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Dernière mise à jour : Mai 2018

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The joint SymbiFix meeting and 4th meeting on Molecular Mechanisms in Nitrogen-Fixing Root Endosymbioses, 29-30 October 2015

The joint SymbiFix meeting and 4th meeting on Molecular Mechanisms in Nitrogen-Fixing Root Endosymbioses will be held in Nice, 29-30 October 2015

Program - 4th Meeting on Molecular Mechanism in Nitrogen Fixing Root Endosymbioses

See Situation map >>>

Talks of 20 minutes (15 min. presentation + 5 min. questions)

Thursday 29th October

12:00

Welcome lunch in Parc Valrose (salle des actes - salle à manger)

13:45

Meeting introduction: Pierre Frendo and Renaud Brouquisse (théâtre)

Session 1. Early signalling and infection

Chairperson: Catherine Masson and Julie Cullimore

14:00-14:20

Jean-Jacques Bono (LIPM, Toulouse). "Structure-function studies of Medicago truncatula LysM-RLKs in symbiotic signal perception”

14:20-14:40

Hassen Gherbi (LSTM, Montpellier). "Signalling and crosstalk in the actinorhizal root nodule symbiosis"

14:40-15:00

Anouck Diet (IPS2, Gif sur Yvette). "DELLA-mediated gibberellin signaling directly interferes with the Nod factor signaling pathway controlling symbiotic nodulation"

15:00-15:20

David Barker (LIPM, Toulouse). "How rhizobia enter the root hair infection thread without localized plant cell wall degradation"

15:20-16:00

Coffee break (salle des actes)

Session 1. Early signalling and infection

Chairperson: Martin Crespi and Pascal Ratet

16:00-16:20

Sandra Bensmihen (LIPM, Toulouse). "Towards understanding how symbiotic molecules stimulate lateral root formation in Medicago truncatula"

16:20-16:40

Jean-François Arrighi (LSTM, Montpellier). "Genetics of Aeschynomene evenia to shed light on the molecular mechanisms of the Nod-independent process"

16:40-17:00

Fernando Sorroche (LIPM, Toulouse). "Autoregulation of infection in the S. meliloti-Medicago symbiosis"

17:00-18:20

Poster session (salle à manger)

20:00

Dinner in « Le Saint Paul Hôtel »

Friday 30th October

Session 2. Regulation of nodulation

Chairperson: Eric Giraud

09:00-09:20

Farid Regad (LIPM, Toulouse). "NF-YA TFs as key regulators of nodule development"

09:20-09:40

Pascal Ratet (IPS2, Gif sur Yvette). "Symbiosis and immunity in Medicago truncatula"

09:40-10:00

Philippe Normand (Lyon 1). "Physiological effects of Alnus cysteine rich peptides on Frankia physiology"

10:00-10:20

Carine Satgé (LIPM, Toulouse). "Epigenetic regulation of indeterminate nodule development"

10:20-10:50

Coffee break (salle des actes)

Session 3. New insights from Omics studies

Chairperson: Pierre Frendo

10:50-11:10

Isabelle Damiani (Sophia Antipolis). "Deep sequencing of the Medicago truncatula root hair transcriptome after nodulation factor treatment"

11:10-11:30

Benoit Alunni (I2BC, Gif sur Yvette). "Bacteroid differentiation in bradyrhizobia, insights from an "omics" perspective"

11:30-11:50

Martin Crespi (IPS2, Gif sur Yvette). "Small RNA diversity in nitrogen fixing endosymbiosis"

11:50-13:30

Lunch

Session 4. Adaptation and evolution

Chairperson: Philippe Normand

13:30-13:50

Pierre Frendo (Sophia Antipolis). "Thioredoxins S are involved in the reduction of NCR peptides and the regulation of nitrogen-fixing symbiosis in Medicago truncatula"

13:50-14:10

Nicolas Busset (LSTM, Montpellier). "Role of hopanoids in Bradyrhizobium strains during their free living and symbiotic states"

14:10-14:30

Antoine Le Quéré (LSTM, Montpellier). "Adaptation of rhizobium-legume symbiosis to environmental contraints"

14:30-14:50

Dorian Guetta (LIPM, Toulouse). "From pathogeny to mutualism: Molecular mechanisms driving endosymbiosis adaptation in Ralstonia solanacearum"

14:50-15:15

Concluding remarks

See Program in pdf version >>>

NodC26 5x 07IP - Copie

The organizing committee

  • Pierre Frendo
  • Renaud Brouquisse

The scientific committee

  • Julie Cullimore
  • Catherine Masson-Boivin
  • Eric Giraud
  • Peter Mergaert
  • Philippe Normand
  • Pascal Gamas
  • Renaud Brouquisse
  • Pierre Frendo
  • Florian Frugier
  • Marc Lepetit