Méchanotransduction et développement

Personnel du RDP

Olivier HAMANT

DR INRAE
Publications

Jan TRAAS

DR INRAE

Christophe TREHIN

MC UCBL

Marjolaine MARTIN

TR ENS

Claire Lionnet

IE CNRS

Duy-Chi TRINH

Post Doc INRAE

Juan ALONSO-SERRA

Post Doc EMBO

Alice MALIVERT

PhD student

Paula LLANOS

Visiting Scientist (Jacques Dumais lab)

Antoine CHEVALLIER

PhD student

Charlotte KIRCHHELLE

CR INRAE - ERC Project leader "EDGE-CAM"

Isaty MELOGNO

PhD student

Johanna DICKMANN

Postdoc INRAE

Liam ELLIOTT

Postdoc INRAE

Marianne LANG

PhD student

Sana DIEUDONNE

sana.dieudonne
Ingénieur de Recherche

Shogo TAKATANI

Post Doc HFSP (LTF)

Sofia CORREA

PhD student

Xinyu ZHANG

Postdoc INRAE



Publications HAL du labo/EPI 1001887;772

2022

Journal articles

titre
Looking beyond the gene network – metabolic and mechanical cell drivers of leaf morphogenesis
auteur
Hokuto Nakayama, Hiroyuki Koga, Yuchen Long, Olivier Hamant, Ali Ferjani
article
Journal of Cell Science, Company of Biologists, 2022, 135 (8), pp.jcs259611. ⟨10.1242/jcs.259611⟩
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titre
Plant cell walls as mechanical signaling hubs for morphogenesis
auteur
Kristoffer Jonsson, Olivier Hamant, Rishikesh Bhalerao
article
Current Biology - CB, Elsevier, 2022, 32 (7), pp.R334-R340. ⟨10.1016/j.cub.2022.02.036⟩
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titre
Fifteen compelling open questions in plant cell biology
auteur
Adrienne Roeder, Marisa Otegui, Ram Dixit, Charles Anderson, Christine Faulkner, Yan Zhang, Maria Harrison, Charlotte Kirchhelle, Gohta Goshima, Jeremy Coate, Jeff Doyle, Olivier Hamant, Keiko Sugimoto, Liam Dolan, Heather Meyer, David Ehrhardt, Arezki Boudaoud, Carlos Messina
article
The Plant cell, American Society of Plant Biologists (ASPB), 2022, 34 (1), pp.72-102. ⟨10.1093/plcell/koab225⟩
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2021

Journal articles

titre
FERONIA and microtubules independently contribute to mechanical integrity in the Arabidopsis shoot
auteur
Alice Malivert, Özer Erguvan, Antoine Chevallier, Antoine Dehem, Rodrigue Friaud, Mengying Liu, Marjolaine Martin, Théophile Peyraud, Olivier Hamant, Stéphane Verger
article
Plos Biology, 2021, 19 (11), pp.e3001454. ⟨10.1371/journal.pbio.3001454⟩
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titre
Inducible depletion of PI(4,5)P2 by the synthetic iDePP system in Arabidopsis
auteur
Mehdi Doumane, Alexis Lebecq, Léia Colin, Aurélie Fangain, Floris Stevens, Joseph Bareille, Olivier Hamant, Youssef Belkhadir, Teun Munnik, Yvon Jaillais, Marie-Cécile Caillaud
article
Nature Plants, Nature Publishing Group, 2021, 7 (5), pp.587-597. ⟨10.1038/s41477-021-00907-z⟩
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https://hal.inrae.fr/hal-03298511/file/Doumane_iDePP-2021.pdf BibTex
titre
Fluctuations shape plants through proprioception
auteur
Bruno Moulia, Stéphane Douady, Olivier Hamant
article
Science, American Association for the Advancement of Science (AAAS), 2021, 372 (6540), pp.eabc6868. ⟨10.1126/science.abc6868⟩
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titre
Tissue folding at the organ–meristem boundary results in nuclear compression and chromatin compaction
auteur
Kateryna Fal, Niklas Korsbo, Juan Alonso-Serra, Jose Teles, Mengying Liu, Yassin Refahi, Marie-Edith Chaboute, Henrik Jönsson, Olivier Hamant
article
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2021, 118 (8), pp.e2017859118. ⟨10.1073/pnas.2017859118⟩
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https://hal.archives-ouvertes.fr/hal-03164462/file/islandora_115128.pdf BibTex
titre
Stem integrity in Arabidopsis thaliana requires a load-bearing epidermis
auteur
Mariko Asaoka, Mao Ooe, Shizuka Gunji, Pascale Milani, Gaël Runel, Gorou Horiguchi, Olivier Hamant, Shinichiro Sawa, Hirokazu Tsukaya, Ali Ferjani
article
Development (Cambridge, England), Company of Biologists, 2021, 148 (4), ⟨10.1242/dev.198028⟩
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titre
Plants Show Us the Light
auteur
Olivier Hamant
article
Trends in Plant Science, Elsevier, 2021, 26 (2), pp.97-99. ⟨10.1016/j.tplants.2020.10.011⟩
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titre
External Mechanical Cues Reveal a Katanin-Independent Mechanism behind Auxin-Mediated Tissue Bending in Plants
auteur
Anirban Baral, Bibek Aryal, Kristoffer Jonsson, Emily Morris, Elsa Demes, Shogo Takatani, Stéphane Verger, Tongda Xu, Malcolm Bennett, Olivier Hamant, Rishikesh Bhalerao
article
Developmental Cell, Elsevier, 2021, 56 (1), pp.67-80.e3. ⟨10.1016/j.devcel.2020.12.008⟩
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titre
The plasma membrane as a mechanotransducer in plants
auteur
Leia Colin, Olivier Hamant
article
Comptes Rendus. Biologies, Académie des sciences (Paris), 2021, 344 (4), pp.389-407. ⟨10.5802/crbiol.66⟩
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https://hal.inrae.fr/hal-03629499/file/CRBIOL_2021__344_4_389_0.pdf BibTex
titre
Organ geometry channels reproductive cell fate in the Arabidopsis ovule primordium
auteur
Elvira Hernandez-Lagana, Gabriella Mosca, Ethel Mendocilla-Sato, Nuno Pires, Anja Frey, Alejandro Giraldo-Fonseca, Caroline Michaud, Ueli Grossniklaus, Olivier Hamant, Christophe Godin, Arezki Boudaoud, Daniel Grimanelli, Daphné Autran, Célia Baroux
article
eLife, eLife Sciences Publication, 2021, 10, pp.e66031. ⟨10.7554/eLife.66031⟩
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https://hal.archives-ouvertes.fr/hal-03533741/file/elife-66031-v2.pdf BibTex
titre
Tissue folding at the organ-meristem boundary results in nuclear compression and chromatin compaction
auteur
K. Fal, Niklas Korsbo, Juan Alonso-Serra, Jose Teles, Mengying Liu, Yassin Refahi, M-E. Chabouté, Henrik Jönsson, Olivier Hamant
article
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, In press, 118, pp.e2017859118
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https://hal.archives-ouvertes.fr/hal-03145910/file/2020-17859R_Merged_PDF.pdf BibTex
titre
What is quantitative plant biology?
auteur
Daphné Autran, George W Bassel, Eunyoung Chae, Daphne Ezer, Ali Ferjani, Christian Fleck, Olivier Hamant, Félix Hartmann, Yuling Jiao, Iain G Johnston, Dorota Kwiatkowska, Boon L Lim, Ari Pekka Mahönen, Richard J Morris, Bela M Mulder, Naomi Nakayama, Ross Sozzani, Lucia C Strader, Kirsten ten Tusscher, Minako Ueda, Sebastian Wolf
article
Quantitative Plant Biology, 2021, 2, 16 p. ⟨10.1017/qpb.2021.8⟩
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https://hal.inrae.fr/hal-03323252/file/2021_Autran_Quantitative_Plant_Biology.pdf BibTex

2020

Journal articles

titre
Microtubule self-organisation during seed germination in Arabidopsis
auteur
Huifang Yan, Nicole Chaumont, Jean François Gilles, Susanne Bolte, Olivier Hamant, Christophe Bailly
article
BMC Biology, BioMed Central, 2020, 18 (1), ⟨10.1186/s12915-020-00774-8⟩
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https://hal.sorbonne-universite.fr/hal-02618291/file/document.pdf BibTex
titre
Plant scientists can’t ignore Jevons paradox anymore
auteur
Olivier Hamant
article
Nature Plants, Nature Publishing Group, 2020, 6 (7), pp.720-722. ⟨10.1038/s41477-020-0722-3⟩
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titre
How humans may co-exist with Earth? The case for suboptimal systems
auteur
Stéphane Grumbach, Olivier Hamant
article
Anthropocene, Elsevier, 2020, 30, pp.1-10. ⟨10.1016/j.ancene.2020.100245⟩
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https://hal.inria.fr/hal-03019269/file/201122_SuboptOH%2BSG.pdf BibTex
titre
Robust organ size requires robust timing of initiation orchestrated by focused auxin and cytokinin signalling
auteur
Mingyuan Zhu, Weiwei Chen, Vincent Mirabet, Lilan Hong, Simone Bovio, Soeren Strauss, Erich Schwarz, Satoru Tsugawa, Zhou Wang, Richard Smith, Chun-Biu Li, Olivier Hamant, Arezki Boudaoud, Adrienne Roeder
article
Nature Plants, Nature Publishing Group, 2020, 6 (6), pp.686-698. ⟨10.1038/s41477-020-0666-7⟩
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titre
Microtubule Response to Tensile Stress Is Curbed by NEK6 to Buffer Growth Variation in the Arabidopsis Hypocotyl
auteur
Shogo Takatani, Stéphane Verger, Takashi Okamoto, Taku Takahashi, Olivier Hamant, Hiroyasu Motose
article
Current Biology - CB, Elsevier, 2020, 30 (8), pp.1491-1503.e2. ⟨10.1016/j.cub.2020.02.024⟩
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https://hal.inrae.fr/hal-03153135/file/S0960982220301974.pdf BibTex
titre
Flowering Plants in the Anthropocene: A Political Agenda
auteur
Ioan Negrutiu, Michael Frohlich, Olivier Hamant
article
Trends in Plant Science, Elsevier, 2020, 25 (4), pp.349-368. ⟨10.1016/j.tplants.2019.12.008⟩
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titre
Mechanical Shielding in Plant Nuclei
auteur
Rituparna Goswami, Atef Asnacios, Pascale Milani, Stéfanie Graindorge, Guy Houlné, Jérôme Mutterer, Olivier Hamant, Marie-Edith Chabouté
article
Current Biology - CB, Elsevier, 2020, 30 (11), pp.2013-+. ⟨10.1016/j.cub.2020.03.059⟩
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https://hal.archives-ouvertes.fr/hal-02993638/file/CB%20Goswami%20et%20al.%2C%202020.%20hal.pdf BibTex
titre
Is the plant nucleus a mechanical rheostat?
auteur
Rituparna Goswami, Atef Asnacios, Olivier Hamant, Marie-Edith Chabouté
article
Current Opinion in Plant Biology, Elsevier, 2020, 57, pp.155-163. ⟨10.1016/j.pbi.2020.09.001⟩
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https://hal.archives-ouvertes.fr/hal-02993636/file/Current%20goswami%20et%20al-HAL.pdf BibTex
titre
Cortical tension overrides geometrical cues to orient microtubules in confined protoplasts
auteur
Leia Colin, Antoine Chevallier, Satoru Tsugawa, Florian Gacon, Christophe Godin, Virgile Viasnoff, Timothy Saunders, Olivier Hamant
article
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2020, 117 (51), pp.32731-32738. ⟨10.1073/pnas.2008895117⟩
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https://hal.archives-ouvertes.fr/hal-03063893/file/Colin%20PNAS%202020.pdf BibTex
titre
Yves Couder: Putting mechanics back into the shoot apical meristem
auteur
Jan Traas, Olivier Hamant
article
Comptes Rendus Mécanique, Elsevier, 2020, 348 (6-7), pp.679-684. ⟨10.5802/crmeca.19⟩
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Book sections

titre
Shaping Organs: Shared Structural Principles Across Kingdoms
auteur
T.E. Saunders, Olivier Hamant
article
Annual Review of Cell and Developmental Biology, 36 (1), pp.385-410, 2020, ⟨10.1146/annurev-cellbio-012820-103850⟩
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Preprints, Working Papers, ...

titre
iDePP: a genetically encoded system for the inducible depletion of PI(4,5)P 2 in Arabidopsis thaliana
auteur
Mehdi Doumane, Léia Colin, Alexis Lebecq, Aurélie Fangain, Joseph Bareille, Olivier Hamant, Youssef Belkhadir, Yvon Jaillais, Marie-Cécile Caillaud
article
2020
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https://hal.archives-ouvertes.fr/hal-02992517/file/2020.05.13.091470v1.full.pdf BibTex

2019

Journal articles

titre
Seven steps to make travel to scientific conferences more sustainable
auteur
Olivier Hamant, Timothy Saunders, Virgile Viasnoff
article
Nature, Nature Publishing Group, 2019, 573 (7774), pp.451-452. ⟨10.1038/d41586-019-02747-6⟩
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https://hal.inrae.fr/hal-02539837/file/Hamant%20NAture%202019.pdf BibTex
titre
Mechanical conflicts in twisting growth revealed by cell-cell adhesion defects
auteur
Stéphane Verger, Mengying Liu, Olivier Hamant
article
Frontiers in Plant Science, Frontiers, 2019, 10, ⟨10.3389/fpls.2019.00173⟩
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-02269494/file/2019_Verger_Front_Plant_Sci.pdf BibTex
titre
ImageJ SurfCut: a user-friendly pipeline for high-throughput extraction of cell contours from 3D image stacks
auteur
Ozer Erguvan, Marion Louveaux, Olivier Hamant, Stéphane Verger
article
BMC Biology, BioMed Central, 2019, 17, ⟨10.1186/s12915-019-0657-1⟩
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https://hal.archives-ouvertes.fr/hal-02269504/file/2019_Erguvan_BMC%20Biol.pdf BibTex
titre
Does resource availability help determine the evolutionary route to multicellularity?
auteur
Olivier Hamant, Ramray Bhat, Vidyanand Nanjundiah, Stuart A. Newman
article
Evolution and Development, Wiley, 2019, 21 (3), pp.115-119. ⟨10.1111/ede.12287⟩
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titre
Are microtubules tension sensors?
auteur
Olivier O. Hamant, Daisuke Inoue, David Bouchez, Jacques Dumais, Eric Mjolsness
article
Nature Communications, Nature Publishing Group, 2019, 10 (1), ⟨10.1038/s41467-019-10207-y⟩
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https://hal.inrae.fr/hal-02627540/file/2019_Hamant_Nature_Comm_1.pdf BibTex
titre
Mechanical asymmetry of the cell wall predicts changes in pavement cell geometry
auteur
Mateusz Majda, Pawel Krupinski, Henrik Jönsson, Olivier O. Hamant, Stéphanie Robert
article
Developmental Cell, Elsevier, 2019, 50 (1), pp.9-10. ⟨10.1016/j.devcel.2019.06.002⟩
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Book sections

titre
Time-Lapse Imaging of Developing Shoot Meristems Using A Confocal Laser Scanning Microscope
auteur
Olivier O. Hamant, Pradeep Das, Agata Burian
article
Plant Cell Morphogenesis: Methods and Protocols, 1992, pp.257-268, 2019, 978-1-4939-9469-4, 978-1-4939-9468-7. ⟨10.1007/978-1-4939-9469-4_17⟩
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2018

Journal articles

titre
The contribution of mechanosensing to epidermal cell fate specification
auteur
Alice Malivert, Olivier Hamant, Gwyneth Ingram
article
Current Opinion in Genetics and Development, Elsevier, 2018, 51, pp.52-58. ⟨10.1016/j.gde.2018.06.011⟩
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titre
An image analysis pipeline to quantify emerging cracks in materials or adhesion defects in living tissues
auteur
Stéphane Verger, Guillaume Cerutti, Olivier Hamant
article
Bio-protocol , Bio-protocol LCC, 2018, 8 (19), pp.1-16. ⟨10.21769/BioProtoc.3036⟩
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https://hal.archives-ouvertes.fr/hal-02171434/file/2018_Verger_Bio_Protoc.pdf BibTex
titre
A tension-adhesion feedback loop in plant epidermis
auteur
Stéphane Verger, Yuchen Long, Arezki Boudaoud, Olivier O. Hamant
article
eLife, eLife Sciences Publication, 2018, 7, ⟨10.7554/elife.34460.001⟩
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https://hal.inrae.fr/hal-02621933/file/2018_Verger_eLife_1.pdf BibTex
titre
The self-organization of plant microtubules inside the cell volume yields their cortical localization, stable alignment, and sensitivity to external cues
auteur
Vincent Mirabet, Pawel Krupinski, Olivier O. Hamant, Elliot M. Meyerowitz, Henrik Jönsson, Arezki Boudaoud
article
PLoS Computational Biology, Public Library of Science, 2018, 14 (2), pp.e1006011. ⟨10.1371/journal.pcbi.1006011⟩
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https://hal.inrae.fr/hal-02624527/file/2018_Mirabet-Plos_Comput_Biol_1.pdf BibTex
titre
A phosphoinositide map at the shoot apical meristem in Arabidopsis thaliana
auteur
Thomas Stanislas, Matthieu Platre, Mengying Liu, Léa E S Rambaud-Lavigne, Yvon Jaillais, Olivier Hamant
article
BMC Biology, BioMed Central, 2018, 16 (1), pp.20. ⟨10.1186/s12915-018-0490-y⟩
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https://hal.archives-ouvertes.fr/hal-02348886/file/s12915-018-0490-y.pdf BibTex
titre
Plant physiology: FERONIA defends the cell walls against corrosion
auteur
Stéphane Verger, Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2018, 28 (5), pp.R215-R217. ⟨10.1016/j.cub.2018.01.043⟩
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titre
Why plants make puzzle cells, and how their shape emerges
auteur
Aleksandra Sapala, Adam Runions, Anne-Lise Routier-Kierzkowska, Mainak das Gupta, Lilan Hong, Hugo Hofhuis, Stéphane Verger, Gabriella Mosca, Chun-Biu Li, Angela Hay, Olivier O. Hamant, Adrienne H. K. Roeder, Miltos Tsiantis, Przemyslaw Prusinkiewicz, Richard S. Smith
article
eLife, eLife Sciences Publication, 2018, 7, ⟨10.7554/elife.32794⟩
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https://hal.inrae.fr/hal-02622500/file/2018_Sapala_e%20life_1.pdf BibTex
titre
An Image Analysis Pipeline to Quantify Emerging Cracks in Materials or Adhesion Defects in Living Tissues
auteur
Stéphane Verger, Guillaume Cerutti, Olivier Hamant
article
Bio-protocol , Bio-protocol LCC, 2018, 8 (19)
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https://hal.inria.fr/hal-01940178/file/Bio-protocol3036.pdf BibTex
titre
Heterogeneity and robustness in plant morphogenesis: From cells to organs
auteur
Lilan Hong, Mathilde Dumond, Mingyuan Zhu, Satoru Tsugawa, Chun-Biu Li, Arezki Boudaoud, Olivier O. Hamant, Adrienne H.K. Roeder
article
Annual Review of Plant Biology, Annual Reviews, 2018, 69 (1), pp.469-495. ⟨10.1146/annurev-arplant-042817-040517⟩
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2017

Journal articles

titre
Digital Revolution or Anthropocenic Feedback?
auteur
Stéphane Grumbach, Olivier Hamant
article
Anthropocene Review, SAGE Publications, 2017, 5 (1), pp.1-12. ⟨10.1177/2053019617748337⟩
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https://hal.inria.fr/hal-01227303/file/Final-Digital%20Revolution28dec2017.pdf BibTex
titre
Pourquoi "maintenant" ? Le cas de la révolution de l’intermédiation algorithmique
auteur
Stéphane Grumbach, Olivier O. Hamant
article
Multitudes, Éd. Inculte, A paraître
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titre
The RNA polymerase-associated factor 1 complex Is required for plant touch responses
auteur
Gregory S. Jensen, Kateryna Fal, Olivier Hamant, Elizabeth S. Haswell
article
Journal of Experimental Botany, Oxford University Press (OUP), 2017, 68 (3), pp.499-511. ⟨10.1093/jxb/erw439⟩
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titre
Mechanochemical polarization of contiguous cell walls shapes plant pavement cells
auteur
Mateusz Majda, Peter Grones, Ida-Maria Sintorn, Thomas Vain, Pascale Milani, Pawel Krupinski, Beata Zagórska-Marek, Corrado Viotti, Henrik Jönsson, Ewa J. Mellerowicz, Olivier O. Hamant, Stéphanie Robert
article
Developmental Cell, Elsevier, 2017, 43 (3), pp.290-304. ⟨10.1016/j.devcel.2017.10.017⟩
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titre
Mechanical shielding of rapidly growing cells buffers growth heterogeneity and contributes to organ shape reproducibility
auteur
Nathan Hervieux, Satoru Tsugawa, Antoine Fruleux, Mathilde Dumond, Anne-Lise Routier-Kierzkowska, Tamiki Komatsuzaki, Arezki Boudaoud, John C. Larkin, Richard S. Smith, Chun-Biu Li, Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2017, 27 (22), pp.3468-3479. ⟨10.1016/j.cub.2017.10.033⟩
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titre
Mechano-devo
auteur
Olivier Hamant
article
Mechanisms of Development, Elsevier, 2017, 145, pp.2-9. ⟨10.1016/j.mod.2017.02.004⟩
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titre
Clones of cells switch from reduction to enhancement of size variability in Arabidopsis sepals
auteur
Satoru Tsugawa, Nathan Hervieux, Daniel Kierzkowski, Anne-Lise Routier-Kierzkowska, Aleksandra Sapala, Olivier O. Hamant, Richard S. Smith, Adrienne H. K. Roeder, Arezki Boudaoud, Chun-Biu Li
article
Development (Cambridge, England), Company of Biologists, 2017, 144 (23), pp.4398-4405. ⟨10.1242/dev.153999⟩
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https://hal.inrae.fr/hal-02619420/file/2017_Tsugawa_Develop_1.pdf BibTex
titre
Phyllotactic regularity requires the Paf1 complex in Arabidopsis
auteur
Kateryna Fal, Mengying Liu, Assem Duisembekova, Yassin Refahi, Elizabeth S. Haswell, Olivier O. Hamant
article
Development (Cambridge, England), Company of Biologists, 2017, 144 (23), pp.4428-4436. ⟨10.1242/dev.154369⟩
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https://hal.inrae.fr/hal-02628882/file/2017_Fal_Dev_1.pdf BibTex
titre
Life behind the wall: sensing mechanical cues in plants
auteur
Olivier Hamant, Elizabeth S. Haswell
article
BMC Biology, BioMed Central, 2017, 15 (1), pp.1-9. ⟨10.1186/s12915-017-0403-5⟩
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https://hal.archives-ouvertes.fr/hal-01594579/file/2017_Hamant_BMC_Biology_%7BE8F005B9-AE4F-47E7-96AB-5A4AE4943368%7D.pdf BibTex

Book sections

titre
In-vivo analysis of morphogenesis in plants
auteur
Thomas Stanislas, Olivier O. Hamant, Jan Traas
article
Cell Polarity and Morphogenesis, 139, Academic Press - Elsevier, 2017, Methods in Cell Biology, 978-0-12-809373-3. ⟨10.1016/bs.mcb.2016.11.008⟩
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2016

Journal articles

titre
Extracting subcellular fibrillar alignment with error estimation: Application to microtubules
auteur
Satoru Tsugawa, Nathan Hervieux, Olivier O. Hamant, Arezki Boudaoud, Richard S. Smith, Chun-Biu Li, Tamiki Komatsuzaki
article
Biophysical Journal, Biophysical Society, 2016, 110 (8), pp.1836-1844. ⟨10.1016/j.bpj.2016.03.011⟩
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titre
The impact of mechanical compression on cortical microtubules in Arabidopsis: a quantitative pipeline
auteur
Marion Louveaux, Sebastien Rochette, Léna Beauzamy, Arezki Boudaoud, Olivier Hamant
article
Plant Journal, Wiley, 2016, 88 (2), pp.328-342. ⟨10.1111/tpj.13290⟩
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titre
Variable cell growth yields reproducible organ development through spatiotemporal averaging
auteur
Lilan Hong, Mathilde Dumond, Satoru Tsugawa, Aleksandra Sapala, Anne-Lise Routier-Kierzkowska, Yong Zhou, Catherine Chen, Annamaria Kiss, Mingyuan Zhu, Olivier O. Hamant, Richard s. Smith, Tamiki Komatsuzaki, Chun-Biu Li, Arezki Boudaoud, Adrienne h.K. Roeder
article
Developmental Cell, Elsevier, 2016, 38 (1), pp.15-32. ⟨10.1016/j.devcel.2016.06.016⟩
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titre
Developing a 'thick skin': a paradoxical role for mechanical tension in maintaining epidermal integrity?
auteur
Roberta Galletti, Stéphane Verger, Olivier Hamant, Gwyneth Ingram
article
Development (Cambridge, England), Company of Biologists, 2016, 143 (18), pp.3249-3258. ⟨10.1242/dev.132837⟩
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https://hal.archives-ouvertes.fr/hal-01606967/file/2016_Galletti_Development_1.pdf BibTex
titre
How do plants read their own shapes?
auteur
Olivier Hamant, Bruno Moulia
article
New Phytologist, Wiley, 2016, 212 (2), pp.333-337. ⟨10.1111/nph.14143⟩
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titre
Meristem Biology Flourishes Under Mt. Tai
auteur
Yuling Jiao, Olivier Hamant, Zhaojun Ding, Xian Sheng Zhang
article
Molecular Plant, Cell Press/Oxford UP, 2016, 9 (8), pp.1224-1227. ⟨10.1016/j.molp.2016.07.001⟩
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titre
Cell division plane orientation based on tensile stress inArabidopsis thaliana
auteur
Marion Louveaux, Jean-Daniel Julien, Vincent Mirabet, Arezki Boudaoud, Olivier O. Hamant
article
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2016, 113 (30), pp.E4294-E4303. ⟨10.1073/pnas.1600677113⟩
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titre
An epidermis-driven mechanism positions and scales stem cell niches in plants
auteur
Jérémy Gruel, Benoit Landrein, Paul Tarr, Christoph Schuster, Yassin Refahi, Arun Sampathkumar, Olivier O. Hamant, Elliot M. Meyerowitz, Henrik Jönsson
article
Science Advances , American Association for the Advancement of Science (AAAS), 2016, 2 (1), ⟨10.1126/sciadv.1500989⟩
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titre
Interplay between miRNA regulation and mechanical stress for CUC gene expression at the shoot apical meristem
auteur
Kateryna Fal, Benoit Landrein, Olivier O. Hamant
article
Plant Signaling and Behavior, Taylor & Francis, 2016, 11 (3), ⟨10.1080/15592324.2015.1127497⟩
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titre
A mechanical feedback restricts sepal growth and shape in arabidopsis
auteur
Nathan Hervieux, Mathilde Dumond, Aleksandra Sapala, Anne-Lise Routier-Kierzkowska, Daniel Kierzkowski, Adrienne Roeder, Richard Smith, Arezki Boudaoud, Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2016, 26 (8), pp.1019-1028. ⟨10.1016/j.cub.2016.03.004⟩
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2015

Journal articles

titre
A Computational Framework for 3D Mechanical Modeling of Plant Morphogenesis with Cellular Resolution
auteur
Frédéric Boudon, Jérôme Chopard, Olivier Ali, Benjamin Gilles, Olivier Hamant, Arezki Boudaoud, Jan Traas, Christophe Godin
article
PLoS Computational Biology, Public Library of Science, 2015, 11 (1), pp.1-16. ⟨10.1371/journal.pcbi.1003950⟩
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titre
Meristem size contributes to the robustness of phyllotaxis in Arabidopsis
auteur
Benoit Landrein, Yassin Refahi, Fabrice Besnard, Nathan Hervieux, Vincent Mirabet, Arezki Boudaoud, Teva Vernoux, Olivier O. Hamant
article
Journal of Experimental Botany, Oxford University Press (OUP), 2015, 66 (5), pp.1317-1324. ⟨10.1093/jxb/eru482⟩
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titre
Mechanical stress contributes to the expression of the STM homeobox gene in Arabidopsis shoot meristems
auteur
Benoit Landrein, Annamaria Kiss, Massimiliano Sassi, Aurélie Chauvet, Pradeep Das, Millan Cortizo Sabugo Cortizo, Patrick P. Laufs, Seiji Takeda, Mitsuhiro Aida, Jan Traas, Teva Vernoux, Arezki Boudaoud, Olivier O. Hamant
article
eLife, eLife Sciences Publication, 2015, 4, pp.1-27. ⟨10.7554/eLife.07811⟩
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titre
Mechanically, the shoot apical meristem of Arabidopsis behaves like a shell inflated by a pressure of about 1 MPa
auteur
Léna Beauzamy, Marion Louveaux, Olivier O. Hamant, Arezki Boudaoud
article
Frontiers in Plant Science, Frontiers, 2015, 6, pp.1-10. ⟨10.3389/fpls.2015.01038⟩
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2014

Journal articles

titre
An Auxin-Mediated Shift toward Growth Isotropy Promotes Organ Formation at the Shoot Meristem in Arabidopsis
auteur
Massimiliano Sassi, Olivier Ali, Frédéric Boudon, Gladys Cloarec, Ursula Abad, Coralie Cellier, Xu Chen, Benjamin Gilles, Pascale Milani, Jìrí Friml, Teva Vernoux, Christophe Godin, Olivier Hamant, Jan Traas
article
Current Biology - CB, Elsevier, 2014, 24 (19), pp.2335-2342. ⟨10.1016/j.cub.2014.08.036⟩
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titre
Matching Patterns of Gene Expression to Mechanical Stiffness at Cell Resolution through Quantitative Tandem Epifluorescence and Nanoindentation.
auteur
Pascale Milani, Vincent Mirabet, Coralie Cellier, Frédérique Rozier, Olivier O. Hamant, Pradeep Das, Arezki Boudaoud
article
Plant Physiology, Oxford University Press ; American Society of Plant Biologists, 2014, 165 (4), pp.1399-1408. ⟨10.1104/pp.114.237115⟩
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titre
FibrilTool, an ImageJ plug-in to quantify fibrillar structures in raw microscopy images
auteur
Arezki Boudaoud, Agata Burian, Dorota Borowska-Wykret, Magalie Uyttewaal, Roman Wrzalik, Dorota Kwiatkowska, Olivier Hamant
article
Nature Protocols, Nature Publishing Group, 2014, 9 (2), pp.457 - 463. ⟨10.1038/nprot.2014.024⟩
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titre
A Comparative Mechanical Analysis of Plant and Animal Cells Reveals Convergence across Kingdoms
auteur
Pauline Durand-Smet, Nicolas Chastrette, Axel Guiroy, Alain Richert, Annick Berne Dedieu, Judit Szecsi, Arezki Boudaoud, Jean-Marie Frachisse, Mohammed Bendahmane, Olivier O. Hamant, Atef Asnacios
article
Biophysical Journal, Biophysical Society, 2014, 107 (10), pp.2237-2244. ⟨10.1016/j.bpj.2014.10.023⟩
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titre
Subcellular and supracellular mechanical stress prescribes cytoskeleton behavior in Arabidopsis cotyledon pavement cells
auteur
Arun Sampathkumar, Pawel Krupinski, Raymond Wightman, Pascale Milani, Alexandre Berquand, Arezki Boudaoud, Olivier O. Hamant, Henrik Jönsson, Elliot M. Meyerowitz
article
eLife, eLife Sciences Publication, 2014, 3, ⟨10.7554/eLife.01967.001⟩
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Book sections

titre
Time-lapse imaging of developing meristems using confocal laser scanning microscope
auteur
Olivier O. Hamant, Pradeep Das, Agata Burian
article
Plant cell morphogenesis: methods and protocols, 1080, Humana Press, 2014, Methods in Molecular Biology, 978-1-62703-643-6; 978-1-62703-642-9. ⟨10.1007/978-1-62703-643-6_9⟩
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2013

Journal articles

titre
Cell biology: cytoskeleton network topology feeds back on its regulation
auteur
Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2013, 23 (21), pp.R963-R965. ⟨10.1016/j.cub.2013.09.051⟩
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titre
A correlative microscopy approach relates microtubule behaviour, local organ geometry, and cell growth at the Arabidopsis shoot apical meristem
auteur
Agata Burian, Michal Ludynia, Magalie Uyttewaal, Jan Traas, Arezki Boudaoud, Olivier Hamant, Dorota Kwiatkowska
article
Journal of Experimental Botany, Oxford University Press (OUP), 2013, 64 (18), pp.5753-5767. ⟨10.1093/jxb/ert352⟩
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https://hal.archives-ouvertes.fr/hal-01204036/file/burian_2013_1.pdf https://hal.archives-ouvertes.fr/hal-01204036/file/burian_2013_sequence_video_2.avi BibTex
titre
How mechanical stress controls microtubule behavior and morphogenesis in plants: history, experiments and revisited theories
auteur
Benoit Landrein, Olivier O. Hamant
article
Plant Journal, Wiley, 2013, 75 (2), pp.324 - 338. ⟨10.1111/tpj.12188⟩
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titre
Widespread mechanosensing controls the structure behind the architecture in plants.
auteur
Olivier O. Hamant
article
Current Opinion in Plant Biology, Elsevier, 2013, 16 (5), pp.654-60. ⟨10.1016/j.pbi.2013.06.006⟩
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titre
Impaired Cellulose Synthase Guidance Leads to Stem Torsion and Twists Phyllotactic Patterns in Arabidopsis
auteur
Benoit Landrein, Rahul Lathe, Martin Bringmann, Cyril Vouillot, Alexander Ivakov, Arezki Boudaoud, Staffan Persson, Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2013, 23 (10), pp.895 - 900. ⟨10.1016/j.cub.2013.04.013⟩
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titre
The mechanics behind cell division
auteur
Marion Louveaux, Olivier O. Hamant
article
Current Opinion in Plant Biology, Elsevier, 2013, 16 (6), pp.774-779. ⟨10.1016/j.pbi.2013.10.011⟩
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titre
Integrative cell biology: katanin at the crossroads
auteur
Olivier O. Hamant
article
Current Biology - CB, Elsevier, 2013, 23 (5), pp.R206-R208. ⟨10.1016/j.cub.2013.01.031⟩
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titre
Plant science and agricultural productivity: Why are we hitting the yield ceiling?
auteur
Steve de Bossoreille de Ribou, Florian Douam, Olivier O. Hamant, Michael W. Frohlich, Ioan Negrutiu
article
Plant Science, 2013, 210, pp.159-176. ⟨10.1016/j.plantsci.2013.05.010⟩
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2012

Journal articles

titre
Regulatory role of cell division rules on tissue growth heterogeneity
auteur
Karen Alim, Olivier O. Hamant, Arezki Boudaoud
article
Frontiers in Plant Science, Frontiers, 2012, 3, pp.1-13. ⟨10.3389/fpls.2012.00174⟩
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titre
Cracking the elusive alignment hypothesis: the microtubule-cellulose synthase nexus unraveled
auteur
Martin Bringmann, Benoit Landrein, Christian Schudoma, Olivier O. Hamant, Marie-Theres Hauser, Staffan Persson
article
Trends in Plant Science, Elsevier, 2012, 17 (11), pp.666 - 674. ⟨10.1016/j.tplants.2012.06.003⟩
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titre
The mechanics behind cell polarity
auteur
Atef Asnacios, Olivier O. Hamant
article
Trends in Cell Biology, Elsevier, 2012, 22 (11), pp.584 - 591. ⟨10.1016/j.tcb.2012.08.005⟩
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titre
Mechanical Stress Acts via Katanin to Amplify Differences in Growth Rate between Adjacent Cells in Arabidopsis
auteur
Magalie M. Uyttewaal, Agata A. Burian, Karen K. Alim, Benoi T. B. T. Landrein, Dorota D. Borowska-Wykret, Annick A. Dedieu, Alexis A. Peaucelle, Michal M. Ludynia, Jan J. Traas, Arezki A. Boudaoud, Dorota D. Kwiatkowska, Olivier O. Hamant
article
Cell, Elsevier, 2012, 149 (2), pp.439 - 451. ⟨10.1016/j.cell.2012.02.048⟩
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2011

Journal articles

titre
Quantitative imaging strategies pave the way for testable biological concepts
auteur
Olivier O. Hamant
article
BMC Biology, BioMed Central, 2011, 9, ⟨10.1186/1741-7007-9-10⟩
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titre
Organogenesis from stem cells in planta: multiple feedback loops integrating molecular and mechanical signals
auteur
Fabrice Besnard, Teva Vernoux, Olivier O. Hamant
article
Cellular and Molecular Life Sciences, Springer Verlag, 2011, 68 (17), pp.2885-2906. ⟨10.1007/s00018-011-0732-4⟩
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titre
The Role of Mechanical Forces in Plant Morphogenesis
auteur
Vincent Mirabet, Pradeep Das, Arezki Boudaoud, Olivier O. Hamant
article
Annual Review of Plant Biology, Annual Reviews, 2011, 62, pp.365 - 385. ⟨10.1146/annurev-arplant-042110-103852⟩
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2010

Journal articles

titre
Integrating physical stress, growth and development.
auteur
M. Uyttewaal, Jan Traas, Olivier Hamant
article
Current Opinion in Plant Biology, Elsevier, 2010, 13 (1), pp.46-52
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titre
Alignment between PIN1 polarity and microtubule orientation in the shoot apical meristem reveals a tight coupling between morphogenesis and auxin transport
auteur
Marcus G. Heisler, Olivier O. Hamant, Pawel Krupinski, Magalie M. Uyttewaal, Carolyn Ohno, Henrik Jönsson, Jan Traas, Elliot M. Meyerowitz
article
PLoS Biology, Public Library of Science, 2010, 8 (10), ⟨10.1371/journal.pbio.1000516⟩
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titre
The mechanics behind plant development.
auteur
Olivier Hamant, Jan Traas
article
New Phytologist, Wiley, 2010, 185 (2), pp.369-385. ⟨10.1111/j.1469-8137.2009.03100.x⟩
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titre
Regulation of shape and patterning in plant development.
auteur
Olivier Hamant, Jan Traas, Arezki Boudaoud
article
Current Opinion in Genetics and Development, Elsevier, 2010, pp.454-459
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titre
Plant development: a TALE story
auteur
Olivier Hamant, Veronique Pautot
article
Comptes Rendus Biologies, Elsevier, 2010, 333 (4), pp.371-381. ⟨10.1016/j.crvi.2010.01.015⟩
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2009

Journal articles

titre
Turning a plant tissue into a living cell froth through isotropic growth
auteur
Francis Corson, Olivier Hamant, S. Bohn, Jan Traas, Arezki Boudaoud, Y. Couder
article
Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2009, 106 (21), pp.8453-8458
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2008

Journal articles

titre
Developmental patterning by mechanical signals in Arabidopsis
auteur
Olivier Hamant, Mg Heisler, P. Krupinski, M. Uyttewaal, Francis Corson, Arezki Boudaoud, Em Meyerowitz, Y. Couder, P. Sahlin, Hannes Jónsson
article
Science, American Association for the Advancement of Science (AAAS), 2008, 322, pp.1650-1655
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2006

Journal articles

titre
Alleles of add 1 dissect REC8 functions during meiotic prophase 1
auteur
Inna Golubovskaya, Olivier Hamant, L. Timofejeva, R. Wang Chung Ju, David Braun, Robert Meeley, Wz Cande
article
Journal of Cell Science, Company of Biologists, 2006, 119 (16), pp.3306-3315
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titre
Genetics of meiotic prophase I in plants
auteur
Olivier Hamant, H.-L. Ma, Wz Cande
article
Annual Review of Plant Biology, Annual Reviews, 2006, 57, pp.267-302
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titre
KNAT6: an Arabidopsis homeobox gene involved in meristem activity and organ separation.
auteur
E. Belles-Boix, Olivier Hamant, S.M. Witiak, H.L. Morin, Jan Traas, V. Pautot
article
The Plant cell, American Society of Plant Biologists (ASPB), 2006, pp.1900-1907
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** 1 PhD position available (in collaboration), see pdf below **

Plant organ morphogenesis : geometry calls for biochemistry and mechanics

Changing shape is changing structure. By definition, this involves the laws of mechanics. Not only do plant generate diverse shapes, but shape itself can serve as an instructive cue to channel morphogenesis, through biochemical and mechanical signaling.

New scientific questions : robustness, multiscale hierarchy, emergent properties

How do organs know when to stop growing ? How do multicellular organisms produce their diverse shapes ? The underlying process, morphogenesis, is complex and characterised by three remarkable features : robustness, hierarchy, and emergence. Morphogenesis robustly produces highly similar forms across a wide range of conditions, despite and sometimes thanks to high levels of local variability. Morphogenesis involves events on a hierarchy of different scales in time and space (from the molecular to the organ scale). Individual factors contributing to morphogenetic events have been studied extensively, but are insufficient to fully predict morphogenesis – morphogenesis has emergent properties. Therefore, a central and challenging question in biology is how different factors are integrated and coordinated across multiple spatio-temporal scales to robustly produce organ shapes.

1. Cell Edges and Morphogenesis

Plants face a particular challenge when forming new organs : their cells share a rigid cell wall, which requires adjacent cells to coordinate their growth.

Growth patterns in Arabidopsis lateral roots

Directional growth depends on differences in cell wall mechanical properties in different regions of the cell. To establish and modulate these, cells precisely coordinate the transport of different cell wall components and their associated biosynthetic machinery to different regions of the cell surface.

Cell edges are a biochemically distinct domain in plant cells. Cell wall biosynthesis involves multiple trafficking pathways to the cell surface, which are regulated by Rab GTPases. RAB-A5c mediates a trafficking pathway specifically to cell edges in Arabidopsis lateral roots.

Our team is particularly interested in cell edges, the geometric domain at the intersection of two cell faces. Our previous work has shown that plants specify a transport route to cell edges which required for directional growth, but does not act through oriented cellulose deposition, the leading paradigm for directional growth control.

In our current work funded by ERC Starting Grant EDGE-CAM, we try to understand why cell edges are important during morphogenesis, and how plant cells specify their edges as distinct domains.

Why cell edges are important during morphogenesis ? Cell edges are notable domains from a topological, geometric, and mechanical perspective. With respect to mechanics, they accumulate stresses arising at the cell level through turgor pressure, and are also exposed to shear stresses arising through differential growth at the tissue scale. We hypothesise that plants specify a cell wall sensing module at cell edges through which they can monitor the mechanical status at the cell wall and adapt growth through fine-tuning trafficking pathways. We are combining forward genetics, proteomics, quantitative imaging, and computational modelling to test our hypothesis and identify new components of edge-based growth control.

A multi-scale model for robust morphogenesis. [1] An RLP-based cell wall sensing module at cell edges senses cell wall changes associated with tissue-level mechanics. [2] Downstream targets of the cell wall sensing module include endomembrane trafficking pathways involved in cell wall assembly. [3] Activity of these pathways determines cellular growth patterns and tissue-level mechanical constraints.

How plant cells specify their edges as distinct domains ? Protein localisation to cell edges has been linked to cytoskeleton organisation and the status of the cell wall, however it is an open question how plant cells identify their edges or differentiate between different edges in the same cell. We are exploring mechanical, geometric, and biochemical factors that may contribute to the recruitment of proteins to cell edges using quantitative imaging and genetics in planta and in an in vitro single-cell system.

Associated team members :
Charlotte Kirchhelle
Antoine Chevallier
Liam Elliott
Claire Lionnet
Marjolaine Martin
Zoe Nemec Venza
Xinyu Zhang

2. Multiscale microtubule response to stress

In past work, we showed that cortical microtubules align along maximal tensile stress directions, thereby reinforcing cell walls through the guidance of cellulose deposition.

Cortical microtubules also guide the orientation of the next division plane (through the preprophase band). Combining modeling and experiments, we formally showed that tensile stress prescribes cell division plane orientation. We also unraveled a role of microtubule dynamics and response to stress in organ initiation in organ shape robustness, in organ growth arrest and in organ flatness.

Confined protoplasts in microwells

We are now investigating the possibility that microtubules may be their own mechanosensors, notably using in vitro and microfabrication techniques, such as confined protoplasts in microwells.

In planta, this response may have important implications, relating mechanical conflicts due to differential growth to morphogenesis.

CreLox lines inducing growth mosaics and artificial mechanical conflicts at the shoot apex

Associated team members :
Olivier Hamant
Antoine Chevallier
Leia Colin
Charlotte Kirchhelle
Claire Lionnet
Alice Malivert
Marjolaine Martin
Isaty Melogno
Shogo Takatani
Jan Traas

3. Mechanical identity

Beyond the cell cortex, we started to analyze the impact of mechanical signals on gene expression. We found that the expression of key transcription factors (CUC3 and STM) is in part under mechanical control.

STM expression in meristem boundaries, stress hotspots (Landrein et al., 2015)

The nexus between mechanical signals at the cell cortex and gene expression may involve different pathways. Recently, we started to analyze the role of nucleus deformation in gene expression.

We are also investighating the role of the RNA Polymerase-associated factor 1 complex (Paf1c), a central regulator of transcription, in development, at the nexus between transcriptional noise and developmental robustness. We found that Paf1c-dependent transcription contributes to the robustness of phyllotaxis and flower termination. Although at this stage it remains difficult to link mechanosensing with these phenotypes, these results open the possibility for crosstalks between transcriptional noise, mechanotransduction and development.

Severe indetermincay defects in the Paf1c mutant

Associated team members :
Olivier Hamant & Christophe Tréhin
Johanna Dickmann
Juan Alonso Serra
Marianne Lang
Claire Lionnet
Marjolaine Martin
Duy-Chi Trinh

4. Science and society

We are also involved in science-society projects, notably on the environmental question sustainability and in several art-science projects. This notably includes the question of robustness.

The industrial agricultural model is based on a reduced quantity of genetically homogeneous varieties. In wheat, many species have contributed to the human diet since their domestication, but only certain pure lines of common wheat (Triticum aestivum) and durum wheat (T. durum) are now widely distributed. However, they are not very robust to climate change, have low micronutrient contents and are the source of intolerance. However, there are so-called “old” or “marginal” cereals. Abandoned by industrial agriculture, these have escaped associated selection. Thus, they have retained resistance traits, genetic diversity allowing their adaptation and interesting nutritional properties. Many varieties of small (T. monococcum), medium (T. dicoccum), and great spelled (T. spelta), closely related to soft and hard wheats, are part of these cereals. Now cultivated on a small scale, they appear to be good candidates for restoring a certain biodiversity in wheat.

Emmer grown at CRBA, Charly

The case of pollard trees or trunks, of which all the upper and lateral branches are pruned, illustrates the remarkable plant plasticity. The trunks indeed develop a characteristic phenotype with an increased trunk thickness and massive repetitions of shoots. Since the Neolithic, this rural practice has been an essential source of renewable wood and fodder, before declining with the advent of the modern era. Conventional agriculture is increasingly under the spotlight for its negative externalities (greenhouse gas emissions,
pollution, dependence on fossil fuels, loss of biodiversity, desertification ...) and for its low resilience. From this perspective, the pollards find a new agronomic relevance.

Pollard tree drawing

Last, we are also investigating the potential use of plant cell walls as metamaterials, notably their phononic properties. There are numerous examples of animals that manipulate visible light for functional purposes, such as insect wings made of hexagon arrays of cone-shaped nanopillars that provide a graded refractive index for camouflage. Such photonic structures can be mimicked to find innovative solutions for light control in nano- to microstructures. In contrast, there has been no observation of phonon-based biological functions at the supramolecular scale, making phononic bioinspired strategies inoperative. Thomas Dehoux team has recently demonstrated that biological composites in the form of decellularized plant cell scaffolds can behave as phononic materials, including forbidding the propagation of elastic waves in select frequency ranges (i.e. band gaps). This opens the possibility for biobased phononic materials (BPM).

Propagation of an acoustic wave in an onion epidermal peel (T. Dehoux team)

Associated team members :
Olivier Hamant
Sofia Correa
Sana Dieudonné
Marianne Lang

To explore more science & society questions, visit the Michel Serres Institute website : https://institutmichelserres.fr/

Articles de cette rubrique

  • Publications

    , par Mechanodevo

    2020 Hamant O*, Saunders TE* (2020) Shaping Organs : Shared Structural Principles Across Kingdoms. Annu Rev Cell Dev Biol. Long Y*, Cheddadi I, Mosca G, Mirabet V, Dumond M, Kiss A, Traas J, Godin C, Boudaoud A* (2020) Cellular Heterogeneity in Pressure and Growth Emerges from Tissue Topology (...)

  • Projet de l’équipe

    , par yfesseli

    L’architecture de la plante dépend pour une grande partie de groupes de cellules souches appelés méristèmes, qui initient les organes et en déterminent la position.
    Les méristèmes définissent donc un certain nombre de traits d’intérêt agronomique évident, d’où l’importance d’étudier et comprendre leur (...)