Benoit Marçais


Benoit Marçais, Directeur de recherche
(00) 383 39 40 53


Research thematics:

My interest is in epidemiology of fungal diseases affecting trees in forests and natural ecosystems. recent work has been focused on determining the causes of forest disease emergence in relation with global change, in particular recent evolution in climate and invasion. The main pathosystems have been studying are Phytophthora alni, Chalara fraxinea, oak powdery mildew,  Dothistroma needle blight and Diplodia shoot blight of pines.

Recent articles:

Santini A., Ghelardini L., De Pace C., Desprez-Loustau M.L., Capretti P., Chandelier A., Cech T., Chira D., Diamandis S., Gaitniekis T., Hantula J., Holdenrieder O., Jankovsky L., Jung T., Jurc D., Kirisits T., Kunca A., Lygis V., Malecka M., Marcais B., Schmitz S., Schumacher J.,  Solheim H., Solla A., Szabò I., Tsopelas P., Vannini A., Vettraino A.M., Woodward S., Webber J., Stenlid J. (2013). Biogeographic patterns and determinants of invasion by forest pathogens in Europe. New Phytologist, 197: 238-250

Aguayo J., Adams G.C.,  Halkett F., Catal M., Husson C., Nagy Z.A., Hansen E.M., Frey P. and Marçais B. (2013). Strong genetic differentiation between American and European populations of Phytophthora alni subsp. uniformis. Phytopathology, 103:190-199

Marçais B., Loustau M.L. (2013). European oak powdery mildew: impact on trees, effects of environmental factors and potential effects of climate change. Ann. For. Sci. 61: 889–895

Coince A., Caël O., Bach C., Lengellé J., Cruaud C., Gavory F., Morin E., Murat C., Marçais B., Buée M. (2013). Below-ground fine-scale distribution and soil versus fine-root location of fungal and soil oomycete communities in a French beech forest. Fungal Ecology, 6: 223-235

Husson C., Caël O., Grandjean J.P., Nageleisen L. Marçais B. (2012). Occurrence of Hymenoscyphus pseudoalbidus on infected ash logs. Plant Pathol, DOI: 10.1111/j.1365-3059.2011.02578.x

Feau N., Lauron-Moreau A., Piou D., Marçais B., Dutech C., Desprez-Loustau M.L. 2012. Niche partitioning of genetic lineages involved in the oak powdery mildew complex. Fungal Ecology, 5:154-162

Fabre B., Ioos R., Piou D., Marçais B. (2012). Is emergence of pine Dothistroma needle blight in France caused by the cryptic species Dothistroma pini? Phytopathology, 102 : 47-54

Husson C., Scala B., Caël O., Frey P., Feau N. and Marçais B. (2011). Chalara fraxinea is an invasive pathogen in France. European Journal of Plant Pathology, 130: 311-324

Fabre B., Piou D., Desprez-Loustau M.L. and Marçais B. (2011). Can the emergence of pine Sphaeropsis shoot blight in France be explained by changes in pathogen pressure linked to climate change? Global Change Biology, 17: 3218–3227

Philibert A., Desprez-Loustau M.L., Fabre B., Frey P., Halkett F., Husson C., Lung-Escarmant B., Marçais B., Robin C., Vacher C., Makowski D. (2011). Predicting invasion success of forest pathogenic fungi from species traits. Journal of Applied Ecology, 48: 1381-1390

Marçais B., Caël O. and Delatour C. (2011). Interaction between root rot basidiomycetes and Phytophthora species on pedunculate oak. Plant Pathology, 60 : 296–303

Defossez E., Courbaud B., Marcais B., Thuiller W., Kunstler G.. (2011). Do interactions between plant and soil biota change with elevation? A study on Fagus sylvatica. Biology Letters, 7: 699-701

Buée M., Maurice J.P., Zeller B., Andrianarisoa S., RangerJ., Courtecuisse R., Marçais B. and Le Tacon F. (2011). Influence of tree species on richness and diversity of epigeous fungal communities in a French temperate forest stand. Fungal Ecology 4: 22-31.

Courty, P.E., Labbe J., Kohler A., Marcais B., Bastien C., Churin J.L., Garbaye J. and Le Tacon F. (2011). Effect of poplar genotypes on mycorrhizal infection and secreted enzyme activities in mycorrhizal and non-mycorrhizal roots. Journal of Experimental Botany 62: 249-260

Labbé J., Jorge V., Kohler A., Vion P., Marçais B.,  Bastien B., Tuskan G.A., Martin F., Le Tacon F. (2011) Identification of quantitative trait loci affecting ectomycorrhizal symbiosis in an interspecific F1 poplar cross and differential expression of genes in ectomycorrhizas of the two parents: Populus deltoides and Populus trichocarpa. Tree Genetics & Genomes, 7: 617-627

Desprez-Loustau M.L., Vitasse Y., Delzon S., Capdevielle X., Marçais B. and Kremer A. (2010). Are plant pathogen populations adapted for encounter with their host? A case study of phenological synchrony between oak and an obligate fungal parasite along an altitudinal gradient. Journal of Evolutionary Biology, 23: 87-97

Martin F., Kohler A., Murat C., Balestrini R., CoutinhoP.M., Jaillon O., Montanini B., Morin E., Noel B., PercudaniR., Porcel B., Rubini A., Amicucci A., Amselem J., Anthouard V., Arcioni S., Artiguenave F., Aury J.M., Ballario P., Bolchi A., Brenna A., Brun A., Buée M., Cantarel B., Chevalier G., Couloux A., Da Silva C., Denoeud F., Duplessis S., Ghignone S., Hilselberger B., Lotti M., Marçais B., Mello A., Miranda M., Pacioni G., Quesneville H., Riccioni C., Ruotolo R., Splivallo R., Stocchi V., Tisserant T., Viscomi A.R., Zambonelli A., Zampieri E., Henrissat B., Lebrun M.H., Paolocci F., Bonfante P., Ottonello S. and Wincke P. (2010). Perigord black truffle genome uncovers evolutionary origins and mechanisms of symbiosis. Nature 464 (7291): 1033-1038

Elegbede C.F., PierratJ.C., Aguayo J., Husson C., Halkett F. and Marçais B. (2010). A statistical model to detect asymptomatic infectious individual with an application in the Phytophthora alni induced alder decline. Phytopathology 100:1262-269.

Hajji, M., Dreyer, M.and Marçais, B. (2009). Impact of Erysiphe alphitoides on transpiration and photosynthesis in Quercus robur leaves. Eur. J. Plant Path. 125: 63-72

Marçais, B., Kavkova, M. and Desprez-Loustau, M.L. (2009). Phenotypic variation in the phenology of ascospore production between European populations of oak powdery mildew. Ann. F. Sci. 66: 814-822

Ioos R., Favre B., Saurat C., Frey P. and Marçais  B. (2009). Development, comparison, and validation of real-time and conventional PCR tools for the detection of the fungal pathogens causing brown spot and red band needle blights of pines. Phytopathology 100: 105:114

Thoirain, B., Husson, C., Marçais, B. (2007). Risk factors for the the Phytophthora-induced decline of alder in northeastern France. Phytopathology, 97: 99-105

Desprez-Loustau, M.L., Robin, C., Renaud, G., Déqué, M., Badeau, V., Piou, D., Husson, C. and Marçais B. (2007). Simulating the effects of a climate change scenario on geographical range and activity of forest pathogenic fungi. Can. J. Plant Pathol. 29: 101-120

Husson, C., Delatour, C., Frey, P., Marçais, B., Saurat, C. and Schenck, N. (2007). First report of Phytophthora ramorum on Ornamental Plants in France. Plant disease, 91: 1359-1359

Marçais, B., Caël O. (2006) Spatial pattern of the density of Armillaria epiphytic rhizomorphs on tree collar in an oak stand For. Path., 36: 32-40

Marçais, B., Bréda, N. (2006). Role of an opportunistic pathogen in the decline of stressed oak trees. Journal of Ecology 94: 1214-1223

Ioos, R., Andrieux, A., Marçais, B., Frey, P. (2006). Genetic characterization of the natural hybrid species Phytophthora alni as inferred from nuclear and mitochondrial DNA analyses. Fungal Genetics and Biology, 43: 511-529

Desprez-Loustau, M.L., Marçais, B., Nageleisen, L.M., Piou, D., Vannini, A. (2006). Interactive effects of drought and pathogens on forest trees. Ann. For. Sci. 63: 597-612