From genes to plant architecture: the shoot apical meristem in all its states

Program

Conference opening

Xavier Bernard Foundation
Guy Viollet

INRAE Nouvelle-Aquitaine-Poitiers Centre
Philippe Barre

Introduction

Morphogenesis at the shoot meristem: a challenging problem
Jan Traas

diaporama

Session 1: Functionning of the SAM

Chair: Herman Höfte, Jean-Louis Durand

Keynote:

On the initiation and maintenance of shoot meristems
Henrik Jönsson

Short communications:

• Tight control of division plane orientation is necessary to optimize the growth capacity of tissues and organs in Arabidopsis thaliana
  Magalie Uyttewaal 1_uyttewaal_ifm2a2.pdf pdf - 5.09 MB
• De novo stem cell establishment in meristems requires repression of organ boundary cell fate
  Patrick Laufs
• 2_laufs_ifm2a2.pdf pdf - 2.39 MB
• How mechanical signals contribute to plant resilience after drastic pruning: the case of pollard trees
  Marianne Lang
• Analysis of natural variation in meristematic conversion
  Jean-Christophe Palauqui
• Hydraulic stress at the meristem-organ boundaries
  Juan Alonso Serra
• Computational analysis of cell division patterns in the shoot apical meristem
  Philippe Andrey

Keynote:

Changing SAM geometry and generation of phyllotactic patterns
Dorota Kwiatkowska

Keynote:

From phyllotaxis to Homogalacturonan and back: exploring the origins of plant growth
Alexis Peaucelle

Keynote:

How meristem cells measure themselves and why it matters
Robert Sablowski
 

Keynote:

The distribution of sugars and amino acids between source and sink organs: more than just a transporters’game
Sylvie Dinant

Short communications:

• Model-based reconstruction of whole organ growth dynamics reveals invariant patterns in leaf morphogenesis
  Jasmine Burguet
  8 Burguet IFM2A2.pdf pdf - 1.30 MB
• Statistical spatio-temporal atlasing of gene expression patterns during organ growth
  Nicolas Arnaud

• Bract inhibition at floral transition in Arabidopsis thaliana
  Sana Dieudonné
  9 Dieudonné IFM2A2.pdf pdf - 5.90 MB

Session 2: Determination and regulation of the SAM and its faith in the plant

Chair: Frédéric Boudon and Christophe Godin

Keynote:

Off with their head: a tale of decapitation and auxin
Yoan Coudert

Representation and functions of shoot apical meristems in FSPMs
Romain Barillot

Keynote:

What did we learn on meristem fates by modelling fruit tree development?
Evelyne Costes

Short communications:

• Detecting dormancy dynamics in woody plants by characterizing hydraulic connectivity between stem and bud
  Guillaume Charrier
  12 Charrier IFM2A2.pdf pdf - 3.38 MB
• Temperature heterogeneity at crown scale possible impact on tree architecture after late spring frost
  Nicolas Dusart
  13 Dusart IFM2A2.pdf pdf - 2.49 MB
• Axillary meristem is central to the trade-off between flowering and runnering in strawberry
  Amélia Gaston

Keynote:

Control of lateral meristems: how is sugar availability involved in the environmental control of axillary bud outgrowth?
Jessica Bertheloot

Short communications:

• Sugar signaling modulates Shoot meristemless expression and meristem function in Arabidopsis
  Filipa Lara Lopes

• A hydraulically based model framework for the grass leaf meristem
  Tom de Swaef
  15 DeSwaef IFM2A2.pdf pdf - 1.74 MB

Session 3: Toward Functionnal Structural Plant Models integrating the SAM functions

Chair: Jessica Bertheloot, Romain Barillot

Keynote:

Cauliflowers and the genetic origin of fractals in plants
Christophe Godin

Short communications:

• The SAM and the leaf series in grasses: a new model
  Jean-Louis Durand
  16 Durand IFM2A2.pdf pdf - 1.44 MB
• Linking genes to plant global morphogenesis: the role of tropisms just beyond the SAM
  Bruno Moulia
  17 Moulia IFM2A2.pdf pdf - 4.62 MB

Keynote:

Towards the integration of cellular scales in individual plant models
Anne Goelzer

General discussion

What is the next step to integrating SAM biology to the plant level?
Animation Robert Faivre