Archive des articles :: scientist-publications

Control of NO level in rhizobium-legume root nodules: Not only a plant globin story

14/08/2013 00:00

Eliane Meilhoc, Pauline Blanquet, Yvan Cam and Claude Bruand Résumé: Nitric oxide (NO) is a gaseous signaling molecule which plays both regulatory and defense roles in animals and plants. In the symbiosis between legumes and rhizobia, NO has been shown to be involved in bacterial infection...

Use of beneficial bacteria and their secondary metabolites to control grapevine pathogen diseases

01/08/2013 00:00

Stéphane Compant, Günter Brader, Saima Muzammil, Angela Sessitsch, Ahmed Lebrihi, Florence Mathieu Résumé: Grapevine is one of the most important economic crops yielding berries, wine products as well as derivates. However, due to the large array of pathogens inducing diseases on this plant,...

A conserved rubredoxin is necessary for photosystem II accumulation in diverse oxygenic photoautotrophs

30/07/2013 00:00

Calderon RH, García-Cerdán JG, Malnoë A, Cook R, Russell JJ, Gaw C, Dent RM, de Vitry C, Niyogi KK. Résumé: In oxygenic photosynthesis, two photosystems work in tandem to harvest light energy and generate NADPH and ATP. Photosystem II (PSII), the protein-pigment complex that uses light...

Pathogen-associated molecular pattern-triggered immunity and resistance to the root pathogen Phytophthora parasitica in Arabidopsis

12/07/2013 00:00

Mathieu Larroque, Elodie Belmas, Thomas Martinez, Sophie Vergnes, Nathalie Ladouce, Claude Lafitte, Elodie Gaulin and Bernard Dumas Résumé: The cellulose binding elicitor lectin (CBEL) of the genus Phytophthora induces necrosis and immune responses in several plant species, including...

Post mortem function of AtMC9 in xylem vessel elements

08/07/2013 00:00

Benjamin Bollhöner, Bo Zhang, Simon Stael, Nicolas Denancé, Kirk Overmyer, Deborah Goffner, Frank Van Breusegem, Hannele Tuominen Résumé: Cell death of xylem elements is manifested by rupture of the tonoplast and subsequent autolysis of the cellular contents. Metacaspases have been...

Calcium/calmodulin-mediated regulation of plant immunity

01/07/2013 00:00

Cécilia Cheval, Didier Aldon, Jean-Philippe Galaud and Benoît Ranty Résumé: Calcium is a universal messenger involved in the modulation of diverse developmental and adaptive processes in response to various physiological stimuli. Ca2 + signals are represented by stimulus-specific...

Lipo-chitooligosaccharidic symbiotic signals are recognized by LysM receptor-like kinase LYR3 in the legume Medicago truncatula

28/06/2013 00:00

Fliegmann J, Canova S, Lachaud C, Uhlenbroich S, Gasciolli V, Pichereaux C, Rossignol M, Rosenberg C, Cumener M, Pitorre D, Lefebvre B, Gough C, Samain E, Fort S, Driguez H, Vauzeilles B, Beau JM, Nurisso A, Imberty A, Cullimore J, Bono JJ. Résumé: While chitooligosaccharides (COs) derived...

Interactions of beneficial and detrimental root-colonizing filamentous microbes with plant hosts.

25/06/2013 00:00

Thomas Rey and Sebastian Schornack Résumé: Understanding commonalities and differences of how symbiotic and parasitic microbes interact with plants will improve advantageous interactions and allow pathogen control strategies in crops. Recently established systems enable studies of root...

Disease resistance or growth: the role of plant hormones in balancing immune responses and fitness costs

24/05/2013 00:00

Nicolas Denancé, Andrea Sánchez-Vallet, Deborah Goffner, Antonio Molina Résumé: Plant growth and response to environmental cues are largely governed by phytohormones. The plant hormones ethylene, jasmonic acid, and salicylic acid (SA) play a central role in the regulation of plant immune...

Transpirational demand affects aquaporin expression in poplar roots

18/04/2013 00:00

Joan Laur and Uwe G. Hacke Résumé: Isohydric plants tend to maintain a water potential homeostasis primarily by controlling water loss via stomatal conductance. However, there is accumulating evidence that plants can also modulate water uptake in a dynamic manner. The dynamics of water...