Liste des publications scientifiques

Deciphering the route of Ralstonia solanacearum colonization in Arabidopsis thaliana roots during a compatible interaction: focus at the plant cell wall

01/11/2012 00:00
Catherine Digonnet, Yves Martinez, Nicolas Denancé, Marine Chasseray, Patrick Dabos, Philippe Ranocha, Yves Marco, Alain Jauneau, Deborah Goffner   Résumé: The compatible interaction between the model plant, Arabidopsis thaliana, and the GMI1000 strain of the phytopathogenic bacterium, Ralstonia solanacearum, was investigated in an in vitro pathosystem. We describe the progression of the bacteria in the root from penetration at the root surface to the xylem vessels and the cell...

Eleven microsatellite markers for the mountain clover Trifolium montanum (Fabaceae)

29/10/2012 00:00
Matter P, Määttänen K, Kettle CJ, Ghazoul J, Pluess AR   Résumé: Microsatellite markers were developed in Trifolium montanum to investigate pollen dispersal patterns at landscape scale with a pollen-pool analysis (indirect parentage analysis) as well as in an experimental set-up with a direct paternity analysis. Screening 46 microsatellites developed for T. repens yielded four markers usable in T. montanum. Seven additional ones have been developed specifically for the target species using...

Medicago truncatula ERN Transcription Factors: Regulatory Interplay with NSP1/NSP2 GRAS Factors and Expression Dynamics throughout Rhizobial Infection

17/10/2012 00:00
Marion R. Cerri, Lisa Frances, Tom Laloum, Marie-Christine Auriac, Andreas Niebel, Giles E.D. Oldroyd, David G. Barker, Joëlle Fournier and Fernanda de Carvalho-Niebel   Résumé: Rhizobial nodulation factors (NFs) activate a specific signaling pathway in Medicago truncatula root hairs that involves the complex interplay of Nodulation Signaling Pathway1 (NSP1)/NSP2 GRAS and Ethylene Response Factor Required for Nodulation1 (ERN1) transcription factors (TFs) to achieve full ENOD11...

Caractérisation de la famille multigénique des Aux/IAA, étude fonctionnelle du gène Sl-IAA27

15/10/2012 00:00
Carole Bassa   Résumé: Au cours du développement des plantes, l'auxine contrôle de nombreux processus dont notamment la dominance apicale, le phototropisme, la phyllotaxie, la formation des racines latérales et le développement des fruits. Le métabolisme, la perception ainsi que la signalisation de l’auxine ont majoritairement été étudiés chez Arabidopsis. Afin d’élucider la fonction de cette hormone au cours du développement des fruits, nous avons utilisé la tomate comme plante modèle. En...

How membranes shape plant symbioses: signaling and transport in nodulation and arbuscular mycorrhiza

05/10/2012 00:00
Laure Bapaume and Didier Reinhardt   Résumé: As sessile organisms that cannot evade adverse environmental conditions, plants have evolved various adaptive strategies to cope with environmental stresses. One of the most successful adaptations is the formation of symbiotic associations with beneficial microbes. In these mutualistic interactions the partners exchange essential nutrients and improve their resistance to biotic and abiotic stresses. In arbuscular mycorrhiza (AM) and in root...

Eight microsatellite markers for the bulbous buttercup Ranunculus bulbosus (Ranunculaceae)

28/09/2012 00:00
Matter P, Pluess AR, Ghazoul J, Kettle CJ.   Résumé: Pollen dispersal is a key biological process enabling plant populations to maintain genetic connectivity. Direct estimates of pollen dispersal using paternity assignment or correlated paternity estimates require highly variable genetic markers, of which microsatellites are the markers of choice. Eight species-specific microsatellites have been developed for Ranunculus bulbosus, combining classical enrichment methods with 454 sequencing....

Evaluating contemporary pollen dispersal in two common grassland species Ranunculus bulbosus L. (Ranunculaceae) and Trifolium montanum L. (Fabaceae) using an experimental approach

28/09/2012 00:00
P. Matter, C. J. Kettle, J. Ghazoul, T. Hahn and A. R. Pluess   Résumé: Pollen flow is a key biological process that connects plant populations, preventing genetic impoverishment and inbreeding. Pollen-mediated long-distance dispersal (LDD) events are especially important for plant species in increasingly fragmented landscapes. Patterns of pollen dispersal were directly estimated and dispersal kernels modelled in an experimental population of Ranunculus bulbosus and Trifolium montanum to...

What the genomics of arbuscular mycorrhizal symbiosis teaches us about root development

25/09/2012 00:00
Damien Formey, Cyril Jourda, Christophe Roux, Pierre‐Marc Delaux   Résumé: This chapter covers the genetics and genomics aspects of arbuscular mycorrhiza (AM)-plant symbiosis. Forward and reverse genetics studies, and transcriptomic and metabolic analyses of AM-legume symbiosis and root development associated with this interaction are summarized.   Livre: Root genomics and soil interactions   Lien: Chapitre d'ouvrage

Comparative expression of cell wall related genes in four maize RILs and one parental line of variable lignin content and cell wall degradability

10/09/2012 00:00
Audrey Courtial, Cyril Jourda, Sandrine Arribat, Stéphanie Huguet, Matthieu Reymond, Jacqueline Grima-Pettenati, Yves Barrière Résumé: A comparison of gene expression in maize between the parental line F271 and four RILs derived from the cross F288 x F271 was investigated based on hybridization on the 17,555 probes Affymetrix micro-array, targeting nearly one third of the genes present in maize genomes. The parental line had unfavorable alleles for cell wall degradability traits at the...

CML9, a multifunctional Arabidopsis thaliana calmodulin-like protein involved in stress responses and plant growth?

01/09/2012 00:00
Louis-Jérôme Leba, Alexandre Perochon, Cécilia Cheval, Benoit Ranty, Jean-Philippe Galaud and Didier Aldon   Résumé: Plants have evolved complex signaling networks to respond to their fluctuating environment and adapt their growth and development. Calcium-dependent signaling pathways play key role in the onset of these adaptive responses. In plant cells, the intracellular calcium transients are triggered by numerous stimuli and it is supposed that the large repertory of calcium sensors...
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