Search results for "BIOLOGIE"

showing 10 items of 256 documents

Asymétrie de la membrane plasmique végétale : caractérisation et rôle dans la signalisation immunitaire des plantes

2021

National audience; La membrane plasmique (MP) forme une barrière sélective entre la cellule et le milieu extérieur.C’est un senseur des modifications environnementales et une plateforme orchestrant latransduction du signal permettant de déployer une réponse adaptée. Elle joue donc un rôleessentiel dans la physiologie cellulaire. Décrypter les bases moléculaires de l’organisation dela MP apparaît donc nécessaire pour comprendre comment les plantes s’adaptent auxmodifications environnementales. La MP est une bicouche de lipides à laquelle des protéinessont associées, et les données accumulées sur ce modèle ont révélé son organisation complexeet dynamique et le rôle essentiel joué par les lipi…

[SDV] Life Sciences [q-bio]signalisation immunitairebiophysique[SDV]Life Sciences [q-bio]organisation membranairebiologie cellulaire végétalemembrane plasmique
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Démarches de biologie intégrative pour la compréhension des flux de carbone, azote et eau dans la plante

2021

Les démarches de biologie intégrative, qui ont constitué le fil rouge de l’ensemble de mes travaux de recherche ont été abordées au sein de deux Axes Thématiques principaux : un axe concernant la qualité des produits récoltés et un axe concernant la valorisation des interactions plante-microorganismes favorisant le prélèvement des ressources azotées en conditions hydriques fluctuantes. C’est sur ce dernier axe que je travaille depuis mon recrutement en tant que Chargée de Recherche au sein de l’UMR Agroécologie. Cette approche de biologie intégrative (multi-disciplinaire et multi-échelle) me permet de hiérarchiser les processus écophysiologiques, métaboliques et moléculaires qui pourront êt…

[SDV] Life Sciences [q-bio]water stressarchitecture racinaire[SDV]Life Sciences [q-bio]legume x microorganism interactionbiologie intégrativeintegrative biologyinteraction légumineuse x microorganismesstress hydriqueroot architecturestress hydrique 3-Composition de Jury :resiliencerésilience
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Discovering lactic acid bacteria by genomics

2002

International audience; This review summarizes a collection of lactic acid bacteria that are now undergoing genomic sequencing and analysis. Summaries are presented on twenty different species, with each overview discussing the organisms fundamental and practical significance, environmental habitat, and its role in fermentation, bioprocessing, or probiotics. For those projects where genome sequence data were available by March 2002, summaries include a listing of key statistics and interesting genomic features. These efforts will revolutionize our molecular view of Gram-positive bacteria, as up to 15 genomes from the low GC content lactic acid bacteria are expected to be available in the pu…

[SDV]Life Sciences [q-bio]Microbiology03 medical and health sciencesMicrobiologieLactococcusLactic acid bacteriagenomicsBrevibacteriumPediococcusOenococcusVLAG030304 developmental biology2. Zero hunger0303 health sciences[ SDV ] Life Sciences [q-bio]030306 microbiologyfoodPropionibacteriumStreptococcushealthGenomics15. Life on landGram-positive bacteriaLactococcus lactis[SDV] Life Sciences [q-bio]lactic acid bacterialactic acid bacteriagenomicsLactobacillusFoodHealthFermentationBifidobacteriumLeuconostoc
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New molecular aspects of regulation of mitochondrial activity by fenofibrate and fasting

2000

Abstract Fenofibrate and fasting are known to regulate several genes involved in lipid metabolism in a similar way. In this study measuring several mitochondrial enzyme activities, we demonstrate that, in contrast to citrate synthase and complex II, cytochrome c oxidase (COX) is a specific target of these two treatments. In mouse liver organelles, Western blot experiments indicated that mitochondrial levels of p43, a mitochondrial T3 receptor, and mitochondrial peroxisome proliferator activated receptor (mt-PPAR), previously described as a dimeric partner of p43 in the organelle, are increased by both fenofibrate and fasting. In addition, in PPARα-deficient mice, this influence was abolishe…

[SDV]Life Sciences [q-bio]Receptors Cytoplasmic and NuclearPeroxisome proliferator-activated receptorMitochondria LiverMitochondrionBiochemistryMice0302 clinical medicineFenofibrateStructural BiologyBIOLOGIE CELLULAIRECitrate synthaseFibrateReceptorComputingMilieux_MISCELLANEOUSMice Knockoutchemistry.chemical_classification0303 health sciencesFenofibratebiologyElectron Transport Complex IIFastingPeroxisomeDNA-Binding ProteinsSuccinate Dehydrogenase[SDV] Life Sciences [q-bio]OxidoreductasesDimerizationmedicine.drugPeroxisome proliferator activated receptormedicine.medical_specialtyBiophysicsCitrate (si)-Synthase[INFO] Computer Science [cs]Mitochondrial T3 receptorElectron Transport Complex IV03 medical and health sciencesMultienzyme ComplexesInternal medicineGeneticsmedicineAnimalsCytochrome c oxidase[INFO]Computer Science [cs]MitochondrionMolecular BiologyCrosses Genetic030304 developmental biologyOrganellesLipid metabolismCell BiologyMice Inbred C57BLEndocrinologychemistrybiology.protein030217 neurology & neurosurgeryTranscription Factors
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Un évolutionniste bernardien à l'Institut Pasteur? Morphologie des Ciliés et évolution physiologique dans l'œuvre d'André Lwoff

1991

[SHS.HISPHILSO]Humanities and Social Sciences/History Philosophy and Sociology of Sciences[SHS.HISPHILSO] Humanities and Social Sciences/History Philosophy and Sociology of Sciencesphilosophie de la biologie[ SHS.HISPHILSO ] Humanities and Social Sciences/History Philosophy and Sociology of Sciences
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Le paradigme de la filiation

1995

[SHS.HISPHILSO]Humanities and Social Sciences/History Philosophy and Sociology of Sciences[SHS.HISPHILSO] Humanities and Social Sciences/History Philosophy and Sociology of Sciencesphilosophie de la biologie[ SHS.HISPHILSO ] Humanities and Social Sciences/History Philosophy and Sociology of Sciences
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Un objet singulier dans la philosophie biologique bernardienne : l'hérédité

1991

Actes du Colloque te nu à Saint-Julien-en-Beaujolais en décembre 1989

[SHS.HISPHILSO]Humanities and Social Sciences/History Philosophy and Sociology of Sciences[SHS.HISPHILSO] Humanities and Social Sciences/History Philosophy and Sociology of Sciencesphilosophie de la biologie[ SHS.HISPHILSO ] Humanities and Social Sciences/History Philosophy and Sociology of Sciences
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Enseigner la bio-éthique? Réflexions d'un philosophe sur une espèce hybride

1996

[SHS.HISPHILSO]Humanities and Social Sciences/History Philosophy and Sociology of Sciencesbiologie[SHS.HISPHILSO] Humanities and Social Sciences/History Philosophy and Sociology of Scienceséthique[ SHS.HISPHILSO ] Humanities and Social Sciences/History Philosophy and Sociology of Sciences
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Immobilization of single-stranded DNA fragments to solid surfaces and their repeatable specific hybridization : covalent binding or adsorption ?

2004

Abstract The different steps of the immobilization process of single-stranded DNA (ssDNA) on surfaces by means of chemical grafting have been investigated using systematic measurements of grafting and hybridization densities by means of radioactive labelling. The immobilization by chemical grafting to a dense monomolecular layer of N-hydroxysuccinimidyl ester reactive functions attached to silica plates was performed from a dilute solution of amino-terminated oligonucleotides (10 μmol/l). The slow evaporation of the solvent allowed to increase the DNA grafting density by a factor of 10. A precise control of the rinsing process that followed the immobilization reaction allowed the discrimina…

[SPI.OTHER]Engineering Sciences [physics]/Other[SDV]Life Sciences [q-bio]Inorganic chemistry02 engineering and technology010402 general chemistry01 natural scienceschemistry.chemical_compoundAdsorptionMaterials ChemistryOrganic chemistryElectrical and Electronic EngineeringInstrumentationComputingMilieux_MISCELLANEOUSOligonucleotide[SPI.OTHER] Engineering Sciences [physics]/OtherMetals and Alloys[CHIM.MATE]Chemical Sciences/Material chemistryBIOLOGIE MOLECULAIRE021001 nanoscience & nanotechnologyCondensed Matter PhysicsGraftingEvaporation (deposition)0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSolvent[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry[CHIM.POLY]Chemical Sciences/Polymers[SDV.SP.PG]Life Sciences [q-bio]/Pharmaceutical sciences/Galenic pharmacologychemistryCovalent bond0210 nano-technologyLayer (electronics)DNA
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Rôle de la sphère orale

2013

National audience

alimentation[SDV.AEN] Life Sciences [q-bio]/Food and Nutritionnutritiondiététique[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutritionmicrobiologiesanté[SDV.AEN]Life Sciences [q-bio]/Food and NutritionComputingMilieux_MISCELLANEOUS
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