A. Morvan-Bertrand

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A. Morvan-Bertrand

Annette Morvan-Bertrand

 

A. Morvan-Bertrand

Associate professor

Research team: EcoPEPS

e-mail: annette.bertrand@unicaen.fr

Tel: +33(0)2 31 56 53 03

Location: CAMPUS 1, Building J3, Door IR 066

Address: Université de Caen,
CS 14032 Esplanade de la paix,
14032 CAEN CEDEX 5, France

Research activities

Fructans are fascinating soluble fructose polymers that are synthesized by about 15% of angiosperms and by some microorganisms. In addition to their role as a carbon reserve, they contribute to resistance to abiotic stresses and also, more surprisingly, to plant immunity and plant-microorganism interactions. However, the mechanisms that govern these different functions are poorly understood.

My research objectives are to contribute to elucidating these mechanisms and more broadly to evaluating and understanding how the presence of fructans modifies the interactions between organisms, from the scale of the plant to that of the grassland.

In the context of climate change and the development of agroecology, I am particularly interested in studying,

  • the roles of fructans in plant drought resistance and in plant-microorganism interactions within the phyllosphere and rhizosphere,
  • the contribution of carbohydrate metabolism of plant species to forage quality and carbon storage in grassland.

 

Current programs

BIOSTIM-ALMAP - 2022-2025 - Interest in algal biostimulants for the management of vegetable crops and grasslands in the context of climate change and agro-ecological transition: development of bioassays, identification of new biostimulants, field validation and understanding of action mechanisms. Founded by Regional Council of Normandy and the European agricultural fund for rural development (EAFRD) (Coordination M-P. Prud'homme, EVA, University of Caen Normandy).

CAnOPée - 2022-2026 - "Multi-scale approach to the services provided by a quality-labeled dairy chain: contribution of new indicators"  ANR. Coordinatrice N. Desmasures (UR 4651 ABTE, Université Caen Normandie). 

BEER – 2019-2022 – ‘Bacteria, exudates and rhizodeposition’. Regional research project of the Networks of Interests of Normandy (RIN). Coordinator: B Pawlak GlycoMEV, University of Rouen Normandy).

ALGRIPLAST – 2019-2022 – ‘Valorization of derivatives and co-products of algae, cereals and vegetables for biodegradable applications in the circular economy’. Collaborative project Normandy Region. Coordinator: G Lebouteiller (NaturePlast, Ifs).

NPT – 2018-2021 – ‘Normandie Plant Technology’: Technological and methodological development to analyze plant growth, metabolic pathways and plant/microorganism interactions. Regional research project of the Networks of Interests of Normandy (RIN). Coordinator: JC Avice (EVA, University of Caen Normandy).

ALGOEVA – 2018-2021 – ‘Valorization of algae in Normandy for the agriculture and animal health sectors: Interest of macro-algae, their extracts and the bioactive molecules derived from them, in the fields of plant production and equine health’. Collaborative project Normandy Region. Coordinator: MP Prud’homme (EVA, University of Caen Normandy).

InvBio – 2017-2020 – ‘Biological invasion in Normandy’. Regional research project of the Networks of Interests of Normandy (RIN). Coordinator: M Aubert (EcoDiv, University of Rouen Normandy).

EPURE – 2017-2019 – ‘Enhancing Plant nutrition and health’. Regional research project of the Networks of Interests of Normandy (RIN). Coordinator: I Gattin (Aghyle, Unilasalle Rouen).

MICROPHYLLOS – 2016-2018 – ‘Microbial diversity of the grassland phyllosphere and identification of mechanisms involved in plant-microorganism interactions’. Emerging Normandy Region project. Co-coordinators: N Noiraud-Romy (FEAST, EVA), M Cretenet (MALIM-ABTE, University of Caen Normandy).

P2C – 2015-2019 – “the plant, a driver for capturing and transferring carbon to grassland soil”. ADEME ‘Reacctif’ project. Coordinator: A Morvan-Bertrand (EVA, University of Caen Normandy).

Supervision

PhD co-supervision

  • Juliette Sénécal (from 2023) : "Identification de bouquets de services écosystémiques rendus par les prairies en AOP laitières de Normandie" (co-supervision with S. Lemauviel-Lavenant)
  • Antoine Grandin-Courbet (from 2022) : "Amélioration de la résistance d'espèces prairiale et maraîchère au dérèglement climatique par des composés biostimulants d'origine algale : développement de bioessais et compréhension de mécanismes d'action" (co-supervision with M.P. Prud'homme)
  • Thi Ngoc Hanh Nguyen (2018-2022) : ‘Rhizosphere glycomolecules and plant defense’ (co-supervision with M. Vicré, M-P Prud’homme, M-L Follet-Gueye).
  • Caroline Kohler (2011-2015) : ‘Functioning of plant communities and carbon stocks in Normandy grasslands’ (co-supervision wih J-B Cliquet and S. Lemauviel-Lavenant).
  • Marouf Ould-Ahmed (2008-2012) : ‘Metabolism of fructans during development and after harvest in timothy (Phleum pratense L); identification and functional analysis of two genes encoding Fructan Exo-Hydrolases (FEHs) with invertase activity’ (co-supervision with M-P Prud'homme and P.Drouin, UQAT - Canada).
  • Jérémy Lothier (2005-2007) : « Fructan metabolism in Lolium perenne L.: Identification of two genes encoding fructan exohydrolases (FEHs) and study of the regulation of FEH activity by soluble sugars’ (co-supervision with M-P Prud'homme).
  • Bertrand Lasseur (2002-2006) : ‘Fructan metabolism in Lolium perenne L.: Cloning and functional expression of two fructosyltransferases; involvement in growth and tolerance to defoliation’ (co-supervision with  M-P Prud'homme).

Master’s degree

  • Mathias Coulon(2021) ‘Evaluation of the role of fructans in the protection of leaf meristems during drought: monitoring metabolism and scavenging of reactive oxygen species (ROS)’ (co-supervision with MP Prud’homme).
  • Théophile Modéna(2020) ‘Fructans and plant immunity in rapeseed, evaluation of the role of fructan exohydrolases’ (co-supervision with M-P. Prud’homme).
  • Paul Moulin(2020) ‘Contribution of fructans to drought resistance and evaluation of the biostimulating effect of algae extract’ (co-supervision with A. Grandin and M-P. Prud’homme).
  • Lethicia Magno Massuia de Almeida (2018) ‘Characterization of the memory effect of spring thermal peaks in rapeseed: impact on seed yield and quality’ (co-supervision with J-C Avice and S Brunel-Muguet).
  • Laëtitia Leclerc(2018) ‘Fructan exohydrolases (FEHs) and plant immunity: Induction of the Bn6&1-FEH gene in rapeseed (Brassica napus) roots treated with Bacillus subtilis peptidoglycans or salicylic acid (SA)’ (co-supervision with M-P. Prud’homme).
  • Lisa Le Levier(2017) ‘From biodiversity to the services provided by grassland ecosystems in Normandy’ (co-supervision with S. Lemauviel-Lavenant and S Diquelou).
  • Pierre-Jean Haupais (2013) « Functional characterization and study of the post-translational regulation of two Fructane exohydrolases-Invertases (FEH-INVs) in perennial ryegrass (Lolium perenne)’.
  • Nicolas Virlet(2010) ‘Linking the ecological strategies of eight grassland Poaceae with their storage and carbohydrate mobilization characteristics’ (co-supervision with S. Lemauviel-Lavenant).
  • Julien Lecourt(2010) ‘Functional characterization of two new isoforms of fructan exohydrolases (FEHs) in perennial ryegrass (Lolium perenne L.) and study of their transcriptional regulation after defoliation’ (co-supervision with M-P. Prud’homme).
  • José-Manuel Carli(2008) ‘Genetic variability of soluble sugar accumulation in perennial ryegrass, Lolium perenne L: comparison of morphology and carbohydrate composition of three varieties subjected to defoliation’.
  • Carole Becel(2006) ‘Contribution of reserves and new assimilates labeled with 13C and 15N to the leaf growth after defoliation in perennial ryegrass (Lolium perenne L.)’.
  • Jérémy Lothier(2004) « Sugar signals in the regulation of FEH activity after defoliation in perennial ryegrass, Lolium perenne L. ».

 

Publications

  • Nguyen TNH, Goux D, Follet-Gueye M-L, Bernard S, Padel L, Vicré M, Prud'homme M-P, Morvan-Bertrand A (2024) Generation and characterization of two new monoclonal antibodies produced by immunizing mice with plant fructans: New tools for immunolocalization of β-(2 → 1) and β-(2 → 6) fructans, Carbohydrate Polymers, 327, 121682 https://doi.org/10.1016/j.carbpol.2023.121682
  • Delamare J,  Brunel-Muguet S, Boukerb AM, Bressan M, Dumas L, Firmin S, Leroy F, Morvan-Bertrand A, Prigent-Combaret C, Personeni E. 2023. Impact of PGPR inoculation on root morphological traits and root exudation in rapeseed and camelina: interactions with heat stress. Physiologia Plantarum 175:e14058. https://doi.org/10.1111/ppl.14058
  • Delamare J, Brunel-Muguet S, Morvan-Bertrand A, Cantat O, Firmin S, Trinsoutrot-Gattin I, Le Franc L, Personeni, E. 2023. Thermopriming effects on root morphological traits and root exudation during the reproductive phase in two species with contrasting strategies: Brassica napus (L.) and Camelina sativa (L.) Crantz. Environmental and Experimental Botany, 210, 105318. https://doi.org/10.1016/j.envexpbot.2023.105318 
  • Magno Massuia de Almeida L, Coquemont-Guyot M, Elie N, Morvan-Bertrand A, Avice J-C, Mollier A, Brunel-Muguet S (2023) Repeated heat stress events during the reproductive phase impact the dynamic development of seeds in Brassica napus L. Plant Science, 327, 111559. https://doi.org/10.1016/j.plantsci.2022.111559
  • Morvan-Bertrand A, Van den Ende W, Prud’homme M-P (2023) Relation of plants with other kingdoms: the unique role of fructans. In The book of fructans (eds. W. Van den Ende, E.T. Öner), Elsevier, chapter 8, pp 127-145. https://doi.org/10.1016/B978-0-323-85410-8.00010-7
  • Nguyen TNH, Leclerc L, Manzanares-Dauleux M, Gravot A, Vicre M, Prud'homme M-P, Morvan-Bertrand A (2023) Fructan exohydrolases (FEHs) are upregulated by salicylic acid together with defense-related genes in non-fructan accumulating plants. Physiologia plantarum 175, e13975. https://doi.org/10.1111/ppl.13975
  • Cliquet JB, Roussel C, Lemauviel-Lavenant S, Morvan-Bertrand A, Cliquet JB (2022) Fate of recently fixed C in plant-soil monoliths from permanent grasslands. In Grassland at the heart of circular and sustainable food systems (eds. L. Delaby, R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux, F. Vertes and J.L. Peyraud), Grassland Science in Europe, vol. 27, pp. 119-121.
  • Dalmasso M, Morvan-Bertrand A, Chagnot C, Goux D, Sesboué A, Meuriot F, Schlusselhuber M, Prud’homme M-P, Elie N, Desmasures N, Launay F, Noiraud-Romy N, Cretenet M (2022) Microbiota diversity of the phyllosphere of pastures plants. In Grassland at the heart of circular and sustainable food systems (eds. L. Delaby, R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux, F. Vertes and J.L. Peyraud), Grassland Science in Europe, vol. 27, pp. 122-124.
  • Deroche B, Morvan-Bertrand A, Le Morvan A, Wyss U, Aoun M, Baumont R (2022) Prediction of water-soluble carbohydrate contents in hay from their content in fresh forage and drying time. In Grassland at the heart of circular and sustainable food systems (eds. L. Delaby, R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux, F. Vertes and J.L. Peyraud), Grassland Science in Europe, vol. 27, pp. 128-130.
  • Meuriot F, Noiraud-Romy N, Elie N, Goux D, Morvan-Bertrand A, Cretenet M, Dalmasso M, Chagnot C. Prud’homme M-P (2022) Phyllospheric bacteria alter sugar content and sucrose transporter expression in rye-grass. In Grassland at the heart of circular and sustainable food systems (eds. L. Delaby, R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux, F. Vertes and J.L. Peyraud), Grassland Science in Europe, vol. 27, pp. 222-224. 
  • Morvan-Bertrand A, Grandin A, Coulon M, Dubois V, Moulin P, Prud’homme M-P (2022) Involvement of fructans in the protection of leaf meristems of grassland species during drought. In Grassland at the heart of circular and sustainable food systems (eds. L. Delaby, R. Baumont, V. Brocard, S. Lemauviel-Lavenant, S. Plantureux, F. Vertes and J.L. Peyraud), Grassland Science in Europe, vol. 27, pp. 442-444.
  • Magno Massuia de Almeida L, Coulon M, Avice J-C, Morvan-Bertrand A, Bessoule J-J, Le Guédard M, Kim, TH, Niare A, Mollier A, Bertin N, Brunel-Muguet S. 2022. Effects of two-generational heat stress exposure at the onset of seed maturation on seed yield and quality in Brassica napus L. Environmental and Experimental Botany 195 :104788. https://doi.org/10.1016/j.envexpbot.2022.104788
  • Magno Massuia de Almeida L., Avice J-C, Morvan-Bertrand A., Wagner MH, González-Centeno M, Teissedre P-L., Bessoule J-J., Le Guédard M., Kim TH, Mollier A., Brunel-Muguet S. 2021. High temperature patterns at the onset of seed maturation determine seed yield and quality in oilseed rape (Brassica napus L.) in relation to sulphur nutrition. Environmental and Experimental Botany 185 :104400. https://doi.org/10.1016/j.envexpbot.2021.104400
  • Volaire F, Morvan-Bertrand A, Prud’homme M-P, Benot M-L, Augusti A, Zwicke M, Roy J, Landais D, Picon-Cochard C, 2020. The resilience of perennial grasses under two climate scenarios is correlated with carbohydrate metabolism in meristems, Journal of Experimental Botany 71 :370-385. https://doi.org/10.1093/jxb/erz424
  • Kohler C, Morvan-Bertrand A., S. Lemauviel-Lavenant , Gallard Y., Cliquet J-B. 2020. Comparaison de l’impact de deux méthodes de rénovation d’une prairie du domaine expérimental INRAE du Pin-au-Haras sur la productivité et l’évolution des stocks de Carbone du sol : le resemis et le sursemis. Fourrages 243:31-37. https://afpf-asso.fr/revue/non-thematique-260?a=2263
  • Kohler C, Morvan-Bertrand A, Cliquet J-B, Klumpp K, Lemauviel-Lavenant S. 2020. Tradeoff between the Conservation of Soil C Stocks and Vegetation Productivity in Temperate Grasslands. Agronomy 10 :1024. https://doi.org/10.3390/agronomy10071024
  • Bernard L, Decau M-L, Morvan-Bertrand A, Lavorel S, Clément J-C. 2020. Water-Soluble Carbohydrates in Patzkea paniculata (L.): a plant strategy to tolerate snow pack reduction and spring drought in subalpine grasslands. Plant Biology 22 :441–449. https://doi.org/10.1111/plb.13081
  • Tasset E, Morvan-Bertrand A, Amiaud B, Cliquet J-B, Louault F, Klumpp K, Vecrin R, Mischler P, Husse S, Lemauviel-Lavenant S, 2019. Des « bouquets de services écosystémiques » rendus par les prairies permanentes de fauche. Fourrages 237:83-94. https://afpf-asso.fr/article/les-bouquets-de-services-ecosystemiques-rendus-par-les-prairies-permanentes-de-fauche
  • Rigui AP, Carvalho V, dos Santos ALW, Morvan-Bertrand A, Prud'homme M-P, Carvalho MAM, Marília Gaspar M, 2019. Fructan and antioxidant metabolisms in plants of Lolium perenne under drought are modulated by exogenous nitric oxide, Plant Physiology and Biochemistry 145 :205-215. https://doi.org/10.1016/j.plaphy.2019.10.029
  • Benot ML, Morvan-Bertrand A, Mony C, Huet J, SulmonC, Decau ML, Prud'homme MP, Bonis A, 2019. Grazing intensity modulates carbohydrate storage pattern in five grass species from temperate grasslands. Acta Oecologica 95:108-115. https://doi.org/10.1016/j.actao.2018.11.005.
  • Meuriot F, Morvan-Bertrand A, Noiraud-Romy N, Decau M-L, Escobar-Gutierrez AJ, Gastal F, Prud’homme M-P, 2018. Short-term effects of defoliation intensity on sugar remobilization and N fluxes in ryegrass. Journal of Experimental Botany 69 :3975-3986 https://dx.doi.org/10.1093%2Fjxb%2Fery211
  • Le Moigne M-A, Guérin V, Furet P-M, Billard V, Lebrec A, Spíchal L, Roman H, Citerne S, Morvan-Bertrand A, Limami A, Vian A, Lothier J, 2018. Asparagine and sugars are both required to sustain secondary axis elongation after bud outgrowth in Rosa hybrida. Journal of Plant Physiology 222:17-27 https://doi.org/10.1016/j.jplph.2017.12.013
  • Volaire F, Ahmed LQ, Barre P, Bourgoin T, Durand JL, Escobar-Gutiérrez A, Fakiri M, Ghesquière M, Julier B, Kallida R, Louarn G, Morvan-Bertrand A, Picon-Cochard C, Prud’homme MP, Shaimi N, Zaka S, Zhouri L, Zwicke M, 2016. Quelle est la variabilité intra- et interspécifique des caractères d’adaptation des espèces prairiales pérennes aux variables du changement climatique ? Fourrages 225:1-9. https://afpf-asso.fr/article/quelle-est-la-variabilite-intra-et-interspecifique-des-caracteres-d-adaptation-des-especes-prairiales-perennes-aux-variables-du-changement-climatique
  • Marchand L, Pelosi C, Gonzalez-Centeno MR, Maillard A, Ourry A, Galland W, Teissedre PL, Bessoule JJ, Mongrand S, Morvan-Bertrand A, Zhang Q, Grosbellet C, Bert V, Oustrière N, Mench M, Brunel-Muguet S, 2016. Trace element bioavailability, yield and seed quality of rapeseed (Brassica napus L.) modulated by biochar incorporation into a contaminated technosol. Chemosphere 156:150-162 https://doi.org/10.1016/j.chemosphere.2016.04.129
  • Gasperl A, Morvan-Bertrand A, Prud’homme M-P, van der Graaff E, Roitsch T, 2016. Exogenous classic phytohormones have limited regulatory effects on fructan and primary carrbohydrate metabolism in perennial ryegrass (Lolium perenne L.). Frontiers in Plant Science 6:1251 http://dx.doi.org/10.3389/fpls.2015.01251
  • Zwicke M, Picon-Cochard C, Morvan-Bertrand A, Prud’homme M-P, Volaire F, 2015. What functional strategies drive drought survival and recovery of perennial species from upland grassland ? Annals of Botany 116:1001-1015 http://dx.doi.org/10.1093/aob/mcv037
  • Ould‐Ahmed M, Decau M-L, Morvan‐Bertrand A, Prud'homme M-P, Lafrenière C, Drouin P, 2015. Fructan, sucrose and related enzyme activities are preserved in timothy (Phleum pratense L.) during wilting. Grass and Forage 72:64–79  http://dx.doi.org/10.1111/gfs.12209
  • Gasperl A, Morvan-Bertrand A, Prud’homme M-P, van der Graaff E, Roitsch T, 2015. A simple and fast kinetic assay for the determination of fructan exohydrolase activity in perennial ryegrass (Lolium perenne L.). Frontiers in Plant Science 6:1154  http://dx.doi.org/10.3389/fpls.2015.01154
  • Ould-Ahmed M, Decau M-L, Morvan-Bertrand A, Prud’homme M-P, Lafrenière C, Drouin P, 2014. Plant maturity and nitrogen fertilization affected fructan metabolism in harvestable tissues of timothy (Phleum pratense L.). Journal of Plant Physiology 171:1479–90 http://dx.doi.org/10.1016/j.jplph.2014.07.007
  • Lothier J, Van Laere A, Prud’homme M-P, Van den Ende W, Morvan-Bertrand A, 2014. Cloning and characterization of a novel fructan 6-exohydrolase strongly inhibited by sucrose in Lolium perenne. Planta 240:629–43  http://dx.doi.org/10.1007/s00425-014-2110-6
  • Benot M-L, Saccone P, Vicente R, Pautrat E, Morvan-Bertrand A, Decau M-L, Grigulis K, Prud’homme M-P, Lavorel S, 2013. How extreme summer weather may limit the control of Festuca paniculata by hay-meadow management in subalpine grasslands. Plant Ecology and Diversity 6:393-404 http://dx.doi.org/10.1080/17550874.2013.784818
  • Lattanzi F-A, Gamnitzer U, Wild M, Morvan-Bertrand A, Decau M-L., Lehmeier C-A, Meuriot F, Prud’homme M-P, Schaufele R, Schnyder H, 2012. Fluxes in central carbohydrate metabolism of source leaves in a fructan-storing C3 grass – rapid turnover and futile cycling of sucrose in continuous light under contrasted nitrogen nutrition status. Journal of Experimental Botany 63:2363-2375 http://dx.doi.org/10.1093/jxb/ers020
  • Furet P-M, Berthier A, Decau M-L, Morvan-Bertrand A, Prud’homme M-P, Noiraud-Romy N, Meuriot F, 2012. Differential regulation of two sucrose transporters by light and defoliation conditions in perennial ryegrass. Plant Physiology and Biochemistry 61: 88-96 http://dx.doi.org/10.1016/j.plaphy.2012.09.011
  • Lasseur B, Lothier J, Wiemken A, Van Laere A, Morvan-Bertrand A, Van Den Ende W, Prud’homme M-P, 2011. Towards a better understanding of the generation of fructan structure diversity in plants: molecular and functional characterization of a sucrose : fructan 6-fructosyltransferase (6-SFT) cDNA from perennial ryegrass (Lolium perenne L.). Journal of Experimental Botany 62:1871-1875 http://dx.doi.org/10.1093/jxb/erq388
  • Lothier J, Lasseur B, Morvan-Bertrand A, Prud’homme M-P, 2010. Hexokinase dependent sugar signaling represses fructan exohydrolase (FEH) activity in Lolium perenne. Functional Plant Biology 37:1151-1160 http://dx.doi.org/10.1071/FP10086
  • Berthier A, Desclos M, Amiard V, Morvan-Bertrand A, Demming-Adams B, Adams WW, Turgeon R, Prud'homme MP, Noiraud-Romy N, 2009. Activation of sucrose transport in defoliated Lolium perenne L.: an example of apoplastic phloem loading plasticity. Plant and Cell Physiology, 50:1329-1344 http://dx.doi.org/10.1093/pcp/pcp081
  • Lee BR, Jin YL, Jung WJ, Avice JC, Morvan-Bertrand A, Ourry A, Chan-Woo Park CW, Kim TH, 2008 Water-deficit accumulates sugars by starch degradation—not by de novo synthesis—in white clover leaves (Trifolium repens). Physiologia Plantarum 134:403-411. http://dx.doi.org/10.1111/j.1399-3054.2008.01156.x
  • Lothier J, Lasseur B, Le Roy K, Van Laere A, Prud'homme M-P., Barre P, Van den Ende W, Morvan-Bertrand A, 2007. Cloning, gene mapping, and functional analysis of a fructan 1-exohydrolase (1-FEH) from Lolium perenne implicated in fructan synthesis rather than in fructan mobilization. Journal of Experimental Botany 58:1969-1983 http://dx.doi.org/10.1093/jxb/erm053
  • Lasseur B, Lothier J, Morvan-Bertrand A, Humphreys MO, Prud'homme MP, 2007. Impact of defoliation frequency on regrowth and carbohydrate metabolism in contrasting varieties of Lolium perenne. Functionnal Plant Biology 34:418-430 http://dx.doi.org/10.1071/FP06286
  • Lasseur B., Lothier J., Djoumad A., De Coninck B., Smeekens S., Van Laere A., Morvan-Bertrand A., Van den Ende W., Prud'homme MP., 2006. Molecular and functional characterization of a cDNA encoding fructan:fructan 6G-fructosyltransferase (6G-FFT) / fructan:fructan 1-fructosyltransferase (1-FFT) from perennial ryegrass (Lolium perenne L.). Journal of Experimental Botany 57:2719-2734 http://dx.doi.org/10.1093/jxb/erl034
  • Meuriot F, Decau M-L, Morvan-Bertrand A, Prud'homme M-P, Gastal F, Simon JC, Volenec JJ, Avice JC, 2005. Contribution of initial C and N reserves in Medicago sativa recovering from defoliation: impact of cutting height and residual leaf area. Functional Plant Biology 32:321-334 http://dx.doi.org/10.1071/FP04151
  • Amiard V, Morvan-Bertrand A, Cliquet J-B, Billard J-P, Huault C,  Sandström JP, Prud'homme M-P, 2004. Carbohydrate and amino acid composition in phloem sap of Lolium perenne L. before and after defoliation. Canadian Journal of Botany 82:1594-1601, https://cdnsciencepub.com/doi/10.1139/b04-117
  • Amiard V, Morvan-Bertrand A, Billard J-P., Huault C, Keller F, Prud'homme M-P, 2003. Fructans, but not sucrosyl-galactosides, raffinose and loliose, are affected by drougth stress in Lolium perenne L. Plant physiology 132:218-229 https://doi.org/10.1104/pp.103.022335
  • Amiard V, Morvan-Bertrand A, Billard J-P, Huault C, Prud'homme M-P, 2003. Fate of fructose supplied to leaf sheaths after defoliation of Lolium perenne L. Assessment by 13C-fructose labelling. Journal of Experimental Botany 54: 1231-1243 http://dx.doi.org/10.1093/jxb/erg125
  • Morvan-Bertrand A, Ernstsen A, Lingard B, Koshioka M, Le Saos J, Boucaud J, Prud'homme M-P, Junttila O, 2001. Endogenous gibberellins in Lolium perenne and influence of defoliation on their contents in elongating leaf bases and in leaf sheaths. Physiologia Plantarum 111:225-231 http://dx.doi.org/10.1034/j.1399-3054.2001.1110214.x
  • Morvan-Bertrand A, Boucaud J, Le Saos J, Prud'hommeM-P, 2001. Roles of fructans from leaf sheaths and from the elongating leaf bases in the regrowth following defoliation of Lolium perenne L. Planta 213:109-120 http://dx.doi.org/10.1007/s004250000478
  • Avice J-C, Louahlia S, Kim TH, Jacquet A, Morvan-Bertrand A, Prud'homme M-P, Ourry A, SimonJC, 2001. Influence des réserves azotées et carbonées sur la repousse des espèces prairiales. Fourrages 165:3-22 https://afpf-asso.fr/revue/numero-non-thematique-44?a=114
  • Morvan-Bertrand A, Pavis N, Boucaud J, Prud’homme M-P, 1999. Partitioning of reserve and newly assimilated carbon in roots and leaf tissues of Lolium perenne during regrowth after defoliation : assessment by 13C steady-state labelling and carbohydrate analysis. Plant, Cell and Environment 22:1097-1108 http://dx.doi.org/10.1046/j.1365-3040.1999.00485.x
  • Morvan-Bertrand A, Boucaud J, Prud'homme MP, 1999. Influence of initial levels of carbohydrates, fructans, nitrogen, and soluble proteins on regrowth of Lolium perenne L. cv. Bravo following defoliation. Journal of Experimental Botany 341:1817-1826 http://dx.doi.org/10.1093/jxb/50.341.1817
  • Morvan A, Challe G, Prud'homme M-P, Le Saos J, Boucaud J, 1997. Rise of fructan exohydrolase activity in stubble of Lolium perenne after defoliation is decreased by uniconazole, an inhibitor of the biosynthesis of gibberellins. New Phytologist 136:81-88 http://dx.doi.org/10.1111/j.1469-8137.1997.tb04733.x

 

Teaching activities

I teach in plant physiology, plant ecology and biostatistics at the ‘Biology and Earth Sciences’ department of the University of Caen Normandy.

I am co-responsible for the "Biology and Physiology of Organisms" course of the third year of the Bachelor of Life Sciences.

I teach in lectures, tutorials as well as practical and field work for different teaching units of the Bachelor of Life Sciences and of two Masters (Master of ecology and Master of production and valorisation of plants).

 

Degrees

PhD of the University of Caen Normandy – 1998 – ‘Dynamics of regrowth and mobilization of carbohydrate reserves of sheaths and growing leaves of Lolium perenne L. after defoliation; estimation of the role of gibberellins on regrowth and on the regulation of fructan exohydrolase activity’.

Accreditation to supervise research, Université de Caen Normandie – 2016 – ‘Fructans in grassland Poaceae : roles and metabolism’.

Modification date : 26 January 2024 | Publication date : 08 March 2012 | Redactor : S. Lemauviel-Lavenant