Début de l'école chercheur.e en aérobiologie "Tracking the #dispersal and #impact of #biological #particles that ride #atmospheric #highways" organisée par C. Leyronas et @dbszane.bsky.social avec le soutien financier de @inrae-dpt-spe.bsky.social, Ecodiv, @sfp-france.bsky.social, FTLV INRAE !

Contrasting transcriptional responses and genetic determinants underlie Zymoseptoria tritici adaptation mechanisms to simulated host defense environments www.biorxiv.org/content/10.64898/2026.04...

#Rust diseases of #wheat and barley in Uruguay: over three decades of pathogen dynamics and resistance breeding doi.org/10.1080/0706...

#Rust on early dog-violet (#Viola reichenbachiana) caused by #Puccinia violae in my garden (Les Clayes-sous-Bois, FR).

Professor in Epidemiology/Pathology for Agricultural Crop Plants - Ledig stilling på Aarhus Universitet Ledig stilling ved Institut for Agroøkologi - Plantepatologi og Mikrobiologi, Aarhus Universitet

Exciting position open @aarhusuniint.bsky.social: Professor in Epidemiology/Pathology for agricultural crop plants www.au.dk/om/stillinge...

Virulence gains in the #Puccinia striiformis f. sp. tritici PstS10 lineage correlate with expression polymorphism in a candidate Avr effector doi.org/10.1038/s420...

Genome–host association mapping reveals wheat pathogen genes involved in host specialization - Nature Plants This study introduces genome–host association (GHA), leveraging natural epidemics to map the genetic landscape of host adaptation in the pathogen Zymoseptoria tritici. Applied to 832 wheat fungal stra...

Thrilled to share our paper now out in Nature Plants 🎉
We developed a genome-host association (GHA) approach to study pathogen adaptation directly from field metadata by using the originating host cultivar as phenotype.

www.nature.com/articles/s41...

#Geastrum fimbriatum (Bois de Morval, Cléry-en-Vexin, FR).

Winter stalkball (#Tulostoma brumale) (Bois de Morval, Cléry-en-Vexin, FR).

#Smut fungus #Urocystis colchici on autumn crocus (Colchicum autumnale) (Bois de Morval, Cléry-en-Vexin, FR).

#Rust of common bluebell (Hyacinthoides non-scripta), caused by #Uromyces hyacinthi, like splashes of molten metal (Bois de Morval, Cléry-en-Vexin, FR).

#Smut fungus #Urocystis anemones on wood anemone (Anemone nemorosa) (Bois de Morval, Cléry-en-Vexin, FR).

#Rust of common nettle (Urtica dioica) caused by #Puccinia urticata s.l. (Bois de Morval, Cléry-en-Vexin, FR).

#Rust on broad buckler-fern (#Dryopteris dilatata) caused by #Milesina kriegeriana (Bois de Morval, Cléry-en-Vexin, FR).

#Rust on dog's #mercury (Mercurialis perennis) caused by #Melampsora rostrupii (Bois de Morval, Cléry-en-Vexin, FR).

#Rust of Mahonia (#Berberis aquifolium), caused by #Cumminsiella mirabilissima (Bois de Morval, Cléry-en-Vexin, FR).

#Rust of cuckoopint (Arum mauclatum) caused by #Puccinia sessilis, here hyperparasitized by #Tuberculina persicina (Bois de Morval, Cléry-en-Vexin, FR).

Morchella esculenta (Bois de Morval, Cléry-en-Vexin, FR).

We look forward to a pathogens webinar with Sarrah Ben M’Barek CRRGC, Tunisia on Unravelling Wheat–Fungal Pathogen Dynamics for Resilient Crops in Tunisia.
Tuesday, April 21st 2026
Join us:
www.wheatinitiative.org/new-events/a...
@karchuntan.bsky.social
@ReemWheat.bsky.social

The SFP's new Board of Directors met in Paris and elected its new Executive Committee:
Congrats to Mathias Choquer (@mathiaschoquer.bsky.social), President; Maryam Khalili (@maryamkhalili.bsky.social), Treasurer; and Maël Baudin (@baudinmael.bsky.social), Secretary General.

📷 @mrmbuee.bsky.social

Retrouvez ici les rouilles des éphémérophytes que l'on peut rencontrer actuellement dans les Yvelines ▶️ bioger.versailles-saclay.hub.inrae.fr/content/down...

#Rust on #Juniperus communis caused by #Gymnosporangium clavariiforme, observed at the same site as last year, one week later (Herbeville, FR).

#Rust of common #spindle (Euonymus europaeus) caused by #Melampsora euonymi-caprearum (Les Clayes-sous-Bois, FR).

#Calloria neglecta on dead nettle stems (#Urtica dioica) (Les Clayes-sous-Bois, FR).

#Rust on meadow buttercup (#Ranunculus acris) caused by #Aecidium ranunculi-acris, here showing the pycnial stage (Les Clayes-sous-Bois, FR).

The classical Eastern 'chocolate #rust' on Ficaria verna (lesser celandine) caused by #Uromyces ficariae (Les Clayes-sous-Bois, FR).

#Rust on Ficaria verna (lesser celandine) caused by #Uromyces poa s.l. (Les Clayes-sous-Bois, FR).

#Rust of moschatel (Adoxa moschatellina), with both species #Puccinia albescens (aecia) and P. adoxae (telia) on the same leaf stem (Les Clayes-sous-Bois, FR).

#Rust of moschatel (Adoxa moschatellina), caused by #Puccinia albescens, here with aecia, uredinia & telia on a single leaf (Les Clayes-sous-Bois, FR). The telia differ from P. adoxae: evenly distributed on the underside without causing deformation, also releasing urediniospores.

#Rust of moschatel (#Adoxa moschatellina), caused by #Puccinia adoxae (Les Clayes-sous-Bois, FR).