Laboratoire Evolution et Diversite Biologique

Maître de Conférences - Université Paul Sabatier, Toulouse 3

Laboratoire EDB
UMR5174 UPS-CNRS-ENFA
bâtiment 4R1
118 route de Narbonne
31062 Toulouse

 

THEMES DE RECHERCHE

Interactions mutualistes plantes - champignons

• La symbiose ectomycorhizienne : cas des aulnes et des champignons mycorhiziens associés

• Une symbiose tripartite : Hirtella physophora (plante), Allomerus decemarticulatus (fourmi) et un champignon

ENSEIGNEMENT

Botanique, Mycologie, Biologie Végétale, Biologie des interactions plantes-microorganismes,
en Licence de Biologie des Organismes, des Populations et des Ecosystèmes (BOPE) et en Master d’Ecologie


PUBLICATIONS

 Jargeat P, Martos F, Carriconde F, Gryta H, Moreau PA, Gardes M. (2010). Phylogenetic species delimitation in ectomycorrhizal fungi and implications for barcoding : the case of the Tricholoma scalpturatum complex. Molecular Ecology 19 : 5216-5230

Ruiz-González MX, Malé PJG, Leroy C, Dejean A, Gryta H, Jargeat P, Quilichini A , Orivel J. (2010). Specific, non-nutritional association between an Ascomycete fungus and Allomerus plant-ants. Biology Letters DOI 10.1098/rsbl.2010.0920
 
Leroy C, Delmas-Séjalon N, Jauneau A, Ruiz-Gonzalez, M-X, Gryta H, Jargeat P, Corbara B, Dejean A, Orivel J. (2011) Trophic mediation by a fungus in an ant-plant mutualism. Journal of Ecology 99 : 583–590
 
Carriconde F, Gryta H, Jargeat P, Mouhamadou B, Gardes M. (2008). High sexual reproduction and limited contemporary dispersal in the ectomycorrhizal fungus Tricholoma scalpturatum  : new insights from population genetics and spatial autocorrelation analysis. Molecular Ecology 17 : 4433-4445
 
Mouhamadou B, Carriconde F, Gryta H, Jargeat P, Manzi S, Gardes M. (2008). Molecular evolution of mitochondrial ribosomal DNA in the fungal genus Tricholoma : Barcoding implications. Fungal Genetics Biology 45 : 1219-1226.
 
Carriconde F, Gardes M, Jargeat P, Heilmann-Clausen J, Mouhamadou B, Gryta H. (2008). Population evidence of cryptic species and geographical structure in the cosmopolitan ectomycorrhizal fungus, Tricholoma scalpturatum. Microbial Ecology 56 : 513-524.
 
Lumini E, Bianciotto V, Jargeat P, Novero M, Salvioli A, Faccio A, Bécard G, BonfanteP. (2007). Presymbiotic growth and sporal morphology are affected in the arbuscular mycorrhizal fungus Gigaspora margarita cured of its endobacteria. Cellular Microbiology 9 : 1716-1729
 
Gryta H, Carriconde F, Charcosset JY, Jargeat P, Gardes M. (2006). Population dynamics of the ectomycorrhizal fungal species Tricholoma populinum and Tricholoma scalpturatum associated with black poplar under differing environmental conditions. Environmental Microbiology 8 : 773-786.
 
Jargeat P, Cosseau C, Ola’h B, Jauneau A, Bonfante P, Batut J, Bécard G. (2004).
Isolation, free-living capacities and genome structure of Candidatus Glomeribacter gigasporarum, the endocellular bacteria of the mycorrhizal fungus Gigaspora margarita. Journal of Bacteriology 186 : 6876-6884
 
Bianciotto V., Genre A., Jargeat P., Lumini E., Becard G. and Bonfante P. (2004).
Vertical transmission of endobacteria in the arbuscular mycorrhizal fungus Gigaspora margarita through vegetative spore generations. Applied and Environmental Microbiology 70 : 3600-3608
 
Jargeat P, Rekangalt D, Verner MC, Gay G, Debaud JC, Marmeisse R, Fraissinet-Tachet L. (2003). Characterisation and expression analysis of a nitrate transporter and nitrite reductase genes, two members of a gene cluster for nitrate assimilation from the symbiotic basidiomycete Hebeloma cylindrosporum. Current Genetics 43 : 199-205
 
Jargeat P, Gay G, Debaud JC, Marmeisse R. (2000). Molecular organisation and transcriptional regulation of nitrate reductase genes isolated from the symbiotic basidiomycete fungus Hebeloma cylindrosporum. Molecular and General Genetics 263 : 948-956
 
Marmeisse R, Jargeat P, Wagner F, Gay G, Debaud JC. (1998). Isolation and characterization of nitrate reductase deficient mutants of the ectomycorrhizal fungus Hebeloma cylindrosporum. The New Phytologist 140 :  311-318