Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal

Home page

Françoise LAURANS (Research Engineer)

Françoise LAURANS
Molecular Physiology of Wood Formation Team (BOIS) - Histology, Cytology and Anatomy of Wood


  • Research Engineer
  • Co-leader of the research team « Molecular Physiology of Wood Formation »
  • Manager of BioForA Histo-cytology Laboratory
  • Manager of LICA imaging technical pole


Ph.D in Plant Science at Orléans University (France), defended on January 21, 1997.

Speciality: Plant Biology and Physiology

Subject: Histological definition and molecular approach of poplar-rust interactions (Populus deltoides x P. Nigra cv. "OGY"/Melampsora larici-populina races E1 and E2). Spatial and temporal study of the expression of plant defence genes during the interaction.

Work carried out at the Station d'Amélioration des Arbres Forestiers, INRA, Orléans (France).

Post graduate degree in Forest Biology (University of Nancy I, France)

Speciality: Tree physiology: cellular and molecular approaches

Subject: Development of a transient expression system based on protoplast electroporation and biolistic, in hybrid poplar (Populus tremula x P. Alba) and larch (Larix x leptoeuropaea).

Professional experiences

Sept. 2000 - Fév.2002

Research Engineer. Aventis CropScience.
Dargoire Research Centre. Fungicide Biology Department. Lyon 9° (France).
Coordination of research work on mycotoxin-producing fusarium head blight

Oct.1998 - Août 2000

Teaching and Research Assistant,  Claude Bernard-Lyon I University ( France)  
Department of Biology
Researcher at the Laboratory of Microbial Ecology (UMR CNRS 5557) of Claude Bernard-Lyon I University (France)

Janv.1998 - Juin 1997

Post-Doctoral Experience. Station d'Amélioration des Arbres Forestiers, INRA,
Orléans (France).
Genetic mapping in poplar. Use of genetic markers to identified Quantitative Trait Loci (QTL) and development of markers applicable for Marked Assisted Selection (MAS).

Fév.1997 - Sep.1997

Post-Doctoral Position, Laurentian Forestry Centre (LFC), Biotechnology laboratory
Canadian Forest Service, Québec, QC (Canada).
Expression study of genes induced by biotic stresses and involved in the defense response of forest trees to pathogen attacks.

Research topics / Skills and expertise

Research topics :

  • Identification of molecular mechanisms involved in wood formation.Identification of molecular mechanisms at the origin of tension stress in the cell walls of wood fibres.
  • Characterization of secondary cell wall composition of poplar wood fibres by multi-scale and multimodal imaging.
  • Identification of gene networks involved in the complex biological process of wood formation, using micro-genomic approaches (laser microdissection, single cell sequencing).
  • Phenotypic characterization of genetically-modified poplars at the cellular level
  • Applicability of new genome-editing techniques to poplar genetic engineering

Skills and expertise : 

  • Sample preparation for microscopy: Microtomy, Cryotomy, Ultramicrotomy
  • In-situ localization : Immunolocalization, in situ hybridization, laser microdissection
  • Photonic, confocal, transmission and scanning electron microscopy, ATR-FTIR microspectroscopy


  • Since October 2017 Co-supervision of Clément Cuello (PhD Student) "Toward designing a model for secondary cell wall construction in poplar wood fibres ".  Methodological support for ATR-FTIR, immunolocalization, laser microdissection and cell culture system.
  • Co-supervision of a Master II student, Paul Marchand 2017 "Characterization of poplar wood at the plant cell scale by ATR-FTIR spectroscopy". SC-Ecobiovalo, University of Normandie (France).
  • Co-supervision of 3 PhD students. Training for histological and in situ localization techniques, supervision for analysis and result interpretations:
  • Fernanda Guedes, 2010-2013 Orléans University. Toward identifying molecules responsible for the mechanical properties of poplar tension wood.
  • Amra Šećerović, 2013-2016 Orléans University. Identification and characterization of molecular players potentially responsible for the mechanical properties of tension wood.
  • France Dardeau, 2010-2013 Orléans University. Modulation of poplar manipulation by the woolly aphid, Phloeomyzus passerinii (Sign.), via host resistance and environment


Cuello, C ; Marchand, P ; Laurans, F ; Grand-Perret, C ; Lainé-Prade, V ; Pilate, G and Déjardin, A. (2020) ATR-FTIR microspectroscopy brings a novel insight into the study of cell wall chemistry at the cellular level. Front. Plant Sci., 21 February 2020 |

Montiel, G.; Gaudet, M.; Laurans, F.; Rozenberg, P.; Simon, M.; Gantet, P.; Jay-Allemand, C.; Breton, C. (2020) Overexpression of MADS-box Gene AGAMOUS-LIKE 12 Activates Root Development in Juglans sp. and Arabidopsis thaliana . Plants, 9, 444.

Guiguet, A., Ohshima, I., Takeda, S., Laurans, F., Lopez Vaamonde, C., Giron, D. (2019). Origin of gall-inducing from leaf-mining in Caloptilia micromoths (Lepidoptera, Gracillariidae). Scientific Reports, 9. , DOI : 10.1038/s41598-019-43213-7

Guedes F T P, Laurans F, Quemener B, Assor C, Laine-Prade V, Boizot N, Vigouroux J, Lesage-Descauses M-C, Leplé J-C, Déjardin A, Pilate G. (2017). Non-cellulosic polysaccharide distribution during G-layer formation in poplar tension wood fibers: abundance of rhamnogalacturonan I and arabinogalactan proteins but no evidence of xyloglucan. Planta, 246(5): 857-878

Van Acker R, Dejardin A, Desmet S, Vanholme R, Morreel K, Laurans F, Kim H, Santoro N, Foster C, Goeminne G, Légée F, Catherine Lapierre, Pilate G, Ralph J,  Boerjan W. (2017). Different routes of Conifer- and synapaldehyde and higher saccharification upon deficiency in the dehydrogenase CAD1. Plant Physiol, 175(3): 1018-1039

Baldacci-Cresp, Moussawi J, Leplé JC; Van Acker R, Kohler A, Candiracci J, Twyffels L, Spokevicius A, Bossinger G, Laurans F, Brunel N, Vermeersch M, Boerjan W, El Jaziri M, Baucher M. (2015). PtaRHE1, a (Populus tremula x P. alba) RING-H2 protein of the ATL family, has a regulatory role in secondary phloem development. Plant Journal. 82(6):978-990

Guet J, Fichot R, Lédée C, Laurans F, Cochard H, Delzon S, Bastien C, Brignolas F. (2015). Xylem resistance to cavitation is related to xylem structure but noy growth and water-use efficiency at the within population level in populus nigra L. Journal Experimental Botany, 66(15): 4643-4652.

Abedini R, Clair B, Poutahmasi K, Laurans F, Arnould O, (2015). Cell wall thickening in developing tension wood of artificially bent poplar trees. IAWA Journal, 36(1) : 44-57

Dardeau, F., Berthier, A., Feinard-Duranceau, M., Brignolas, F., Laurans, F., Lieutier, F., Salle, A. (2015). Tree genotype modulates the effects of water deficit on a plant-manipulating aphid. Forest Ecology and Management, 353, 118-125. , DOI : 10.1016/j.foreco.2015.05.037

Dardeau, F., Deprost, E., Laurans, F., Lainé, V., Lieutier, F., Sallé, A. (2014). Resistant poplar genotypes inhibit pseudogall formation by the wooly poplar aphid, Phloeomyzus passerinii Sign. Trees, 28 (4), 1007 - 1019. , DOI : 10.1007/s00468-014-1014-1

Dardeau, F., Pointeau, S., Ameline, A., Laurans, F., Cherqui, A., Lieutier, F., Salle, A. (2014). Host manipulation by a herbivore optimizes its feeding behaviour. Animal Behaviour, 95, 49 – 56. , DOI : 10.1016/j.anbehav.2014.06.002

Yoshinaga, A., Kusumoto, H., Laurans, F., Pilate, G., Takabe, K. (2012). Lignification in poplar tension wood lignified cell wall layers. Tree Physiology (Oxford Academic), 32 (9), 1129-1136. , DOI : 10.1093/treephys/tps075

Pointeau, S., Ameline, A., Laurans, F., Salle, A., Rahbé, Y., Bankhead-Dronnet, S., Lieutier, F. (2012). Exceptional plant penetration and feeding upon cortical parenchyma cells by the woolly poplar aphid. Journal of Insect Physiology, 58 (6), 857-866. , DOI : 10.1016/j.jinsphys.2012.03.008

Dejardin, A., Laurans, F., Arnaud, D., Breton, C., Pilate, G., Leplé, J.-C. (2010). Wood formation in Angiosperms. Comptes Rendus. Biologies, 333 (4), 325-334. , DOI : 10.1016/j.crvi.2010.01.010

Fichot, R., Barigah, T. S., Chamaillard, S., Le Thiec, D., Laurans, F., Cochard, H., BRIGNOLAS, F. (2010). Common trade-offs between xylem resistance to cavitation and other physiological traits do not hold among unrelated Populus deltoidesx Populus nigra hybrids. Plant, Cell and Environment, 33 (9), 1553-1568. , DOI : 10.1111/j.1365-3040.2010.02164.x

Serres-giardi, L., Dufour, J., Russell, K., Buret, C., Laurans, F., Santi, F. (2010). Natural triploids of wild cherry. Canadian Journal of Forest Research, 40 (10), 1951–1961. , DOI : 10.1139/X10-100

Fichot, R., Laurans, F., Monclus, R., Moreau, A., Pilate, G., Brignolas, F. (2009). Xylem anatomy correlates with gas exchange, water-use efficiency and growth performance under contrasting water regimes : evidence from Populus deltoides x Populus nigra hybrids. Tree Physiology (Oxford Academic), 29 (12), 1537-1549. , DOI : 10.1093/treephys/tpp087

Decou, R., Lhernould, S., Laurans, F., Sulpice, E., Leplé, J.-C., Dejardin, A., Pilate, G., Costa, G. (2009). Cloning and expression analysis of a wood-associated xylosidase gene (ptaBXL1) in poplar tension wood. Phytochemistry, 70 (2), 163-172. , DOI : 10.1016/j.phytochem.2008.12.019

Morabito, D., Caruso, A., Carpin, S., Carli, C., Laurans, F., Depierreux, C., Kahlem, G., Label, P. (2006). Cambial activity of Populus tremula x Populus alba clone 717-1B4 in hydroponic culture. Canadian Journal of Forest Research, 36 (3), 719-724. , DOI : 10.1139/X05-287

Laurans, F., Dejardin, A., Leple, J.-C., Pilate, G. (2006). Physiologie de la formation des parois de fibres de bois. Revue des Composites et des Matériaux Avancés, 16 (1), 25-40.

Pervieux, I., Bourassa, M., Laurans, F., Hamelin, R., Séguin, A. (2004). A spruce defensin showing strong antifungal activity and increased transcript accumulation after wounding and jasmonate treatments. Physiological and Molecular Plant Pathology, 64 (6), 331-341. , DOI : 10.1016/j.pmpp.2004.09.008

Lafarguette, F., Leple, J.-C., Dejardin, A., Laurans, F., Costa, G., Lesage Descauses, M.-C., Pilate, G. (2004). Poplar genes encoding fasciclin-like arabinogalactan proteins are highly expressed in tension wood. New Phytologist, 164 (1), 107-121. , DOI : 10.1111/j.1469-8137.2004.01175.x

Pilate, G., Chabbert, B., Cathala, B., Yoshinoga, A., Leple, J.-C., Laurans, F., Lapierre, C., Ruel, K. (2004). Lignification and tension wood. Comptes Rendus. Biologies, 327 (9-10), 889-901. , DOI : 10.1016/j.crvi.2004.07.006

Pilate, G., Dejardin, A., Laurans, F., Leple, J.-C. (2004). Tension wood as a model for functional genomics of wood formation. New Phytologist, 164 (1), 63-72. , DOI : 10.1111/j.1469-8137.2004.01176.x

Laurans, F., Pépin, R., Gay, G. (2001). Fungal auxin overproduction affects the anatomy of Hebeloma cylindrosporum-pinus pinaster ectomycorrhizas. Tree Physiology (Oxford Academic), 21 (8), 533-540. , DOI : 10.1093/treephys/21.8.533

Clergeot, P.-H., Gourgues, M., Cots, J., Laurans, F., Latorse, M.-P., Pépin, R., Tharreau, D., Notteghem, J.-L., Lebrun, M.-H. (2001). PLS1, a gene encoding a tetraspanin-like protein, is required for penetration of rice leaf by the fungal pathogen Magnaporthe grisea. Proceedings of the National Academy of Sciences of the United States of America, 98 (12), 6963-6968. , DOI : 10.1073/pnas.111132998

Laurans, F., Pilate, G. (1999). Histological aspects of a hypersensitive response in Poplar to Melampsora larici-populina. Phytopathology, 89 (3), 233-238. , DOI : 10.1094/PHYTO.1999.89.3.233