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Compétences de recherches

Je m’intéresse aux réponses développementales et adaptatives des plantes horticoles (d’ornement et maraichères) à leur environnement abiotique. J’étudie en particulier les réponses à la lumière, à la restriction hydrique et à la stimulation mécanique par des analyses phénotypiques, physiologiques, moléculaires et épigénétiques. L’étude de la mémoire, du priming et de la désensibilisation des plantes à ces facteurs est centrale dans mon questionnement scientifique. Au-delà de l’analyse des mécanismes mis en œuvre, l’objectif finalisé de mes travaux porte sur l’exploitation des réponses de ces plantes pour accroître leur qualité en terme de forme (ramification, compacité) et d’adaptation à des environnements contraignants (milieu urbain, restriction des ressources en eau). Mes travaux contribuent aussi à l’élaboration d’itinéraires techniques de production plus durables et alternatifs aux traitements chimiques (nanifiants, pesticides), par l’exploitation des réponses aux facteurs abiotiques.

Je suis actuellement

• Responsable de l’Equipe STREMHO
• Directrice de l’Ecole Doctorale VAAME 642 (https ://ed-vaame.doctorat-paysdelaloire.fr)
• Directrice du LabCom MATCH (Méthodes Alternatives aux Traitements Chimiques de l’Hortensia) ANR 2019-2024 en collaboration avec l’entreprise Hortensia France
• Pilote de la tâche « Priming » du projet bi-régional CLIMATVEG (2021-2025)

Production scientifique

Lien vers mon profil Scholar Google

https://scholar.google.fr/citations?hl=fr&view_op=list_works&gmla=AJsNF5qlpixn3UAqtXXriiA0ApfV7EURs2lqk02LhdtPfl5E1Gkg7eTHohmbaiOu5vWQZyGW2NxhuAD0ShlJ33girrdpX0R_z1EVHq7hEXlgbs&usr=eAG1sSEAAAAJ

Publications sur thèmes de recherche actuels

LEY-NGARDIGAL B, ROMAN H, BROUARD N,HUCHE -THELIER L, GUERIN V AND LEDUC N. 2023. Recurrent symmetrical bendings cause dwarfing in Hydrangea through spatial molecular regulation of xylem cell walls. Frontiers in Plant Science (2023), doi.org/10.3389/fpls.2023.1268272. I.F 6,63

LEY-NGARDIGAL B, PELLETIER S, GUERIN V, HUCHE-THELIER L, BROUARD N, ROMAN H, LEDUC N. Unraveling the dataset transcriptomic response of Hydrangea macrophylla stem to mechanical stimulation : De novo assembly and functionnal annotation. Data in Brief (2023)  doi.org/10.1016/j.dib.2023.109784. I.F 0,131

GUÉRIN V, ROMAN H, HUCHÉ-THÉLIER L, LEY-NGARDIGAL B, HERBOMMEZ E,  EVELEENS T. LEDUC N. Impact of fertilization level during flowering phase on blueness of Hydrangea sepals and plant visual quality. Acta Hortic. 1375. ISHS 2023. DOI 10.17660/ActaHortic.2023.1375.17

HUCHÉ-THÉLIER L, ROMAN H, BROUARD N, FEWOU R, EVELEENS T, GUÉRIN V, LEDUC N. No fertilization or reduced irrigation of hydrangea in autumn: an eco-friendly tool to favour leaf senescence without consequences on flowering quality Acta Hortic. 1375. ISHS 2023. DOI 10.17660/ActaHortic.2023.1375.19

LEY-NGARDIGAL B, GUE RIN V, HUCHE -THE LIER L, BROUARD N,  EVELEENS T, ROMAN H, LEDUC N. Impact of mechanical stimulation in Hydrangea macrophylla. Acta Hortic. 1372. ISHS 2023. DOI 10.17660/ActaHortic.2023.1372.36
ROMAN H, GUÉRIN V, HUCHÉ-THÉLIER L, LEY-NGARDIGAL B, HERBOMMEZ E, EVELEENS T, LEDUC N. Effect of different Al supplies during vegetative phase on sepal blueing in hydrangea inflorescence. Acta Hortic. 1375. ISHS 2023. DOI 10.17660/ActaHortic.2023.1375.41

MALLET J, LAUFS P, LEDUC N, LE GOURRIEREC J 2021. Photocontrol of Axillary Bud Outgrowth by MicroRNAs: Current State-of-the-Art and Novel Perspectives Gained From the Rosebush Model. Frontiers in Plant Science (2021) doi.org/10.3389/fpls.2021.770363. I.F 6,63

PORCHER A, GUERIN V, LEDUC N, LEBREC A, LOTHIER J, VIAN A. Ascorbate-glutathione pathways, mediated by cytokinin, regulate H₂O₂ level in light control in rose bud burst. Plant Physiology 186: 910–928 (2021) IF 6.90

ADRIEN COROT, HANAÉ ROMAN, ODILE DOUILLET, HERVÉ AUTRET, MARIA-DOLORES PEREZ-GARCIA, SYLVIE CITERNE, JESSICA BERTHELOOT, SOULAIMAN SAKR, NATHALIE LEDUC AND SABINE DEMOTES-MAINARD. 2017 Cytokinins and Abscisic Acid Act Antagonistically in the Regulation of the Bud Outgrowth Pattern by Light Intensity.Frontiers in Plant Science 8,1724.doi:10.3389/fpls.2017.01724. I.F 4.29

ROMAN H, GIRAULT T, LE GOURRIEREC J, LEDUC N. 2017 In silico analysis of 3 expansin gene promoters reveals 2 hubs controlling light and cytokinins response during bud outgrowth. Plant Signaling & Behavior 12: 2, e1284725,DOI:10.1080/15592324.2017.1284725. I.F 1.07

ROMAN H, GIRAULT T, BARBIER F, PÉRON T, BROUARD N, PĚNČÍK A, NOVÁK O, VIAN A, SAKR S, LOTHIER J, LE GOURRIEREC J, LEDUC N. 2016. Cytokinins Are Initial Targets of Light in the Control of Bud Outgrowth. Plant Physiology; 172(1):489-509. doi: 10.1104/pp.16.00530. I.F 6.45

HUCHÉ-THÉLIER L, CRESPEL L, LE GOURRIEREC J, MOREL PH, SAKR S, LEDUC N. 2016 Light Signaling and plant responses to blue and UV Radiations: Perspectives For applications in horticulture. Environmental and Experimental Botany 121: 22-38. doi.org/10.1016/j.envexpbot.2015.06.009. I.F 4.37

DEMOTES-MAINARD S, PÉRON T, COROT A, BERTHELOOT J, LE GOURRIEREC J, PELLESCHI-TRAVIER S, CRESPEL L, MOREL PH, HUCHÉ-THÉLIER L, BOUMAZA R, VIAN A, GUÉRIN V, LEDUC N, SAKR S. 2016 Plant Responses to red and far-red lights, applications in horticulture. Environmental and Experimental Botany 121: 421. doi.org/10.1016/j.envexpbot.2015.05.010. I.F 4.37

RAMEAU C, BERTHELOOT J, LEDUC N, ANDRIEU B, FOUCHER F, SAKR S. 2015 Multiple pathways regulate shoot branching. Frontiers in Plant Sciences 5: 1-15. doi: 10.3389/fpls.2014.00741. I.F 4.52

BARBIER F, PÉRON T, LECERF M, PEREZ-GARCIA MD, BARRIÈRE Q, ROLČÍKJ, BOUTET-MERCEY S, CITERNE S, LEMOINE R, PORCHERON B, ROMAN H, LEDUC N, LE GOURRIEREC J, BERTHELOOT J, SAKR S. 2015 Sucrose is an early modulator of the key hormonal mechanisms controlling bud outgrowth in Rosa hybrid. Journal of Experimental Botany 66: 2569-2582. doi:10.1093/jxb/erv047. I.F 5.83

DJENNANE S, HIBRAND-SAINT OYANT L, KAWAMURA K, LALANNE D, LAFFAIRE M, THOUROUDE T, CHALAIN S, SAKR S, BOUMAZA R, FOUCHER F, LEDUC N 2014 Impacts of light and temperature on shoot branching gradient and expression of strigolactone synthesis and signalling genes in rose. Plant Cell and Environment 37, 742–757. doi: 10.1111/pce.12191. I.F 6.17

SANTAGOSTINI P., DEMOTES-MAINARD S; HUCHE-THELIER L.; LEDUC N; BERTHELOOT J.; GUÉRIN V.; BOURBEILLON J.; SAKR S.; BOUMAZA R. 2014 Assessment of the visual quality of ornamental plants: comparison of three methodologies in the case of the rosebush. Scientia Horticulturae 168: 17-26. doi.org/10.1016/j.scienta.2014.01.011. I.F 1.62

RABOT A, PORTEMER V, PERON T, MORTREAU E, LEDUC N, HAMAMA L, COUTOS-THEVENOT P, ATANASSOVA R, SAKR S, LE GOURRIEREC J. 2014. INTERPLAY OF Sugar, Light and Gibberellins in Expression of Rosa hybrida Vacuolar Invertase 1 Regulation.Plant Cell Physiol. 55(10): 1734–1748. doi: 10.1093/pcp/pcu106. I.F 4.76

LEDUC N, ROMAN H, BARBIER F, PERON T, HUCHE-THELIER L, LOTHIER J, DEMOTES-MAINARD S, SAKR S. 2014. Light Signaling in Bud Outgrowth and Branching in Plants. Plants: 3 (2):223-50. doi:10.3390/plants3020223.Non indexé. Cité 13 fois.

RABOT A, HENRY C, BEN BAAZIZ K, MORTREAU E, AZRI W, LOTHIER J, HAMAMA L, BOUMAZA R, LEDUC N, PELLESCHI-TRAVIER S, LE GOURRIEREC J, SAKR S. 2012 Insight into the role of sugars in bud burst under light in the rose. Plant and Cell Physiology 53:1068-1082. I.F=4.06

CHOUBANE D, RABOT A, MORTREAU E, LEGOURRIEREC J, PÉRON T, F, AHCÈNE Y, PELLESCHI-TRAVIER S, LEDUC N, HAMAMA L, SAKR S. (2012) Photocontrol of bud burst involves gibberellin biosynthesis in Rosa sp. J Plant Physiol 169:1271-1280; I.F =2.83

ABIDI F., GIRAULT T., DOUILLET O., GUILLEMAIN G., SINTES G.,LAFFAIRE M., BEN AHMED H., SMITI S., HUCHE-THELIER L., LEDUC N. (2012) Blue light effects on Rose photosynthesis and photomorphogenesis. Plant Biology 15: 67–7 doi.org/10.1111/j.1438-8677.2012.00603.x; I.F =2.15

PERON T, VERONESI C, MORTREAU E,, POUVREAU JB, THOIRON S, LEDUC N, DELAVAULT P, SIMIER P. (2012) Role of the sucrose synthase encoding PrSus1 gene in the development 1 of the parasitic  plant Phelipanche ramosa L. (Pomel).  Molecular plant- microbe interaction 25, 402–411. I.F =3.59

HENRY C., RABOT A., LALOI M., MORTREAU E., SIGOGNE M., LEDUC N., LEMOINE R., SAKR S., VIAN A., PELLESCHI-TRAVIER S.,  2011. Regulation of RhSUC2, a sucrose transporter, is correlated with the light control of bud burst in Rosa sp. Plant, Cell and Environment 34: 1776-1789. I.F=5.41

GIRAULT T., ABIDI F., SIGOGNE M., PELLESCHI-TRAVIER S., BOUMAZA R., SAKR S., LEDUC N., 2010. Sugars are under light control during bud burst in Rosa sp. Plant, Cell and Environment, 33:1339-1350. I.F=5.41

BOUMAZA R., HUCHE-THELIER L., DEMOTES-MAINARD S., LE COZ E., LEDUC N.,PELLESCHI-TRAVIER S., QANNARI EM, SAKR S., SANTAGOSTINI P.,SYMONEAUX R., GUERIN V.  2010. Sensory profiles and preference analysis in ornamental horticulture: The case of the rosebush. Food Quality and Preference  21 : 987–997. I.F=3.65

GIMENO-GILLES C, LELIEVRE E, VIAU L, MALIKGHULAM M,GAMAS P, NIEBEL A, LEDUC N, LIMAMI A (2009) ABA Mediated Inhibition of Germination is related to the Inhibition of Genes Encoding Cell Wall Biosynthetic and Architecture Modifying Enzymes and Structural Proteins in Medicago truncatula Embryo Axis. Molecular Plant  2 (1): 108-119 . I.F=9.33

GIRAULT T, BERGOUGNOUX V, COMBES D, VIEMONT JD, LEDUC N, 2008. Light controls shoot meristem organogenic activity and leaf primordia growth during bud burst in Rosa sp. Plant Cell and Environment 31:1534-1544. I.F=5.41