Research Topics

The team is studying a plant-fungus symbiosis called arbuscular mycorrhizal (AM) symbiosis that has played a fundamental role in the evolution of plants and today still improves nutrition and health of the majority of terrestrial plants. It seeks to understand how the establishment of this symbiosis at the most intimate cellular and molecular levels and to exploit the fundamental knowledge acquired to promote the use of this symbiosis in sustainable agriculture.

The AM symbiotic interaction involves the exchange of nutrients via specialized structures produced by the fungus in the cortical cells of roots called arbuscules. In exchange for organic molecules provided by the plant, the fungus provides water and minerals to its host plant, improving its nutrition and growth. AM symbiosis brings other benefits to plants, including better resistance to various stresses.

Our main objective is to study the cellular and molecular mechanisms involved in the establishment of the symbiotic interaction. We think that the study of this very old symbiosis can make us discover ancestral mechanisms of general functioning of plants and of their interactions with microorganisms. Our research is also conducted to promote the use of AM fungi in sustainable agriculture and reduce the need for irrigation and chemical inputs.

Culture du champignon mycorhizien Rhizophagus

In vitro root organ culture of the mycorrhizal fungus Rhizophagus irregularis. Scale bar = 500 µm

Racine colonisée par le champignon mycorhizien Rhizophagus

Root colonized by the mycorrhizal fungus Rhizophagus irregularis. The fungal structures (arbuscules and intercellular hyphae) are stained in green. Scale bar = 100 µm.

Current projects:

The team consisting of about fifteen people develops 5 axes of interconnected fundamental research:

  1. We have contributed to the discovery of important molecular signals produced by plant roots, strigolactones, and AM fungi, Myc-LCOs / COs. We study more precisely the roles and the mechanisms of action of these signals during the different stages of the AM symbiosis.
  2. We also look for new plant and fungal regulatory factors controlling the establishment and homeostasis of symbiosis (microRNAs, effectors, peptides, hormones, secondary metabolites, transcription factors).
  3. We study the trophic factors involved in the obligate biotrophy of AM fungi, and the impact of this trophic dependence on the functioning of mycelial networks.
  4. We are interested in the evolutionary processes that led terrestrial plants to associate with AM fungi (mycorrhization) but also with some nitrogen-fixing bacteria (nodulation).
  5. We also conduct biodiversity studies of mycorrhizal flora of more or less anthropized sites.

Finally, we contribute to R & D projects with industrial partners to identify the genetic traits of AM fungi that condition their agronomic efficiency, to better understand the mycorrhizal dependence of plants, and ultimately to promote the use of AM fungi in plant productions.

For all this we combine global approaches (genomics, phylogenomics, transcriptomics, micro-transcriptomics, metabolomics) and more specific ones (physiological, genetic, molecular, cellular, biochemical).




Le Marquer M, Bécard G, Frei dit Frey N (2018) Arbuscular mycorrhizal fungi possess a CLAVATA3/Endosperm surrounding region-related gene that positively regulates symbiosis. New Phytol. In press.

Valdés-López O, Jayaraman D, Maeda J, Delaux P-M, Venkateshwaran M, Isidra-Arellano MC, del Rocío Reyero-Saavedra M, del Socorro Sánchez-Correa M, Verastegui-Vidal MA, Delgado-Buenrostro N, Van Ness L, Mysore KS, Wen J, Sussman MR, Ané JM. (2018) A Novel Positive Regulator of the Early Stages of the Root Nodule Symbiosis Identified by Phosphoproteomics. Plant Cell Physiol. pcy228,

Magne K, Couzigou JM, Schiessl K, Liu S, George J, Zhukov V, Sahl L, Boyer F, Iantcheva A, Mysore KS, Wen J, Citerne S, Oldroyd GED and Ratet P (2018) MtNODULE ROOT1 and MtNODULE ROOT2 are essential for Medicago truncatula indeterminate nodule identity. Plant Physiol: 178(1):295-316

Van Deynze A*, Zamora P*, Delaux PM*, Heitmann C*, Gibson D, Schwartz KD, Berry AM, Graham D, Jayaraman D, Rajasekar S, Maeda J, Bhatnagar S, Jospin G, Darling A, Jeannotte R, Lopez J, Weimer BC, Eisen JA, Shapiro HY, Ané JM, Bennett AB (2018) Nitrogen fixation in a landrace of maize is supported by a mucilage-associated diazotrophic microbiota. PLoS Biol. 16(8): e2006352

Nishiyama T, Sakayama H, de Vries J, Buschmann H, Saint-Marcoux D, Ullrich K, Haas FB, Vanderstraeten L, Becker D, Lang D, Vosolsobě S, Rombauts S, Wilhelmsson PKI, Janitza P, Kern R, Heyl A, Rümpler F, Calderón Villalobos LIA, Clay JM, Skokan R, Toyoda A, Suzuki Y, Kagoshima H, Schijlen E, Tajeshwar N, Catarino B, Hetherington AJ, Saltykova A, Bonnot C, Breuninger H, Symeonidi A, Radhakrishnan GV, Van Nieuwerburgh F, Deforce D, Chang C, Karol KG, HedrichR, Ulvskov P, Glöckner G, Delwiche CF, Petrášek J, Van de Peer Y, Friml J, Beilby M, Dolan L, Kohara Y, Sugano S, Fujiyama A, Delaux PM, Quint M, Theißen G, Hagemann M, Harholt J, Dunand C, Zachgo S, Langdale J, Maumus F, Van Der Straeten D, Gould S, Rensing SA (2018) Chara genome: secondary complexity and implications for plant terrestrialization. Cell: 174(2): 448-464

Mathieu S, Cusant L, Roux C, Corradi N (2018) Arbuscular mycorrhizal fungi: intraspecific diversity and pangenomes. New Phytol: 220(4): 1129-1134

Griesmann M, Chang Y, Liu X, Song Y, Haberer G, Crook MB, Billault-Penneteau B, Lauressergues D, Keller J, Imanishi L, Roswanjaya YP, Kohlen W, Pujic P, Battenberg K, Alloisio N, Liang Y, Hilhorst H, Salgado MG, Hocher V, Gherbi H, Svistoonoff S, Doyle JJ, He S, Xu Y, Xu S, Qu J, Gao Q, Fang X, Fu Y, Normand P, Berry AM, Wall LG, Ané JM, Pawlowski K, Xu X, Yang H, Spannagl M, Mayer KFX, Wong GKS, Parniske M*, Delaux PM*, Cheng S* (2018) Phylogenomics reveals multiple losses of nitrogen-fixing root nodule symbiosis. Science: 361(6398). pii: eaat1743

Li FW, Carretero-Paulet L, Cheng S, de Vries J, Delaux PM, Eily A, Koppers N, Kuo LY, Li Z, Simenc M, Small I, Wafula E, Angarita S, Barker MS, Braeutigam A, Brouwer P, dePamphilis C, Gould S, Hosmani PS, Huang YM, Huettel B, Kato Y, Liu X, Maere S, McDowell R, Mueller LA, Rensing SA, Robison T, Rothfels CJ, Sigel EM, Song Y, Timilsina PR, Van de Peer Y, Wang H, Wilhelmsson PKI, Wolf PG, Xu X, Der JP, Schluepmann H, Wong GKS, Pryer KM (2018) Fern genomes elucidate land plant evolution and cyanobacterial symbioses. Nature Plants: 4(7): 460-472

Rich M, Delaux PM (2018) Taking the step: from Evo-Devo to plant–microbe interaction evolution with the liverwort Marchantia. New Phytol. 218: 1217-1232

Cheng S, Melkonian M, Smith S, Brockington S, Archibald JM, Delaux PM, Li FW, Melkonian B, Mavrodiev EV, Sun W, Fu Y, Yang H, Soltis DE, Graham SW, Soltis PS, Liu X, Xu X, Wong GKS (2018) 10KP: A Phylodiverse Genome Sequencing Plan. GigaScience, 7: 1-9

Vigneron N, Radhakrishnan G, Delaux PM (2018) What have we learnt studying the evolution of the arbuscular mycorrhizal symbiosis? Curr Opin Plant Biol. 44:49-56

Pierart A, Dumat C, Maes AQ, Séjalon-Delmas N (2018) Influence of arbuscular mycorrhizal fungi on antimony phyto-uptake and compartmentation in vegetables cultivated in urban gardens. Chemosphere, 191:272-279.

Pierart A, Dumat C, Maes AQ, Roux C, Séjalon-Delmas N (2018). Opportunities and risks of biofertilization for leek production in urban areas: Influence on both fungal diversity and human bioaccessibility of inorganic pollutants. STOTEN, 624:1140-1151.

Chen E, Morin E, Beaudet D, Noel J, Yildirir G, Ndikumana S, Charron P, Stonge C, Giorgi J, Kruger M, Marton T, Ropars J, Grigoriex IV, Hainaut M, Henrissat B, Roux C, Martin F & Corradi N (2018) High intraspecific genome diversity in the model arbuscular mycorrhizal symbiont Rhizophagus irregularis. New Phytol. DOI:10.1111/nph.14989


Rich M K, Courty PE, Roux C, & Reinhardt D (2017) Role of the GRAS transcription factor ATA/RAM1 in the transcriptional reprogramming of arbuscular mycorrhiza in Petunia hybrida. BMC genomics, 18(1), 589

Keymer A, Pimprikar P, Wewer V, Huber C, Brands M, Bucerius SL, Delaux PM, Klingl V, Röpenack-Lahaye EV, Wang TL, Eisenreich W, Dörmann P, Parniske M, Gutjahr C (2017) Lipid transfer from plants to arbuscular mycorrhizal fungi. Elife. pii : e29107. doi : 10.7554/eLife.29107

Bécard G (2017) How Plants Communicate with their Biotic Environment, Advances in Botanical Research, Vol 82, 1st Edition, Academic Press, 404 pages

Bécard G & Puech-Pagès V (2017) Communication entre les partenaires dans la symbiose mycorhizienne à arbuscules, in “Les sols et la vie souterraine” – Des enjeux majeurs en agroécologie. J.-F. Briat & D. Job (Coord.), Quae, 328 pages

Bécard G, Guidi L, Alizon S, Angelier F, Bezin L, Bowler C, Courchamp F, Dutreuil S, Faure M, Hibner U, Jebbar M, Kaltz O, Leulier F, Loudet O, Simonet P, Tost J, Vergnolle N (2017) L’être vivant dans son environnement, in “Étonnant vivant – Découvertes et promesses du XXIe siècle”, C. Jessus & T. Gaude (Eds.), CNRS Edition, 328 pages

Hérivaux A, de Bernonville TD, Roux C, Clastre M, Courdavault V, Gastebois A, … & Papon N (2017) The Identification of Phytohormone Receptor Homologs in Early Diverging Fungi Suggests a Role for Plant Sensing in Land Colonization by Fungi. mBio, 8(1), e01739-16

Nadal M, Sawers R, Naseem S, Bassin B, Kulicke C, Sharman A, An G, An K, Ahern KR, Romag A, Brutnell TP, Gutjahr C, Geldner N,
Roux C, Martinoia E, Konopka JB & Paszkowski U (2017) An N-acetylglucosamine transporter required for arbuscular mycorrhizal symbioses in rice and maize. Nature Plants (3). doi:10.1038/nplants.2017.73

Zhang R, Calixto CPG, Marquez Y, Venhuizen P, Tzioutziou NA, Guo W, Spensley M, Entizne JC, Lewandowska D, Ten Have S, Frei Dit Frey N, Hirt H, James AB, Nimmo HG, Barta A, Kalyna M, Brown JWS (2017) A high quality Arabidopsis transcriptome for accurate transcript-level analysis of alternative splicing. Nucleic Acids Res. 2017 May 19 ;45(9):5061-5073

Kamel L, Tang N, Malbreil M, San Clemente H, Le Marquer M, Roux C, Frei Dit Frey N (2017) The Comparison of Expressed Candidate Secreted Proteins from Two Arbuscular Mycorrhizal Fungi Unravels Common and Specific Molecular Tools to Invade Different Host Plants. Front Plant Sci. 2017 Feb 7 ;8:124. doi : 10.3389/fpls.2017.00124. eCollection 2017

Couzigou JM, Lauressergues D, André O, Gutjahr C, Guillotin B, Bécard G, Combier JP (2017) Positive Gene Regulation by a Natural Protective miRNA Enables Arbuscular Mycorrhizal Symbiosis. Cell Host Microbe. Dec 14. pii : S1931-3128(16)30490-5. doi : 10.1016/j.chom.2016.12.001


Gough C & Bécard G (2016) Strigolactones and lipochitooligosaccharides as molecular communication signals in the arbuscular mycorrhizal symbiosis, in “Molecular Mycorrhizal Symbiosis”, F. Martin (Ed.), Wiley-Blackwell, 576 pages

Thiéry O, Vasar M, Jairus T, Davison J, Roux C, Kivistik PA, Metspalu A, Milani L, Saks Ü, Moora M, Zobel M, Öpik M (2016) Sequence variation in nuclear ribosomal small subunit, internal transcribed spacer and large subunit regions of Rhizophagus irregularis and Gigaspora margarita is high and isolate‐dependent. Molecular ecology, 25(12), 2816-2832

Delaux PM, Radhakrishnan GV, Jayaraman D, Cheema J, Malbreil M, Volkening JD, Sekimoto H, Nishiyama T, Melkonian M, Pokorny L, Rothfels CJ, Winter Sederoff H, Stevenson DW, Surek B, Zhang Y, Sussman MR, Dunand C, Morris RJ, Roux C, Wong GKS, Oldroyd GED, Ané JM (2016) The algal ancestor of land plants was pre-adapted for symbiosis. PNAS, 112(43), 13390-13395

Kamel L, Keller-Pearson M, Roux C, Ané JM (2016) Biology and evolution of arbuscular mycorrhizal symbiosis in the light of genomics. New Phytol. doi : 10.1111/nph.14263.

Guillotin B, Etemadi M, Audran C, Bouzayen M, Bécard G, Combier JP (2016) Sl-IAA27 regulates strigolactone biosynthesis and mycorrhization in tomato (var. MicroTom). New Phytol. 2016 Oct 17. doi : 10.1111/nph.14246

Delaux PM (2016) Comparative phylogenomics of symbiotic associations. New Phytol Sep 1. doi : 10.1111/nph.14161.
Couzigou JM, Combier JP (2016) Plant microRNAs : key regulators of root architecture and biotic interactions. New Phytol. 2016 Jun 13. doi : 10.1111/nph.14058

Jia KP, Kountche BA, Jamil M, Guo X, Ntui VO, Rüfenacht A, Rochange S, Al-Babili S (2016) Nitro-Phenlactone, a Carlactone Analog with Pleiotropic Strigolactone Activities. Mol Plant. Sep 6 ;9(9):1341-4

Sedzielewska-Toro K, Delaux PM (2016) Mycorrhizal symbioses : today and tomorrow. New Phytol Feb ;209(3):917-20

Couzigou JM, André O, Guillotin B, Alexandre M, Combier JP (2016) Use of microRNA-encoded peptide miPEP172c to stimulate nodulation in soybean. New Phytol. Jul ;211(2):379-81

Tang N, San Clemente H, Roy S, Bécard G, Zhao B, Roux C (2016) A Survey of the Gene Repertoire of Gigaspora rosea Unravels Conserved Features among Glomeromycota for Obligate Biotrophy. Front Microbiol. 2016 Mar 1 ;7:233. doi : 10.3389/fmicb.2016.00233. eCollection 2016.


Delaux PM, Radhakrishnan GV, Jayaraman D, Cheema J, Malbreil M, Volkening JD, Sekimoto H, Nishiyama T, Melkonian M, Pokorny L, Rothfels CJ, Sederoff HW, Stevenson DW, Surek B, Zhang Y, Sussman MR, Dunand C, Morris RJ, Roux C, Wong GK, Oldroyd GE, Ané JM (2015) Algal ancestor of land plants was preadapted for symbiosis. Proc Natl Acad Sci 27 ;112(43) : 13390-5

Couzigou JM, Lauressergues D, Bécard G, Combier JP (2015) miRNA-encoded peptides (miPEPs) : a new tool to analyse the roles of miRNAs in plant biology. RNA Biol 12(11) : 1178-80

Lauressergues D, Couzigou JM, Clemente HS, Martinez Y, Dunand C, Bécard G, Combier JP (2015) Primary transcripts of microRNAs encode regulatory peptides. Nature 520(7545) : 90-3

Mazaheri-Naeini M, Sabbagh SK, Martinez Y, Séjalon-Delmas N, Roux C (2015) Assessment of Ustilago maydis as a fungal model for root infection studies. Fungal Biol 119(2-3) : 145-53

Lauressergues D, André O, Peng J, Wen J, Chen R, Ratet P, Tadege M, Mysore KS, and Rochange SF (2015) Strigolactones contribute to shoot elongation and to the formation of leaf margin serrations in Medicago truncatula R108. J Exp Bot 66(5) : 1237-44


Formey D, Sallet E, Lelandais-Brière C, Ben C, Bustos-Sanmamed P, Niebel A, Frugier F, Combier JP, Debellé F, Hartmann C, Poulain J, Gavory F, Wincker P, Roux C, Gentzbittel L, Gouzy J and Crespi M (2014) The small RNA diversity from Medicago truncatula roots under biotic interactions evidences the environmental plasticity of the miRNAome. Genome Biol 24 ;15(9) : 457.

Cardoso C, Charnikhova T, Jamil M, Delaux PM, Verstappen F, Amini M, Lauressergues D, Ruyter-Spira C, Bouwmeester H (2014) Differential activity of Striga hermonthica seed germination stimulants and Gigaspora rosea hyphal branching factors in rice and their contribution to underground communication. PLoS One doi : 10.1371/journal.pone.0104201. eCollection 2014

Etemadi M*, Gutjahr C*, Couzigou JM, Zouine M, Lauressergues D, Timmers A, Audran C, Bouzayen M, Becard G, Combier JP (2014) Auxin perception is required for arbuscule development in arbuscular mycorrhizal symbiosis. Plant Physiol 166(1) : 281-92

Dore J, Marmeisse R, Combier JP*, Gay G* (2014) A fungal conserved gene from the basidiomycete Hebeloma cylindrosporum is essential for efficient ectomycorrhiza formation. MPMI 27(10) : 1059-69

Boyer FD, de Saint Germain A, Pouvreau JB, Clavé G, Pillot JP, Roux A, Rasmussen A, Depuydt S, Goormachtig S, Lauressergues D, Frei dit Frey N, Heugebaert T, Rameau C (2014) New strigolactone analogues as plant hormones with low activities in the rhizosphere. Mol Plant 7(4) : 675-690

Laparre J*, Malbreil M*, Letisse F, Portais JC, Roux C, Bécard G, Puech-Pagès V (2014) Combining metabolomics and gene expression analysis reveals that propionyl- and butyryl-carnitines are involved in late stages of arbuscular mycorrhizal symbiosis. Mol Plant 7(3) : 554-66


Tisserant E*, Malbreil M*, Kuo A, Kohler A, Symeonidi A, Balestrini R, Charron P, Duensing N, Frei Dit Frey N, Gianinazzi-Pearson V, Gilbert LB, Handa Y, Herr JR, Hijri M, Koul R, Kawaguchi M, Krajinski F, Lammers PJ, Masclaux FG, Murat C, Morin E, Ndikumana S, Pagni M, Petitpierre D, Requena N, Rosikiewicz P, Riley R, Saito K, San Clemente H, Shapiro H, van Tuinen D, Bécard G, Bonfante P, Paszkowski U, Shachar-Hill YY, Tuskan GA, Young PW, Sanders IR, Henrissat B, Rensing SA, Grigoriev IV, Corradi N, Roux C, Martin F (2013) Genome of an arbuscular mycorrhizal fungus provides insight into the oldest plant symbiosis. Proc Natl Acad Sci 10 ;110(50) : 20117-22

Bassa C*, Etemadi M*, Combier JP, Bouzayen M and Audran-Delalande C (2013) Sl-IAA27 gene expression is induced during arbuscular mycorrhizal symbiosis in tomato and in Medicago truncatula. Plant Signal Behav 8(10) : doi : 10.4161/psb.25637

Balzergue C, Chabaud M, Barker DG, Bécard G, Rochange S (2013) High phosphate reduces host ability to develop arbuscular mycorrhizal symbiosis without affecting root calcium spiking responses to the fungus. Front Plant Sci 29 ;4 : 426

Delaux PM, Bécard G and Combier JP (2013) NSP1 is a component of the Myc signaling pathway. New Phytol 199(1) : 59-65

Bazin J, Khan GA, Combier JP, Bustos-Sanmamed P, Debernardi JM, Rodriguez R, Sorin C, Palatnik J, Hartmann C, Crespi M, and Lelandais-Briere C (2013) miR396 affects mycorrhization and root meristem activity in the legume Medicago truncatula. Plant J 74(6) : 920-34

Delaux PM, Séjalon-Delmas N, Bécard G, Ané JM (2013) Evolution of the plant – microbe symbiotic “toolkit”. Trends Plant Sci 18(6) : 298-304

Genre A*, Chabaud M*, Balzergue B, Puech-Pages V, Novero M, Rey T, Fournier J, Rochange S, Bécard G, Bonfante P and Barker DG (2013) Short-chain chitin oligomers from arbuscular mycorrhizal fungi trigger nuclear Ca2+ spiking in Medicago truncatula roots and their production is enhanced by strigolactone. New Phytol 198(1) : 190-202


Louarn J, Carbonne F, Delavault P, Bécard G, Rochange S (2012) Reduced germination of Orobanche cumana seeds in the presence of arbuscular mycorrhizal fungi or their exudates. PLoS ONE 7(11)

Formey D*, Molès M*, Haouy A, Savelli B, Bouchez O, Bécard G and Roux C (2012) Comparative analysis of mitochondrial genomes of Rhizophagus irregularis – syn. Glomus irregulare – reveals a polymorphism induced by variability generating elements. New Phytol 196 (4) : 1217-27

Lauressergues D*, Delaux PM*, Formey D, Lelandais-Brière C, Fort S, Cottaz S, Bécard G, Niebel A, Roux C, Combier JP (2012) The microRNA miR171h modulates arbuscular mycorrhizal colonization of Medicago truncatula by targeting NSP2. Plant J 72 (3) : 512-522

Delaux PM, Xie X, Timme RE, Puech-Pages V, Dunand C, Lecompte E, Delwiche CF, Yoneyama K, Bécard G and Séjalon-Delmas N (2012) Origin of strigolactones in the green lineage. New Phytol 195 (4) : 857-871

Tisserant E, Kohler A, Dozolme-Seddas P, Balestrini R, Benabdellah K, Colard A, Croll D, Da Silva C, Gomez SK, Koul R, Ferrol N, Fiorilli V, Formey D, Franken P, Helber N, Hijri M, Lanfranco L, Lindquist E, Liu Y, Malbreil M, Morin E, Poulain J, Shapiro H, van Tuinen D, Waschke A, Azcón-Aguilar C, Bécard G, Bonfante P, Harrison MJ, Küster H, Lammers P, Paszkowski U, Requena N, Rensing SA, Roux C, Sanders IR, Shachar-Hill Y, Tuskan G, Young JPW, Gianinazzi-Pearson V and Martin F (2012) The transcriptome of the arbuscular mycorrhizal fungus Glomus intraradices (DAOM 197198) reveals functional tradeoffs in an obligate symbiont. New Phytol 193 (3) : 755-69

Delaux PM, Nanda AK, Mathé C, Sejalon-Delmas N, Dunand C (2012) Molecular and biochemical aspects of plant terrestrialization. Perspective in Plant Ecology, Evolution and Systematics 14 : 49-50


Koltai H, Cohen M, Chesin O, Mayzlish-Gati E, Bécard G, Puech V, Ben Dor B, Resnick N, Wininger S, Kapulnik Y (2011) Light is a positive regulator of strigolactone levels in tomato roots. J Plant Physiol 168 (16) : 1993-6

Laparre J, Balzergue C, Rochange S, Ludwiczak P, Letisse F, Portais JC, Bécard G, Puech-Pages V (2011) Metabolite profiling of pea roots in response to phosphate availability. Plant Signal Behav 6 : 837-839

Maillet F, Poinsot V, Andre O, Puech-Pagès V, Haouy A, Gueunier M, Cromer L, Giraudet D, Formey D, Niebel A, Andres Martinez E, Driguez H, Bécard G, Dénarié J (2011) Fungal lipochitooligosaccharidic symbiotic signals in arbuscular mycorrhiza. Nature 3 : 58-63

Balzergue C, Puech-Pages V, Becard G, Rochange SF (2011) The regulation of arbuscular mycorrhizal symbiosis by phosphate in pea involves early and systemic signalling events. J Exp Bot 62 : 1049-60

Kapulnik Y, Delaux PM, Resnick N, Mayzlish-Gati E, Wininger S, Bhattacharya C, Sejalon-Delmas N, Combier JP, Becard G, Belausov E, Beeckman T, Dor E, Hershenhorn J, Koltai H (2011) Strigolactones affect lateral root formation and root-hair elongation in Arabidopsis. Planta 233 : 209-16


Diagne-Leye G, Almaraz-Lopez T, Sy-Ndir M, Mascarell G, Ba AT, Roux C (2010) Systematic position of Moesziomyces penicillariae among Ustilaginaceae. African Journal of Microbiology Research 4 (9) : 740-747

Sabbagh SK, Digne-les-Bains G, Naudan M, Roux C (2010) Solopathogenic strain formation strongly differs among Ustilaginaceae species. FEMS Microbiol Lett 305 (2) : 121-127


Besserer A, Becard G, Roux C, Sejalon-Delmas N (2009) Role of mitochondria in the response of arbuscular mycorrhizal fungi to strigolactones. Plant Signal Behav 4 : 75-77


Gianinazzi-Pearson V, Sejalon-Delmas N, Genre A, Jeandroz S, Bonfante P (2008) Plants and arbuscular mycorrhizal fungi : cues and communication in the early steps of symbiotic interactions. Adv Bot Res 46 : 182-219

Besserer A, Becard G, Jauneau A, Roux C, Sejalon-Delmas N (2008) GR24, a synthetic analog of strigolactones, stimulates the mitosis and growth of the arbuscular mycorrhizal fungus Gigaspora rosea by boosting its energy metabolism. Plant Physiol 148 : 402-413

Gomez-Roldan V, Fermas S, Brewer PB, Puech-Pages V, Dun EA, Pillot JP, Letisse F, Matusova R, Danoun S, Portais JC, Bouwmeester H, Becard G, Beveridge CA, Rameau C, Rochange SF (2008) Strigolactone inhibition of shoot branching. Nature 455 : 189-U122

Lopez-Raez JA, Charnikhova T, Gomez-Roldan V, Matusova R, Kohlen W, De Vos R, Verstappen F, Puech-Pages V, Becard G, Mulder P, Bouwmeester H (2008) Tomato strigolactones are derived from carotenoids and their biosynthesis is promoted by phosphate starvation. New Phytol 178 : 863-874


Gomez-Roldan V, Roux C, Girard D, Becard G, Puech-Pages V (2007) Strigolactones : promising plant signals. Plant Signal Behav 2 : 163-164

Bouwmeester HJ, Roux C, Lopez-Raez JA, Becard G (2007) Rhizosphere communication of plants, parasitic plants and AM fungi. Trends Plant Sci 12 : 224-230

Lumini E, Bianciotto V, Jargeat P, Novero M, Salvioli A, Faccio A, Becard G, Bonfante P (2007) Presymbiotic growth and sporal morphology are affected in the arbuscular mycorrhizal fungus Gigaspora margarita cured of its endobacteria. Cell Microbiol 9 : 1716-1729


Besserer A, Puech-Pages V, Kiefer P, Gomez-Roldan V, Jauneau A, Roy S, Portais JC, Roux C, Becard G, Sejalon-Delmas N (2006) Strigolactones stimulate arbuscular mycorrhizal fungi by activating mitochondria. Plos Biol 4 : 1239-1247


Guimil S, Chang HS, Zhu T, Sesma A, Osbourn A, Roux C, Ioannidis V, Oakeley EJ, Docquier M, Descombes P, Briggs SP, Paszkowski U (2005) Comparative transcriptomics of rice reveals an ancient pattern of response to microbial colonization. Proc Natl Acad Sci 10 (22) : 8066-8070

De Souza F. A., Séjalon-Delmas N (2005) Life history strategies in Gigasporaceae : insight from monoxenic cultures. In Mycorrhizas on root-organ culture, Series : Soil Biology, Dr. Ajit K. Varma, S. Declerck, D.G. Strullu, J.A. Fortin Eds.

De la Providencia I, Adriano de Souza F, Fernandez F, Séjalon-Delmas N, Declerck S (2005) Arbuscular mycorrhizal fungi reveal distinct pattern of anastomoses formation and hyphal healing mechanism between different phylogenetic groups. New Phytol 165 : 261-271

Olah B, Briere C, Becard G, Denarie J, Gough C (2005) Nod factors and a diffusible factor from arbuscular mycorrhizal fungi stimulate lateral root formation in Medicago truncatula via the DMI1/DMI2 signalling pathway. Plant J 44 : 195-207

Trepanier M, Becard G, Moutoglis P, Willemot C, Gagne S, Avis TJ, Rioux JA (2005) Dependence of arbuscular-mycorrhizal fungi on their plant host for palmitic acid synthesis. Appl Environ Microbiol 71 : 5341-5347


Becard G, Kosuta S, Tamasloukht M, Sejalon-Delmas N, Roux C (2004) Partner communication in the arbuscular mycorrhizal interaction. Can J Bot – Rev Can Bot 82 : 1186-1197

Bianciotto V, Genre A, Jargeat P, Lumini E, Becard G, Bonfante P (2004) Vertical transmission of endobacteria in the arbuscular mycorrhizal Fungus gigaspora margarita through generation of vegetative spores. Appl Environ Microbiol 70 : 3600-3608

Jargeat P, Cosseau C, Ola’h B, Jauneau A, Bonfante P, Batut J, Becard G (2004) Isolation, free-living capacities, and genome structure of « Candidatus glomeribacter gigasporarum, » the endocellular bacterium of the mycorrhizal fungus Gigaspora margarita. J Bacteriol 186 : 6876-6884


Jolicoeur M, Bouchard-Marchand E, Becard G, Perrier M (2003) Regulation of mycorrhizal symbiosis : development of a structured nutritional dual model. Ecological Modelling 158 : 121

Kosuta S, Chabaud M, Lougnon G, Gough C, Denarie J, Barker DG, Becard G (2003) A diffusible factor from arbuscular mycorrhizal fungi induces symbiosis-specific MtENOD11 expression in roots of Medicago truncatula. Plant Physiol 131 : 952-962

Martinez C, Roux C, Jauneau A, Becard G, Dargent R (2003) Effect of water potential on the development of an haploid strain of Sporisorium reilianum f.sp zeae. Plant and Soil 251 : 65-71

Tamasloukht M, Sejalon-Delmas N, Kluever A, Jauneau A, Roux C, Becard G, Franken P (2003) Root factors induce mitochondrial-related gene expression and fungal respiration during the developmental switch from asymbiosis to presymbiosis in the arbuscular mycorrhizal fungus Gigaspora rosea. Plant Physiol 131 : 1468-1478

Gianinazzi-Pearson, V., Azcon-Aguilar, C., Bécard, G., Bonfante, P., Ferrol, N., Franken, P., Gollotte, A., Harrier, L.A., Lanfranco, L. & van Tuinen, D (2003) Structural and functional genomics of symbiotic arbuscular mycorrhizal fungi . In : Advances in fungal biotechnology for industry, agriculture, and medicine, JS Tkacz, L Lange (eds). Kluwer Academic/Plenum Publishers, p 405-419

Laurent Kamel Université Paul Sabatier, Toulouse III. Les petits peptides sécrétés des champignons mycorhiziens à arbuscules, sésames de la biotrophie ?

Bruno Guillotin Université Paul Sabatier, Toulouse III. Autorégulation de la symbiose mycorhizienne à arbuscules.

Mohammad Etemadi (2014) Université Paul Sabatier, Toulouse III / ENSAT. Implication de l’auxine dans la symbiose endomycorhizienne à arbuscule chez la tomtate. (pdf)

Nianwu Tang Université Paul Sabatier, Toulouse III / Université Hua Zhong Agricultural (Chine). Transcriptomic analysis of Gigaspora.

Mathilde Malbreil (2014) Université Paul Sabatier, Toulouse III. Le dialogue moléculaire pendant la symbiose endomycorhizienne : perception et émission de signaux symbiotiques par le champignon Glomus intraradices . (pdf)

Johann Louarn (2013) Université Paul Sabatier, Toulouse III. Exploitation de la symbiose endomycorhizienne pour l’amélioration de la résistance à l’Orobanche chez le tournesol.

Coline Balzergue (2013) Université Paul Sabatier, Toulouse III. Régulation de la symbiose endomycorhizienne par le partenaire végétal. (pdf)

Damien Formey De Saint Louvent (2012) Université Paul Sabatier, Toulouse III. Analyse du génome de Glomus intraradices et étude de la régulation génique chez le champignon et la plante hôte lors de l’établissement de la symbiose endomycorhizienne. (pdf)

Jérôme Laparre (2012) Université Paul Sabatier, Toulouse III. Dynamique métabolique de l’établissement de la symbiose obligatoire des champignons mycorhiziens à arbuscules. (pdf)

Pierre-Marc Delaux (2011) Université Paul Sabatier, Toulouse III. Contenu en strigolactones du maïs. Recherche de nouvelles strigolactones chez les organismes photosynthétiques ancestraux. (pdf)

Maria-Victoria Gomez-Roldan (2008) Université Paul Sabatier, Toulouse III. Rôle des strigolactones dans la symbiose mycorhizienne à arbuscules. (pdf)

Arnaud Besserer (2008) Université Paul Sabatier, Toulouse III. Étude des mécanismes d’action des strigolactones sur les champignons endomycorhiziens à arbuscules. (pdf)

Seyed Kazem Sabbagh (2008) Université Paul Sabatier, Toulouse III. Adaptation à la pénétration racinaire de deux Ustilaginaceae parasites du maïs : Ustilago maydis et Sporisorium reilianum – Analyse microscopique et transcriptomique. (pdf)

Sonja Kosuta (2003) Université Paul Sabatier, Toulouse III. Des facteurs diffusibles, produits par les champignons mycorhiziens à arbuscules, induisent des réponses symbiotiques au niveau des racines de Medicago truncatula.


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