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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

10/30/2013 00:00

Cécilia Cheval Summary: Journal: Thesis of the University of Toulouse Link: 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

10/29/2013 00:00

Coline Balzergue, Mireille Chabaud, David G. Barker, Guillaume Bécard and Soizic F. Rochange Abstract: 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...

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

10/01/2013 00:00

Mathieu Hanemian, Binbin Zhou, Laurent Deslandes, Yves Marco and Dominique Trémousaygue Abstract: 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

10/01/2013 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

09/30/2013 00:00

Prigent Elsa Abstract: 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

09/26/2013 00:00

Castor D, Nair N, Déclais AC, Lachaud C, Toth R, Macartney TJ, Lilley DM, Arthur JS, Rouse J Abstract: 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...

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

09/23/2013 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...

Functional analysis of plant RNaseIII enzymes

09/23/2013 00:00

Nahid Shamandi Abstract: Small RNAs, including miRNA and siRNA, play essential regulatory roles in genome stability, development and stress responses in most eukaryotes. Plants encode four DICER-LIKE (DCL) RNaseIII enzymes. DCL1 produces miRNAs, while DCL2, DCL3 and DCL4 produce diverse size...

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

09/19/2013 00:00

Widemann E, Miesch L, Lugan R, Holder E, Heinrich C, Aubert Y, Miesch M, Pinot F, Heitz T. Abstract: 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

09/03/2013 00:00

Laurent D Noël, Nicolas Denancé, Boris Szurek Abstract: 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...

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