Liste des publications scientifiques

High-density genome-wide association mapping implicates an F-box encoding gene in Medicago truncatula resistance to Aphanomyces euteiches

28/11/2013 00:00
Maxime Bonhomme, Olivier André, Yacine Badis, Joëlle Ronfort, Concetta Burgarella, Nathalie Chantret, Jean-Marie Prosperi, Roman Briskine, Joann Mudge, Frédéric Debéllé, Hélène Navier, Henri Miteul, Ahmed Hajri, Alain Baranger, Peter Tiffin, Bernard Dumas,, Marie-Laure Pilet-Nayel, Nevin D. Young and Christophe Jacquet   Résumé: The use of quantitative disease resistance (QDR) is a promising strategy for promoting durable resistance to plant pathogens, but genes involved in QDR are...

Domain wise docking analyses of the modular chitin binding protein CBP50 from Bacillus thuringiensis serovar konkukian S4

11/11/2013 00:00
Ujala Sehar, Muhammad Aamer Mehmood, Khadim Hussain, Salman Nawaz, Shahid Nadeem, Muhammad Hussnain Siddique, Habibullah Nadeem, Munazza Gull, Niaz Ahmad, Iqra Sohail, Saba Shahid Gill and Summera Majeed   Résumé: This paper presents an in silico characterization of the chitin binding protein CBP50 from B. thuringiensis serovar konkukian S4 through homology modeling and molecular docking. The CBP50 has shown a modular structure containing an N-terminal CBM33 domain, two consecutive...

Investigation of glycosyltransferases from oat

31/10/2013 00:00
Thomas Louveau   Résumé: Plants produce a diversity of secondary metabolites crucial for their survival into specific ecological niches. Many of these compounds are glycosides generated by the action of family one UDP-dependant glycosyltransferases (UGTs). Glycosylated products of UGTs are known to be essential for reproductive fitness, defence against pathogens, and signalling; UGTs also have a role in the detoxification of xenobiotics. To date, little is known about monocot UGTs compare...

Contribution d'une "Calmodulin-like protein" CML9, et d'un facteur de transcription de type GARP PRR2, à la mise en place des réactions de défense chez arabidopsis thaliana

30/10/2013 00:00
Cécilia Cheval   Résumé:     Revue: Thèse de l'Université de Toulouse   Lien: thesesups.ups-tlse.fr/2271/1/2013TOU30309.pdf  

High phosphate reduces host ability to develop arbuscular mycorrhizal symbiosis without affecting root calcium spiking responses to the fungus

29/10/2013 00:00
Coline Balzergue, Mireille Chabaud, David G. Barker, Guillaume Bécard and Soizic F. Rochange   Résumé: The arbuscular mycorrhizal symbiosis associates soil fungi with the roots of the majority of plants species and represents a major source of soil phosphorus acquisition. Mycorrhizal interactions begin with an exchange of molecular signals between the two partners. A root signaling pathway is recruited, for which the perception of fungal signals triggers oscillations of intracellular...

Hrp mutant bacteria as biocontrol agents: Toward a sustainable approach in the fight against plant pathogenic bacteria

01/10/2013 00:00
Mathieu Hanemian, Binbin Zhou, Laurent Deslandes, Yves Marco and Dominique Trémousaygue   Résumé: Sustainable agriculture necessitates development of environmentally safe methods to protect plants against pathogens. Among these methods, application of biocontrol agents has been efficiently used to minimize disease development. Here we review current understanding of mechanisms involved in biocontrol of the main Gram-phytopathogenic bacteria-induced diseases by plant inoculation with...

Sl-IAA27 gene expression is induced during arbuscular mycorrhizal symbiosis in tomato and in Medicago truncatula

01/10/2013 00:00
Carole Bassa, Mohammad Etemadi, Jean-Philippe Combier, Mondher Bouzayen, Corinne Audran-Delalande   Abstract: Aux/IAA genes play a pivotal role in auxin transcriptional regulation. Their functions were mainly studied in Arabidopsis through analysis of gain-of-function mutants. In the tomato, the Solanaceae reference species, different studies on Sl-IAA down-regulated lines showed specific role for Sl-IAA genes. Our recent work revealed that the Sl-IAA27 gene displays a distinct behavior...

Les protéines 14-3-3 et leurs cibles dans la voie de signalisation conduisant à la mort cellulaire programmée en réponses aux sphingolipides : régulation par le calcium

30/09/2013 00:00
Prigent Elsa   Résumé: En réponse aux attaques des plantes par des pathogènes, les bases à longues chaînes (LCBs) précurseurs des sphingolipides, participent à la mise en place d'une mort cellulaire programmée (PCD) chez les végétaux. Dans ce cadre, l'objectif du travail de thèse a été de caractériser cette voie de signalisation peu connue à ce jour. Ainsi, chez Arabidopsis thaliana, la régulation par les LCBs et le calcium d'une protéine kinase calcium-dépendante (CPK3) et des protéines...

Cooperative control of holliday junction resolution and DNA repair by the SLX1 and MUS81-EME1 nucleases

26/09/2013 00:00
Castor D, Nair N, Déclais AC, Lachaud C, Toth R, Macartney TJ, Lilley DM, Arthur JS, Rouse J   Résumé: Holliday junctions (HJs) are X-shaped DNA structures that arise during homologous recombination, which must be removed to enable chromosome segregation. The SLX1 and MUS81-EME1 nucleases can both process HJs in vitro, and they bind in close proximity on the SLX4 scaffold, hinting at possible cooperation. However, the cellular roles of mammalian SLX1 are not yet known. Here, we use...

Aphanomyces euteiches Cell Wall Fractions Containing Novel Glucan-Chitosaccharides Induce Defense Genes and Nuclear Calcium Oscillations in the Plant Host Medicago truncatula

23/09/2013 00:00
Amaury Nars, Claude Lafitte, Mireille Chabaud, Sophie Drouillard, Hugo Mélida, Saïda Danoun, Tinaig Le Costaouëc, Thomas Rey, Julie Benedetti, Vincent Bulone, David George Barker, Jean-Jacques Bono, Bernard Dumas, Christophe Jacquet, Laurent Heux, Judith Fliegmann and Arnaud Bottin   Résumé: N-acetylglucosamine-based saccharides (chitosaccharides) are components of microbial cell walls and act as molecular signals during host-microbe interactions. In the legume plant Medicago truncatula,...
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