Français de la Vigne et du Vin
2022-2023
AgroParisTech
2010-2014
Abstract The function of PsBRC1, the pea (Pisum sativum) homolog maize (Zea mays) TEOSINTE BRANCHED1 and Arabidopsis (Arabidopsis thaliana) (AtBRC1) genes, was investigated. Psbrc1 mutant displays an increased shoot-branching phenotype, is able to synthesize strigolactone (SL), does not respond SL application. level pleiotropy SL-deficient ramosus1 (rms1) higher than in mutant, rms1 exhibiting a relatively dwarf phenotype more extensive branching at upper nodes. PsBRC1 gene mostly expressed...
Inactivation of Arabidopsis WAT1 (Walls Are Thin1), a gene required for secondary cell-wall deposition, conferred broad-spectrum resistance to vascular pathogens, including the bacteria Ralstonia solanacearum and Xanthomonas campestris pv. campestris, fungi Verticillium dahliae albo-atrum. Introduction NahG, bacterial salicylic acid (SA)-degrading salicylate hydroxylase gene, into wat1 mutant restored full susceptibility both R. X. campestris. Moreover, SA content was constitutively higher...
Proanthocyanidins (PAs) are seed coat flavonoids that impair the digestibility of Brassica napus meal. Development low-PA lines is associated with a high-quality meal and increased contents in oil proteins, but requires better knowledge flavonoids. Flavonoids mature mostly insoluble so very few qualitative quantitative data available yet. In present study, profiling was established eight black-seeded B. genotypes, during development when soluble were predominated over forms. Thirteen...
Water economy in agricultural practices is an issue that being addressed through studies aimed at understanding both plant water-use efficiency (WUE), i.e. biomass produced per water consumed, and responses to shortage. In the model species Arabidopsis thaliana, ESKIMO1 (ESK1) gene has been described as involved freezing, cold salt tolerance well economy: esk1 mutants have very low evapo-transpiration rates high efficiency. order establish ESK1 function, detailed characterization of carried...
The modulation of primary nitrogen metabolism by water deficit through ABA-dependent and ABA-independent pathways was investigated in the model legume Medicago truncatula. Growth glutamate were followed young seedlings growing for short periods darkness submitted to a moderate (simulated polyethylene glycol; PEG) or treated with ABA. Water induced an ABA accumulation, reduction axis length manner, inhibition uptake/retention manner. PEG-induced accumulation free amino acids (AA), principally...
Cereal crop by-products are a promising source of renewable raw material for the production biofuel from lignocellulose. However, their enzymatic conversion to fermentable sugars is detrimentally affected by lignins. Here characterization Brachypodium Bd5139 mutant provided with single nucleotide mutation in caffeic acid O-methyltransferase BdCOMT6 gene reported. This BdCOMT6-deficient displayed moderately altered lignification mature stems. The lignin-related was also found be expressed...
Summary Grapevine trunk diseases have devastating consequences on vineyards worldwide. European wild grapevines ( Vitis vinifera subs. sylvestris ) from the last viable population in Germany along Rhine river showed variable degrees of resistance against Neofusicoccum parvum (strain Bt‐67), a fungus associated with Botryosphaeriaceae‐related dieback. Representative genotypes different subclades this were mapped respect to their ability induce wood necrosis, as well defence responses...
Background: Hydrophilic compounds, such as amino acids, organic acids and sugars, among others, are present in large amounts plant cells. The analysis quantification of these major hydrophilic compounds particularly relevant science because they have a considerable impact on the quality plant-derived products plant–pathogen relationships. Our objective was to develop validate complete workflow combining water-based extraction procedure with fast separation using interaction liquid...
The present study aimed to evaluate the potential of laminarin-based formulation Vacciplant protect and induce resistance in wheat against Zymoseptoria tritici, a major pathogen on this crop. Under greenhouse conditions, single foliar spraying product 2 days before inoculation with Z. tritici reduced disease severity pycnidium density by 42 45%, respectively. exhibited direct antifungal activity conidial germination both vitro planta. Moreover, it planta substomatal colonization as well...
Rhamnolipids (RLs), glycolipids biosynthesized by the Pseudomonas and Burkholderia genera, are known to display various activities against a wide range of pathogens. Most previous studies on RLs focused their direct antimicrobial activity, while only few reports described mechanisms which induce resistance phytopathogens related fitness cost plant physiology. Here, we combined transcriptomic metabolomic approaches unravel underlying RL-induced in wheat hemibiotrophic fungus Zymoseptoria...
Most phytophagous insect species exhibit a limited diet breadth and specialize on few or single host plant. In contrast, some display remarkably large breadth, with plants spanning several families many species. It is unclear, however, whether this phylogenetic generalism supported by generic metabolic use of common chemical compounds (‘metabolic generalism’) alternatively distinct uses diet-specific (‘multi-host specialism’)? Here, we simultaneously investigated the metabolomes fruit diets...
This study aimed to examine the ability of ulvan, a water-soluble polysaccharide from green seaweed Ulva fasciata , provide protection and induce resistance in wheat against hemibiotrophic fungus Zymoseptoria tritici . Matrix-assisted laser desorption/ionization-time-of-flight-mass spectrometry (MALDI-TOF-MS) analysis indicated that ulvan is mainly composed unsaturated monosaccharides (rhamnose, rhamnose-3-sulfate, xylose) numerous uronic acid residues. In greenhouse, foliar application at...
Fomitiporia mediterranea (Fmed) is one of the main fungal species found in grapevine wood rot, also called “amadou,” most typical symptoms trunk disease Esca. This fungus functionally classified as a white-rot, able to degrade all structure polymers, i.e., hemicelluloses, cellulose, and recalcitrant component, lignin. Specific enzymes are secreted by those components, namely carbohydrate active for hemicelluloses which can be highly specific given polysaccharide, peroxidases, enable...
The production of reactive oxygen species (ROS) is one the first defense reactions induced in arabidopsis response to infection by pectinolytic enterobacterium Dickeya dadantii. Previous results also suggest that abscisic acid (ABA) favors D. dadantii multiplication and spread into its hosts. Here, we confirm this hypothesis using ABA-deficient ABA-overproducer plants. We investigated relationships between ABA status ROS after showed modulates capacity plant produce decreasing class III...
Plant immunity induction with natural biocontrol compounds is a valuable and promising ecofriendly tool that fits sustainable agriculture healthy food. Despite the agroeconomic significance of wheat, mechanisms underlying its induced defense responses remain obscure. We reveal here, using combined transcriptomic, metabolomic cytologic approach, lipopeptide mycosubtilin from beneficial bacterium Bacillus subtilis, protects wheat against Zymoseptoria tritici through dual mode action (direct...
Blumeria graminis f. sp. tritici ( Bgt) is an obligate biotrophic fungal pathogen responsible for powdery mildew in bread wheat Triticum aestivum). Upon Bgt infection, the plant activates basal defense mechanisms, namely PAMP-triggered immunity, leaves during first few days. Understanding this early stage of quantitative resistance crucial developing new breeding tools and evaluating inducers sustainable agricultural practices. In sense, we used a combination transcriptomic metabolomic...
The success of virus transmission by vectors relies on intricate trophic interactions between three partners, the host plant, virus, and vector. Despite numerous studies that showed capacity plant viruses to manipulate their benefit, potentially transmission, molecular mechanisms sustaining this phenomenon has not yet been extensively analyzed at level. In study, we focused deregulations induced in Arabidopsis thaliana an aphid vector were alleviated when plants infected with turnip yellows...
Acylphenols from Myristica crassa were identified based on liquid chromatography high-resolution mass spectrometry and tandem (MS/MS) experiments. Two types of compound found in the extract plant: monomeric (malabaricone B C) dimeric compounds (C-C bonded biphenyl C-C phenyl-linear carbon chain). Evidence formation covalent ions during electrospray ionization matrix-assisted laser desorption (MALDI) processes was established. [2M-3H](-) detected spectra each high-performance separation. The...
<title>Abstract</title> <bold>Background:</bold> Hydrophilic compounds, such as amino-acids, organic acids and sugars among others, are present in large amounts plant cells. Analysis quantification of these major hydrophilic compounds is particularly relevant sciences since they greatly impact the quality plant-derived products plant-pathogen relationship. Our objective was to develop validate a complete analysis workflow combining microwave-assisted extraction (MAE) interaction liquid...