A5060058047- Plant-Microbe Interactions and Immunity
- Plant Molecular Biology Research
- Plant Parasitism and Resistance
- Plant Gene Expression Analysis
- Legume Nitrogen Fixing Symbiosis
- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Photosynthetic Processes and Mechanisms
- Plant and animal studies
- Lignin and Wood Chemistry
- Plant Reproductive Biology
- Plant Pathogenic Bacteria Studies
- Plant responses to water stress
- Chromosomal and Genetic Variations
- Enzyme-mediated dye degradation
- Plant nutrient uptake and metabolism
- Horticultural and Viticultural Research
- Soybean genetics and cultivation
- Chemical synthesis and alkaloids
- Plant Virus Research Studies
- Seed Germination and Physiology
- Insect-Plant Interactions and Control
- Plant Physiology and Cultivation Studies
- Garlic and Onion Studies
- Plant pathogens and resistance mechanisms
University of Lausanne
2016-2024
Max Planck Institute for Plant Breeding Research
2022-2024
Plants grown in natural soil are colonized by phylogenetically structured communities of microbes known as the microbiota. Individual can activate microbe-associated molecular pattern (MAMP)-triggered immunity (MTI), which limits pathogen proliferation but curtails plant growth, a phenomenon growth-defence trade-off. Here, we report that, monoassociations, 41% (62 out 151) taxonomically diverse root bacterial commensals suppress Arabidopsis thaliana growth inhibition (RGI) triggered...
Significance Lignin is a defining polymer of vascular plants and great physiological, ecological, economical importance. Yet, its polymerization in the cell wall still not understood. polymerizing enzymes, laccases peroxidases, exist vast numbers plant genomes. By focusing on specific lignin structure, ring-like Casparian strips (CSs), we reduced candidate abolished essentially all with detectable endodermal expression. even slight defects CS formation were detected. contrast, quintuple...
Plants restrict immune responses to vulnerable root parts. Spatially restricted are thought be necessary avoid constitutive rhizosphere microbiota. To directly demonstrate the importance of spatially responses, we expressed plant flagellin receptor (FLS2) in different tissues, combined with fluorescent defense markers for readouts at cellular resolution. Our analysis distinguishes appearing cell autonomous from apparently non-cell-autonomous responses. It reveals lignification as a general...
Arabidopsis (Arabidopsis thaliana) plants recognize insect eggs and activate the salicylic acid (SA) pathway. As a consequence, expression of defense genes regulated by jasmonic (JA) pathway is suppressed larval performance enhanced. Cross talk between signaling pathways common in plant-pathogen interactions, but molecular mechanism mediating this phenomenon poorly understood. Here, we demonstrate that egg-induced SA/JA antagonism works independently APETALA2/ETHYLENE RESPONSE FACTOR...
Abstract Different patterns of lignified cell walls are associated with diverse functions in a variety plant tissues. These rely on the stiffness and hydrophobicity that lignin polymers impart to wall. The precise pattern subcellular deposition is critical for structure–function relationship each type. Here, we describe role xylem vessels as water pipes, Casparian strips apoplastic barriers, asymmetrically endocarp b cells exploding seed pods. We highlight similarities differences genetic...
Summary Strigolactones (SLs) are carotenoid‐derived phytohormones shaping plant architecture and inducing the symbiosis with endomycorrhizal fungi. In Petunia hybrida , SL transport within towards rhizosphere is driven by ABCG ‐class protein PDR 1. 1 expression regulated soil phosphate abundance, thus integrates development nutrient conditions. We overexpressed ( OE ) to investigate whether increased endogenous sufficient improve nutrition productivity. Phosphorus quantification...
Summary Amphicarpy is an unusual trait where two fruit types develop on the same plant: one above and other belowground. This not found in conventional model species. Therefore, its development molecular genetics remain under‐studied. Here, we establish allooctoploid Cardamine chenopodiifolia as emerging experimental system to study amphicarpy. We characterized C. development, focusing differences morphology cell wall histochemistry between above‐ belowground fruit. generated a reference...
Summary The timely removal of end‐of‐purpose flowering organs is as essential for reproduction and plant survival flowering. Despite much progress in understanding the molecular mechanisms floral organ abscission, little known about how various environmental factors are integrated into developmental programmes that determine timing abscission. Here, we investigated whether reactive oxygen species (ROS), mediators stress‐related signalling pathways, involved determining abscission and, if so,...
Abstract Background Cardamine chenopodiifolia is an amphicarpic plant that develops two fruit morphs, one above and the other below ground. Above-ground disperse their seeds by explosive coiling of valves, while below-ground are non-explosive. Amphicarpy a rare trait associated with polyploidy in C. . Studies into development evolution this currently limited absence genomic data for Results We produced chromosome-scale assembly octoploid genome using high-fidelity long read sequencing...
Summary To respond appropriately to diverse stimuli, cells harbour numerous receptor pathways yet share downstream signalling components. Mitogen-Activated Protein Kinase (MPK) cascades, present in all eukaryotes, act as central hubs shared amongst pathways. How specificity is maintained within a single plant cell-type not well understood. We engineered genetic background for direct comparisons of developmental and an immunity pathway the Arabidopsis root endodermis. show two maintain...
ABSTRACT The invention of lignin has been at the heart plants’ capacity to colonize land, allowing them grow tall, transport water within their bodies and protect themselves against various stresses. Consequently, this polyphenolic polymer, that impregnates cellulosic plant cell walls, now represents second most abundant polymer on Earth, after cellulose itself. Yet, despite its great physiological, ecological economical importance, our knowledge biosynthesis in vivo , especially crucial...
Abstract Asymptomatic plants grown in natural soil are colonized by phylogenetically structured communities of microbes known as the microbiota. Individual can activate microbe-associated molecular pattern (MAMP)-triggered immunity (MTI), which limits pathogen proliferation but curtails plant growth, a phenomenon growth-defense trade-off. We report that mono-associations, 41% (62/151) taxonomically diverse root bacterial commensals suppress Arabidopsis thaliana growth inhibition (RGI)...
Summary Plants circumscribe microbe-associated molecular pattern (MAMP)-triggered immune responses to weak points of the roots. This spatially restricted immunity was suggested avoid constitutive rhizosphere microbiota. To demonstrate its relevance, we combined cell-type specific expression plant flagellin receptor (FLS2) with fluorescent defence markers and mapped competency at cellular resolution. Our analysis distinguishes cell-autonomous non-cell autonomous reveals lignification be...
Summary Amphicarpy is an unusual trait where two fruit types develop: one above and the other below ground. This not found in conventional model species, therefore, its development molecular genetics remain under-studied. Here, we establish Cardamine chenopodiifolia as emerging experimental system to study amphicarpy. We characterized of C. , focusing on differences morphology cell wall histochemistry between above- below-ground fruit. generated a reference transcriptome using PacBio...
is an amphicarpic plant in the Brassicaceae family. Plants develop two fruit types, one above and another below ground. This rare trait associated with octoploidy
ABSTRACT Reactive oxygen species (ROS) play essential roles as a second messenger in various physiological processes plants. Due to their oxidative nature, ROS can also be harmful. Thus, the generation and homeostasis of are tightly controlled by multiple enzymes. Membrane-localized NADPH oxidases well known generate during developmental stress responses, but metabolic pathways superoxide (O2· − ) generated them apoplast poorly understood, identity apoplastic dismutase (SOD) is unknown...