Marie-Cécile CAILLAUD (PI)

Lipid signaling in plant cell division and organogenesis

The coordination of cell division is a crucial process during the development of multicellular organisms. Particularly, in organisms where cells are not migrating, like plants, organs, and tissue patterns are highly correlated to the pattern of cell division. Thus, in plants, organogenesis and morphogenesis are heavily dependent on establishing a correct cell division plane. After the separation of the chromosomes, the mother cell will be split in two, giving birth to two daughter cells. The splitting process is called cytokinesis (Fig. 1). In plants, cytokinesis can be broken down into three processes : (i) the establishment of the “cortical division zone” which can be defined as the future site of cell division (ii) the formation of a membrane-cell wall structure, called the cell plate, that expands towards the plasma membrane of the mother cell through (iii) the insertion of the cell plate to the exact site of division at the plasma membrane to eventually fuse with it. At the end of the cytokinesis, the fully extended cell plate eventually gives rise to the newly formed apicobasal plasma membrane : the correct positioning of this polarity axis through the spatiotemporal coordination of the cell plate fusion is, therefore, a prerequisite to root developmental patterning.

Currently, neither the lipid identity at the cell plate nor the molecular mechanisms involved in the guidance and fusion of the cell plate with the plasma membrane are well understood. Whether specific lipids can mark the cortical division zone as well is not known but several lipid mutants defective in phosphoinositides display cytokinesis alterations. Phosphoinositides-mediated cytokinesis probably occurs through the recruitment -and thereby the function- of proteins such as cytoskeleton regulators. Our current knowledge is mainly built on the competencies and tools we have established―and successfully deployed―to further investigate the molecular bases and importance of anionic lipid in cell division orientation.


1) How the anionic lipids and theirs downstream effectors localized during cell division ?
Collaborative ANR PRC PlantScape project (ANR-20-CE13-0026-02)

2) How the lipid homeostatic network controls cell plate fusion at the plasma membrane ?
Collaborative project (submitted)

3) How to build a functional plasma membrane after the cytokinesis ?
With Camila Goldy, SPLIT project (EMBO fellowship 2021)

4) How to building up cell-cell continuity during plant cell division ?
Collaborative ANR PRC DIVCON project (ANR-21-CE13-0016-03)

5) What is defining the positioning of the cell division in a plant cell embedded in its tissue ?
Pluri-disciplinary MechaJunc project, in collaboration with Olivier Ali (RDP, ENS Lyon).

Results gained from the ongoing research will provide a better understanding of the signaling mechanisms coupling PIP-metabolism and cell division, the latest being fundamental in regulating organismal growth.


  • ANR INTERPLAY (ANR-16-CE13-0021)
  • ANR PlantScape (ANR-20-CE13-0026-02)
  • ANR DIVCON (ANR-21-CE13-0016-03)


  • VINCENT BAYLE (Engineer, CNRS)
  • ALEXIS LEBECQ (PhD student, ENS)
  • CAMILA GOLDI (EMBO Longterm Fellow)


  • MEHDI DOUMANE (PhD Student- 02/2020)
  • AMELIE BAUER (Master Student in 2019)



  • Doumane, M., M.-C. Caillaud* and Y. Jaillais* (in press) “Experimental Manipulation of Phosphoinositide lipids, from cells to organisms” Trends in Cell Biology.
  • Lebecq, A., A. Fangain, A. Boussaroque and M.-C. Caillaud (in press). "Dynamic Apical-Basal Enrichment of the F-Actin during Cytokinesis in Arabidopsis Cells Embedded in their Tissues." Quantitative Plant Biology.
  • Caillaud, M. C., (2022) Methods to visualize the Actin Cytoskeleton During Plant Cell Division, (Methods in Molecular Biology), edition Plant Cell Division 10.1007/978-1-0716-1744-1
  • Caillaud, M.-C., (2022) Plant cell division : methods and protocols. Preface, (Methods in Molecular Biology), edition Plant Cell Division 10.1007/978-1-0716-1744-1


  • Doumane, M., A. Lebecq, A. Fangain, V. Bayle, F. Rozier, M. d. M. Marquès-Bueno, R. P. Boisseau, M. L. A. Simon, L. Armengot, Y. Jaillais and M.-C. Caillaud (2021). "The Arabidopsis SAC9 Enzyme defines a cortical population of early endosomes and restricts PI(4,5)P2 to the Plasma Membrane."doi : (in revision for Elife)
  • Saile, S. C., F. M. Ackermann, S. Sunil, J. Keicher, A. Bayless, V. Bonardi, L. Wan, M. Doumane, E. Stöbbe, Y. Jaillais, M.-C. Caillaud, J. L. Dangl, M. T. Nishimura, C. Oecking and F. El Kasmi (2021). "Arabidopsis ADR1 helper NLR immune receptors localize and function at the plasma membrane in a phospholipid dependent manner." New Phytologist 232(6) : 2440-2456.
  • Doumane, M., Lebecq, A., Colin, L., Fangain, A., Stevens, F. D., Bareille, J., ... & Caillaud, M. C. (2021). Inducible depletion of PI(4,5)P2 by the synthetic iDePP system in Arabidopsis. Nature Plants, 7(5), 587-597.
Cutting down on phospholipids
  • Noack LC, Bayle V, Armengot L, Roer F, Mamode-Cassim A, Stevens FD, Caillaud MC, Munnik T, Mongrand S, Pleskot R, Jaillais Y. (2021) A nanodomain-anchored scaffolding complex is required for the function and localization of phosphatidylinositol 4-kinase alpha in plants. Plant Cell.
    doi : 10.1093/plcell/koab135


  • Saile, S. C., F. M. Ackermann, S. Sunil, A. Bayless, E. Stöbbe, V. Bonardi, L. Wan, M. Doumane, Y. Jaillais, M.-C. Caillaud, J. L. Dangl, M. T. Nishimura and F. El Kasmi (2020). "Coiled-coil and RPW8-type immune receptors function at the plasma membrane in a phospholipid dependent manner." bioRxiv : 2020.2011.2018.388520.
  • Noack, L., V. Bayle, L. Armengot, F. Rozier, A. Mamode-Cassim, F. Stevens, M. C. Caillaud, T. Munnik, S. Mongrand and Y. Jaillais (2020). "A nanodomain anchored-scaffolding complex is required for PI4Kα function and localization in plants." bioRxiv : 2020.2012.2008.415711.
  • Doumane, M., L. Colin, A. Lebecq, A. Fangain, J. Bareille, O. Hamant, Y. Belkhadir, Y. Jaillais and M.-C. Caillaud (2020). "iDePP : a genetically encoded system for the inducible depletion of PI(4,5)P2 in Arabidopsis thaliana." bioRxiv : 2020.2005.2013.091470.
  • Doumane, M. and M. C. Caillaud (2020). "Assessing Extrinsic Membrane Protein Dependency to PI4P Using a Plasma Membrane to Endosome Relocalization Transient Assay in Nicotiana benthamiana." Methods Mol Biol 2177 : 95-108.


  • Caillaud, M.-C. (2019) Anionic Lipids : a Pipeline Connecting Key Players of Plant Cell Division. Frontiers in Plant Sciences doi:10.3389/fpls.2019.00419


  • Platre, M.P., Noack, L.C., Doumane, M., Bayle, V., Simon, M.L.A., Maneta-Peyret, L., Fouillen, L., Stanislas, T., Armengot, L., Pejchar, P., Caillaud, M.C., Potocky, M., Copic, A., Moreau, P., and Jaillais, Y.2018. A combinatorial lipid code shapes the electrostatic landscape of plant endomembranes. Dev Cell 21 ;45(5):645-480.e11


  • Doumane M, Lionnet C, Bayle V, Jaillais Y, Caillaud MC#. Automated Tracking of Root for Confocal Time-lapse Imaging of Cellular Processes. Bio Protoc. 2017 Apr 20 ;7(8). pii : e2245. doi : 10.21769/BioProtoc.2245. PMID : 28459086


  • Simon ML*, Platre MP*, Marquès-Bueno MM, Armengot L, Stanislas T, Bayle V, Caillaud MC#, Jaillais Y#. A PtdIns(4)P-driven electrostatic field controls cell membrane identity and signalling in plants. Nature Plants. 2016 Jun 20 ;2:16089. doi : 10.1038/nplants.2016.89. PMID : 27322096
  • Caillaud, M.-C., (2016) Plant cell division : methods and protocols. Preface, (Methods in Molecular Biology, 1370) hal-02799635v1

2014 and before

  • Caillaud MC*, Wirthmueller L*, Sklenar J, Findlay K, Piquerez SJ, Jones AM, Robatzek S, Jones JD, Faulkner C. The plasmodesmal protein PDLP1 localises to haustoria-associated membranes during downy mildew infection and regulates callose deposition. PLoS Pathog. 2014 Nov 13 ;10(10):e1004496.
  • Caillaud MC, Paganelli L, Lecomte P, Deslandes L, Quentin M, Pecrix Y, Le Bris M, Marfaing N, Abad P, Favery B. 2009. Spindle assembly checkpoint protein dynamics reveal conserved and unsuspected roles in plant cell division. PLoS One 4 : e6757
  • Caillaud, M. C., P. Lecomte, F. Jammes, M. Quentin, S. Pagnotta, E. Andrio, J. de Almeida Engler, N. Marfaing, P. Gounon, P. Abad and B. Favery (2008). "MAP65-3 microtubule-associated protein is essential for nematode-induced giant cell ontogenesis in Arabidopsis." Plant Cell 20(2) : 423-437.

Articles de cette rubrique

  • CV Marie-Cécile Caillaud

    , par Annamaria Kiss, MC Caillaud

    Curriculum vitæ
    Family name, First name : Caillaud Marie-Cécile Researcher unique identifiers : ORCID : 0000-0002-0348-7024 Researcher ID : G-9320-2018 Date of birth : 14/10/1982 Nationality : French
    URL for web site : Cell Signalling and Endocytosis
    2019 (...)