Dissertations / Theses on the topic 'Plantes – Cellules et tissus – Biotechnologie'
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Georges, Didier. "Approches biotechnologiques (cultures de tissus, cellules et protoplastes) pour l'accroissement de la variabilité génétique chez le chèvrefeuille (lonicera, caprifoliaceae)." Tours, 1994. http://www.theses.fr/1994TOUR3802.
Full textFlorin, Bruno. "Étude de différentes voies de conservation d'embryons, de tissus et de cellules de végétaux cultivés in vitro : applications de l'hypoxie et de la cryoconservation." Tours, 1989. http://www.theses.fr/1989TOUR3804.
Full textLongchamps, Louis. "Discrimination entre le maïs et les mauvaises herbes par la signature spectrale de fluorescence induite par UV." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23931/23931.pdf.
Full textAvallone, Sylvie. "Etude de la fermentation naturelle de "Coffea arabica L. " et des mécanismes de fluidification du tissu mucilagineux." Montpellier 2, 1999. http://www.theses.fr/1999MON20166.
Full textDaydé, Dominique. "Bioproduction et bioconversion de saponines triterpéniques par des tissus de gypsophile et de saponaire cultivés in vitro." Toulouse, INPT, 1990. http://www.theses.fr/1990INPT009A.
Full textPurbaningsih, Susiani. "Isolement et culture de protoplastes d'orchidées ("Phalaenipsis" et "Epidendrum") : implication de l'état vitreux des tissus et de l'éthylène." Montpellier 2, 1992. http://www.theses.fr/1992MON20280.
Full textGadzovska, Sonja. "Production de métabolites secondaires par les cultures de cellules et de tissus d'Hypericum perforatum L : effets de divers facteurs exogènes." Orléans, 2005. http://www.theses.fr/2005ORLE2005.
Full textJourdin, Sophie. "La culture des tissus végétaux, de la seconde moitié du XIXe siècle au XXe siècle." Paris 7, 2009. http://www.theses.fr/2009PA070061.
Full textThe history of the plant tissue culture in the second half of the XIXe century at the XXe century shows the evolution of many aspects of the evolution of plant biology and physiology, to understand how to control the vegetable parts, their needs and their capacity to survive isolated and in artificial conditions. Beyond an historical work on the development of these cultures - in the United States, in Germany and in France -the thesis is an epistemological study of the evolution of the representation of the theoretical conceptions on the potentialities of the cell and its limits. Moreover, this study insists on the very empirical character of the development of these experimental methods. We emphasize that the cultures are objects of study while being instruments of this research in biology; we study also the very close links with the physiology of the nutrition and the cellular division, implying the question of the vegetable hormones and engaging the concept of cell itself. This history being related to the genetics, biochemistry, cytology, and after the second world war, molecular biology, the study of the cellular cultures is an original problematic for studying the important transformations of contemporary biology
Benchabane, Meriem. "Modifications post-traductionnelles d'une serpine humaine recombinante exprimée chez les plantes." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24868/24868.pdf.
Full textMorin, Nathalie. "Les Microcodium : architecture, structure et composition, comparaison avec les racines calcifiées." Montpellier 2, 1993. http://www.theses.fr/1993MON20025.
Full textTrémouillaux-Guiller, Jocelyne. "Etude comparative des méthodologies de sélection de cultures cellulaires végétales à haute capacité d'accumulation : application à des souches et lignées clonales biosynthétisant des alcaloides dihydrofuoquinoleiques." Tours, 1988. http://www.theses.fr/1988TOUR3804.
Full textBenaben, Véronique. "Caractérisation cytologique et moléculaire du mutant symbiotique TE7 de Medicago truncatula." Toulouse 3, 1994. http://www.theses.fr/1994TOU30157.
Full textCicéron, Félix. "Caractérisation de la fucosyltransférase du xyloglucane d'Arabidopsis thaliana « AtFuT1 » : étude biochimique et structurale." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAV020/document.
Full textFucosyltransferases are enzymes that transfer a fucose residue from GDP-fucose on varied acceptors (oligosaccharides, proteins). In Human, these glycosyltransferases are involved in many biological and pathological processes. Numerous fucosyltransferase exist in the plant kingdom. Among them, FuT1 transfers a fucose linked in 1,2 onto a galactose of xyloglucan: a major hemicellulose of dicots cell wall. This branched polysaccharide is intensively studied because of its current and potential industrial applications in textile, food, pharmaceuticals, etc. The main objective of this PhD program was to obtain biochemical and structural information on the fucosyltransferase AtFuT1 from the model plant Arabidopsis thaliana. A recombinant form of this protein has therefore been produced, using the baculovirus/insect cell system. In order to get sufficient amount of protein for structural studies, a suspension cell culture method has been set-up in the lab. A two-step purification protocol, involving affinity and size exclusion chromatography was established. The active, and highly pure recovered protein was used to determine the biochemical properties of the protein towards its substrates (GDP-fucose and xyloglucan), to get protein crystals and hence to solve its 3D structure in complex with GDP and a xyloglucan derived oligosaccharide (2.2 Å resolution). AtFuT1 behaves in solution and in crystallo as a non-covalent dimer. The protein adopts a variant of the classical GTB fold. In addition, novel glycosyltransferase assay have been designed allowing the screening of numerous reaction conditions. Methods and techniques that were developed during this study should be a useful base for the characterization of other glycosyltransferase
Roche, Philippe. "Facteurs nod, signaux symbiotiques produits par la bactérie Rhizobium meliloti. Caractérisation, activités biologiques et bases moléculaires de la spécificité d'hôte : [thèse en partie soutenue sur un ensemble de travaux]." Toulouse 3, 1991. http://www.theses.fr/1991TOU30218.
Full textAtger, Claire. "Essai sur l'architecture racinaire des arbres." Montpellier 2, 1992. http://www.theses.fr/1992MON20100.
Full textFlandre, Frédéric. "Mise au point d'un système de régénération du pois (Pisum sativum L. ) par embryogenèse somatique." Amiens, 1994. http://www.theses.fr/1994AMIES013.
Full textMilesi, Sandrine. "Étude de la production de furocoumarines par la Rue officinale (Ruta graveolens L. ) : cultures de plantes au champ et cultures in vitro." Vandoeuvre-les-Nancy, INPL, 2001. http://docnum.univ-lorraine.fr/public/INPL_T_2001_MILESI_S.pdf.
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