Archive des articles :: scientist-publications

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...

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,...

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...

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...

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...

Etude fonctionelle des enzymes RNaseIII chez les plantes

23/09/2013 00:00

Nahid Shamandi Résumé: Chez la majorité des eucaryotes, les petits ARN (miRNA et siRNA) jouent des rôles essentiels au cours du développement, dans les réponses adaptatives aux stress, et dans la maintenance de la stabilité génétique. Les plantes codent quatre enzymes RNaseIII de type...

The amidohydrolases IAR3 and ILL6 contribute to jasmonoyl-isoleucine hormone turnover and generate 12-hydroxyjasmonic acid upon wounding in Arabidopsis leaves

19/09/2013 00:00

Widemann E, Miesch L, Lugan R, Holder E, Heinrich C, Aubert Y, Miesch M, Pinot F, Heitz T. Résumé: Jasmonates (JAs) are a class of signaling compounds that mediate complex developmental and adaptative responses in plants. JAs derive from jasmonic acid (JA) through various enzymatic...

Predicting promoters targeted by TAL effectors in plant genomes: from dream to reality

03/09/2013 00:00

Laurent D Noël, Nicolas Denancé, Boris Szurek Résumé: Transcription Activator-Like (TAL) effectors from the plant pathogenic bacteria of the genus Xanthomonas are molecular weapons injected into eukaryotic cells to modulate the host transcriptome. Upon delivery, TAL effectors localize into...

Visualization of grapevine root colonization by the Saharan soil isolate Saccharothrix algeriensis NRRL B-24137 using DOPE-FISH microscopy

01/09/2013 00:00

Stéphane Compant, Saima Muzammil, Ahmed Lebrihi and Florence Mathieu Résumé: There is currently a gap of knowledge regarding whether some beneficial bacteria isolated from desert soils can colonize epi- and endophytically plants of temperate regions. In this study, the early steps of the...

A one-pot enzymatic approach to the O-fluoroglucoside of N-methylanthranilate

15/08/2013 00:00

Lorenzo Caputi, Martin Rejzek, Thomas Louveau, Ellis C. O’Neill, Lionel Hill, Anne Osbourn and Robert A. Field Résumé: In connection with prospective 18F-PET imaging studies, the potential for enzymatic synthesis of fluorine-labelled glycosides of small molecules was investigated. Approaches...