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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Frédéric Suffert

photo perso Frédéric Suffert

Research scientist (PhD, HDR) 


Group Epidemiology of Fungal Wheat Diseases


French National Institute for Agriculture, Food and Environment
1 avenue Lucien Brétignières, 78850 Thiverval-Grignon, France


Phone +33 (0)1 30 81 54 35

Email frederic.suffert[*]

Twitter @wheatpath

ORCID 0000-0001-6969-3878


I am plant disease epidemiologist for the French National Institute for Agriculture, Food and Environment (INRAE). I hold an engineering diploma in agronomy specialized in Crop Protection, a PhD in plant pathology from Agrocampus Ouest and a HDR. In the past I worked at INRAE Rennes (IGEPP) on the epidemiology of soil-borne diseases (carrot cavity spot). I currently work at INRAE Versailles-Grignon (BIOGER) and head the group Epidemiology of Fungal Wheat Diseases. I conduct research on epidemiology of Septoria tritici blotch of wheat (Zymoseptoria tritici) with particular reference to biophysical mechanisms affecting the disease development, sexual reproduction (studies on residues as source of primary inoculum), and adaptation of pathogen populations to environmental heterogeneities (host resistance and temperature). I graduated from the IHEDN and regularly address issues of crop biosecurity for different governmental agencies (see in particular the C&Aw pages for a complete agroterrosim horizon scanning). I have been member of the ANSES expert committee Biological Risks to Plant Health for several years and still participates occasionally in expertise activities. I am general secretary of the French Phytopathological Society (SFP) since 2016.



Kerdraon L, Barret M, Balesdent M, Suffert F*, Laval V. 2020. Impact of a resistance gene against a fungal pathogen on the plant host residue microbiome: the case of the Leptosphaeria maculans-Brassica napus pathosystem. bioRxiv, not peer-reviewed [pdf] *co-last author


Boixel AL, Gélisse S, Marcel TC, Suffert F. 2019. Differential tolerance of Zymoseptoria tritici to altered optimal moisture conditions during the early stages of wheat infection. bioRxiv, not peer-reviewed [pdf]


Boixel AL, Chelle M, Suffert F. 2019. Patterns of thermal adaptation in a worldwide plant pathogen: local diversity and plasticity reveal two-tier dynamics. bioRxiv, not peer-reviewed [pdf]


Karisto P, Suffert F, Mikaberidze A. 2019. Spatially-explicit modeling improves empirical characterization of dispersal: theory and a case study. bioRxiv, not peer-reviewed [pdf]


Kerdraon L, Barret M, Laval V, Suffert F. 2019. Differential dynamics of microbial community networks help identify microorganisms interacting with residue-borne pathogens: the case of Zymoseptoria tritici in wheat. Microbiome 7: 125 [pdf]


Kerdraon L, Laval V, Suffert F. 2019. Microbiomes and pathogen survival in crop residues, an ecotone between plant and soil. Phytobiomes Journal 3: 246-255 [pdf]


Kerdraon L, Balesdent M-H, Barret M, Laval V, Suffert F. 2019. Crop residues in wheat-oilseed rape rotation system: a pivotal, shifting platform for microbial meetings. Microbial Ecology 4: 931-945 [pdf]


Morais D, Duplaix C, Sache I, Laval V, Suffert F*, Walker A-S. 2019. Overall stability in the genetic structure of a Zymoseptoria tritici population from epidemic to interepidemic stages at a small spatial scale. European Journal of Plant Pathology 154: 423-436 [pdf] *co-last author


Boixel AL, Delestre G, Legeay J, Chelle M, Suffert F. 2019. Phenotyping thermal responses of yeasts and yeast-like microorganisms at the individual and population levels: proof-of-concept, development and application of an experimental framework to a plant pathogen. Microbial Ecology 78: 42-56 [pdf]


Suffert F, Thompson R. 2018. Some reasons why the latent period should not always be considered constant over the course of a plant disease epidemic. Plant Pathology 67: 1831-1840 [pdf]


Suffert F, Delestre G, Gélisse S. 2018. Sexual reproduction in the fungal foliar pathogen Zymoseptoria tritici is driven by antagonistic density-dependence mechanisms. Microbial Ecology 77: 110-123 [pdf]


Suffert F, Goyeau H, Sache I, Carpentier F, Gélisse S, Morais D, Delestre G. 2018. Epidemiological trade-off between intra- and interannual scales in the evolution of aggressiveness in a local plant pathogen population. Evolutionary Applications 11: 768-780 [pdf]


Soubeyrand S, Garreta V, Monteil C, Suffert F, Goyeau H, Berder J, Berge O, Moinard J, Fournier E, Tharreau D, Morris C, Sache I. 2017. Testing differences between pathogen compositions with small samples and sparse data. Phytopathology 107: 1199-1208 [pdf]


Mumford J, Leach AW, Holt J, Suffert F, Sache I, Moignot B, Hamilton RA. 2017. Integrating crop bioterrorism hazards into pest risk assessment tools. In: Gullino ML, Stack J, Fletcher J, Mumford J (Eds.), Practical tools for plant and food biosecurity, Springer, p. 121-142 ISBN 978-3-319-46897-6 [pdf]


Suffert F. 2017. Characterization of the threat resulting from plant pathogens use as anti-crop bioweapons: an EU perspective on agroterrorism. In: Gullino ML, Stack J, Fletcher J, Mumford J (Eds.), Practical tools for plant and food biosecurity, Springer, p. 31-60 ISBN 978-3-319-46897-6 [pdf]


Suffert F, Delestre G, Carpentier F, Walker AS, Gazeau G, Gélisse S, Duplaix C. 2016. Fashionably late partners have more fruitful encounters: impact of the timing of co-infection and pathogenicity on sexual reproduction in Zymoseptoria tritici. Fungal Genetics and Biology 92: 40-49 [pdf]


Morais D, Gélisse S, Laval V, Sache I, Suffert F. 2016. Inferring the origin of primary inoculum of Zymoseptoria tritici from differential adaptation of resident and immigrant populations to wheat cultivars. European Journal of Plant Pathology 145: 393-404. [pdf]


Morais D, Sache I, Suffert F*, Laval V. 2016. Is onset of Septoria tritici blotch epidemics related to local availability of ascospores? Plant Pathology 65: 250-260 10.1111/ppa.12408 [pdf] *co-last author


Suffert F, Ravigné V, Sache I. 2015. Seasonal changes drive short-term selection for fitness traits in the wheat pathogen Zymoseptoria tritici. Applied and Environmental Microbiology 81: 6367-6379 [pdf]


Siou D, Gélisse S, Laval V, Suffert F, Lannou C. 2015. Mutual exclusion between fungal species of the FHB complex in a wheat spike. Applied and Environmental Microbiology 81: 4682-4689. [pdf]


Morais D, Laval V, Sache I, Suffert F. 2015. Comparative pathogenicity of sexual and asexual spores of Zymoseptoria tritici (Septoria tritici blotch) on wheat leaves. Plant Pathology 64: 1429–1439 [pdf]


Siou D, Gélisse S, Laval V, Repinçay C, Bourdat-Deschamps M, Suffert F, Lannou C. 2015. Interactions between head blight pathogens: consequences on disease development and toxins production in wheat spikes. Applied and Environmental Microbiology 81: 957-965 [pdf]


Gautier A, Marcel T, Confais J, Crane C, Kema G, Suffert F, Walker A-S. 2014. Development of a rapid multiplex SSR genotyping method to study populations of the plant pathogenic fungus Mycosphaerella graminicola. BMC Research Notes 7: 373 [pdf]


Siou D, Gelisse S, Laval V, Repinçay C, Canalès R, Suffert F, Lannou C. 2013. Effect of wheat spike infection timing on Fusarium head blight development and mycotoxin accumulation. Plant Pathology 63: 390-399 [pdf]


Suffert F, Sache I, Lannou C. 2013. Assessment of quantitative traits of aggressiveness in Mycosphaerella graminicola on adult wheat plants. Plant Pathology 62: 1330-1341 [pdf]


Bernard F, Sache I, Suffert F, Chelle M. 2013. The development of a foliar fungal pathogen does react to leaf temperature! New Phytologist 198: 232-240 [pdf]


Reynaud P, Le Fay-Souloy C, Moignot B, Suffert F. 2012. The European PLANTFOODSEC project: Framework for a national approach to analyse and prioritise plant health risks. EuroReference 7: 32-35 (not peer-reviewed) [pdf]


Ben Slimane R, Bancal P, Suffert F, Bancal M-O. 2012. Localized septoria leaf blotch lesions in winter wheat flag leaf do not accelerate apical senescence during necrotrophic stage. Journal of Plant Pathology 94: 543-553 [pdf]


Suffert F, Sache I. 2011. Relative importance of different types of inoculum to the establishment of Mycosphaerella graminicola in wheat crops in north-west Europe. Plant Pathology 60: 878-889 [pdf]


Suffert F, Sache I, Lannou C. 2011. Early stages of Septoria tritici blotch epidemics of winter wheat: Build-up, overseasoning, and release of primary inoculum. Plant Pathology 60: 166-177 [pdf]


Sache I, Roy A-S, Suffert F, Desprez-Loustau M-L. 2011. Invasive plant pathogens in Europe. In: Biological invasions: Economic and environmental costs of alien plant, animal, and microbe species, Pimentel D (Eds.), CRC Press, London, 227-242 [pdf]


Suffert F. 2010. Emergences épidémiologiques non-conventionnelles et analyse de risque : le cas de la biosécurité agricole et de l'agroterrorisme. In: Barnouin J et Sache I (Eds), Les maladies émergentes. Épidémiologie chez le végétal, l'animal et l'homme, Quae Editions, p. 373-384 ISBN 978-2-7592-0510-3


Stack J, Suffert F, Gullino ML. 2010. Bioterrorism: A threat to plant biosecurity? In: Gullino ML et Strange RN (Eds), The role of plant pathology in food safety and food security, Springer, p. 115-132 [pdf]


Gosme M, Suffert F, Jeuffroy MH. 2010. Intensive versus low-input cropping systems: What is the optimal partitioning of agricultural area in order to reduce pesticide use while maintaining productivity? Agricultural Systems 103: 110-116 [pdf]


Barbier M, Sache I, Prete G, Suffert F. 2009. Cultures en péril ? L'affaire de tous. Pour La Science 65: 110-115 (not peer-reviewed) [pdf]


Suffert F, Latxague E, Sache I. 2009. Plant pathogens as agroterrorist weapons: Assessment of the threat for European agriculture and forestry. Food Security 1: 221-232 [pdf]


Suffert F, Barbier M, Sache I, Latxague E (2008) Biosécurité des cultures et agroterrorisme. Une menace, des questions scientifiques et une opportunité : réactiver un dispositif d’épidémiovigilance. Le Courrier de l'Environnement 56: 67-86 (not peer-reviewed) [pdf]


Suffert F, Lucas JM (2008) Lateral roots of carrot have a low impact on alloinfections involved in a cavity spot epidemic caused by Pythium violae. Journal of General Plant Pathology 74: 296-301 [pdf]


Suffert F, Delalande D, Prunier M, Andrivon D. 2008. Modulation of primary and secondary infections in epidemics of carrot cavity spot through agronomic management practices. Plant Pathology 57: 109-121 [pdf]


Suffert F, Montfort F. 2008. Pathometric relationships reveal epidemiological processes involved in carrot cavity spot epidemics. European Journal of Plant Pathology 122: 425-436 [pdf]


Suffert F. 2007. Cavity spot de la carotte, l’épidémiologie appliquée à la gestion des risques parasitaires. Comprendre et modéliser les mécanismes d’une maladie d’origine tellurique dans une perspective de protection intégrée. Phytoma 601: 36-40 (not peer-reviewed) [pdf]


Latxague E, Sache I, Pinon J, Andrivon D, Barbier M, Suffert F. 2007. A methodology for assessing the risk posed by the deliberate and harmful use of plant pathogens in Europe. EPPO Bulletin 37: 427-435 [pdf]


Desprez-Loustau ML, Robin C, Buée M, Courtecuisse R, Garbaye J, Suffert F, Sache I, Rizzo D. 2007. The fungal dimension of biological invasions. Trends in Ecology and Evolution 22: 472-480 [pdf]


Suffert F, Montfort F. 2007. Demonstration of secondary infection by Pythium violae in epidemics of carrot cavity spot using root transplantation as method of soil infestation. Plant Pathology 56: 588-594 [pdf]


Suffert F. 2007. Kinetics modelling of the carrot cavity spot caused by a complex of pathogens of the genus Pythium dominated by Pythium violae. Canadian Journal of Plant Pathology 29: 41-55 [pdf]


Suffert F, Guibert M. 2007. The ecology of a Pythium community in relation to the epidemiology of carrot cavity spot. Applied Soil Ecology 35: 488-501 [pdf]


Suffert F. 2005. A theoretical approach to the 'complementation' notion concerning strategies of crop protection. Phytoprotection 86: 89-92 [pdf]


Suffert F. 2003. L'utilisation volontaire d'agents phytopathogènes contre les cultures. Phytoma 563: 8-12 (not peer-reviewed) [pdf]


Suffert F. 2002. L'épidémiologie végétale, nouvelle discipline de guerre ? Lumière sur le bioterrorisme agricole, un enjeu émergent pour la recherche agronomique. Le Courrier de l'Environnement 47: 57-69 (not peer-reviewed) [pdf]

Supervised PhD projects

Carolina Orellana-Torrejon

(since 2018; co-director)

"Impact of varietal mixtures on local dynamics of resistance breakdown: case of inter-epidemic transmission of a virulence recently appeared in Zymoseptoria tritici populations" (ABIES)

Safa Ben Krima

(since 2018; co-supervisor)

"Adaptation of Zymoseptoria tritici to genetically heterogeneous durum wheat populations from Tunisia" (ABIES)

Anne-Lise Boixel

(2015-2020; co-director)

"Environmental heterogeneity, a driver of adaptation to temperature in foliar plant pathogen populations?" (ABIES)

Lydie Kerdraon

(2015-2019; director)

"Microbial diversity and pathogen-microbiome interactions in crop residues: the case of Zymoseptoria tritici and Leptosphaeria maculans in a wheat-oilseed rape system" (ABIES)

David Morais

(2011-2015; co-supervisor)

"Determinants of the early epidemic stages of wheat septoria leaf blotch: quantity, efficacy and origin of primary inoculum" [pdf] (ABIES)

Frédéric Bernard

(2009-2012; co-supervisor)

"The development of a foliar fungal pathogen does react to temperature, but to which temperature?" [pdf] (ABIES)