UR0407 Pathologie Végétale

Plant pathology

INRAE Provence-Alpes-Côte d'Azur

For a durable protection of horticultural crops

Our research focuses on the bacterial, fungal and viral diseases affecting fruit and vegetable crops  grown in the Mediterranean Basin. We study the biology and evolution of these microbial pathogens as well as their interactions with host plants, the environment and agricultural practices, to understand better the epidemiological processes and to propose the most suitable control methods with low inputs and no negative impact on the environment or human health.

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26 January 2026

By: Editorial board

Formation / Biology of Vector-Borne Diseases (BVBD) – France

We are pleased to announce the Biology of Vector-Borne Diseases (BVBD) – France summer school, to be held 1–5 June 2026 in Avignon, France. Several researchers from our research unit (Karine Berthier, Cindy Morris, and Alexandra Schoeny) will participate in this training.
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Habilitation to direct research / RIMBAUD Loup

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Congratulations to Loup, who successfully defended his habilitation to supervise research (HDR) on 6 November 2025 in Avignon. Modeller in epidemiology and evolution, he has been a research fellow in the Virology team since 1 September 2018.. His main research interest focus on the identification of efficient, cost-effective and durable strategies to manage plant diseases and especially those caused by viruses on vegetable crops.

Phage

Article / Ecological ubiquity and phylogeny drive nestedness in phages–bacteria networks and shape the bacterial defensome

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Feltin, C., Piry, S., Moury, B., Chateau, L., Berthier, K., Jacobs, J.M., Butchacas, J., Fenske, L., Ebeling-Koning, L., Smits, T.H.M., Morris, C.E., Torres-Barceló, C.

Best wishes 2026

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Let's sow science and reap solutions !

Guttation phenomenon on a young Gariguette strawberry leaf. In nature, the sap droplets exuded by the hydathodes benefit many insects that hydrate from them. Photo taken as part of the CASDAR project “PRICE”, which aims to study the effect of fertigation as a lever to reduce the risk of powdery mildew and aphids in strawberry crops.
Guttation phenomenon on a young Gariguette strawberry leaf. In nature, the sap droplets exuded by the hydathodes benefit many insects that hydrate from them.
Gorria pepper under the morning dew in Espelette. The culture of this hot pepper emblematic of the Basque Country has been threatened in recent years by severe epidemics of cucumber mosaic virus (CMV)
Gorria pepper under the morning dew in Espelette. The culture of this hot pepper emblematic of the Basque Country has been threatened in recent years by severe epidemics of cucumber mosaic virus (CMV)
Asymptomatic oakleaf lettuce surrounded by others infested with mirafiori lettuce big vein virus (MLBVV) observed during a farm's visit in Lot-et-Garonne (France)
Rot on an eggplant fruit caused by three sporulating fungi : Botrytis cinerea, Cladosporium sp., and Botryosporium sp. during a farm's visit in Lot-et-Garonne (France)
Rot on an eggplant fruit caused by three sporulating fungi : Botrytis cinerea, Cladosporium sp., and Botryosporium sp. during a farm's visit in Lot-et-Garonne (France)
Hypersensitivity reaction of a Chenopodium amaranticolor leaf inoculated with tomato spotted wilt virus (TSWV) observed under UV light
Hypersensitivity reaction of a Chenopodium amaranticolor leaf inoculated with Tomato spotted wilt virus (TSWV) observed under UV light
Detection of the DNA of the pathogenic bacterium Clavibacter michiganensis subsp michiganensis in tomato samples using the "Loop-mediated isothermal amplification" (LAMP) method
Detection of the DNA of the pathogenic bacterium Clavibacter michiganensis subsp michiganensis in tomato samples using the "Loop-mediated isothermal amplification" (LAMP) method
Detection of cucumber mosaic virus by Enzyme-Linked ImmunoSorbent Assay (ELISA) in wild plant samples, collected near pepper crops in Espelette (Basque Country)
Detection of cucumber mosaic virus by Enzyme-Linked ImmunoSorbent Assay (ELISA) in wild plant samples, collected near pepper crops in Espelette (Basque Country)
Light microscope observation of a Phoma lingam pycnidia expelling thousands of conidia. Microscopic preparation from leaf spots on pak choï cabbage (lactic blue staining)
Light microscope observation of a Phoma lingam pycnidia expelling thousands of conidia. Microscopic preparation from leaf spots on pak choï cabbage (lactic blue staining)
Visualization of micro-organisms that have grown in a Petri dish on KB medium, three days after the application of a young and asymptomatic leaf from a female kiwi plant
Visualization of micro-organisms that have grown in a Petri dish on KB medium, three days after the application of a young and asymptomatic leaf from a female kiwi plant
Melon seedlings produced and transplanted by the experimental facilities team (IEPV)
Melon seedlings produced and transplanted by the experimental facilities team (IEPV)
Delicate care applied to the manual transplanting of melon seedlings
Delicate care applied to the manual transplanting of melon seedlings
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