Tessera
Folgen

Muriel Viaud

@muriel-viaud.bsky.social

Researcher at INRAE, Université Paris-Saclay # Fungal genetics, phytopathology, specialized metabolites Botrytis, Colletotrichum https://bioger.versailles-saclay.hub.inrae.fr/equipes/eccp-effectors-of-cellular-communication-at-the-fungal-plant-interface

29 Posts170 Follower155 Folgt
Frédéric Suffert@wheatpath.bsky.social · 2w ago

📣 Offre de #stageM2 dans notre équipe #ADEP @inrae-bioger.bsky.social en #phytopathologie: "Molecular and phenotypic validation of fungal genes involved in the adaptation of #Zymoseptoria tritici to bread #wheat and durum wheat". Détails ici ▶️ bioger.versailles-saclay.hub.inrae.fr/toutes-les-o...

Offre de stage M2 (6mois)| Équipe ADEP - Année 2026-2027

Intitulé du stage : Molecular and phenotypic validation of fungal genes involved in the adaptation of Zymoseptoria tritici to bread wheat and durum wheat

bioger.versailles-saclay.hub.inrae.fr

Eos@eos.org · 2w ago

Underground fungi networks help many of the plants on Earth survive. A new technique images these networks in their natural environment for the first time. 🧪 Research published in @newphyt.bsky.social. Comments from @thecrobe.bsky.social @spun.earth @vuamsterdam.bsky.social. eos.org/articles/fun...

Fungi Are Holding the Food Web Together. New Research Images This Underground Network. - Eos

By combining computer tomography—the same technology used for medical scans—with a high-powered particle accelerator, researchers have imaged the network of roots, fungal structures, and soil together...

eos.org

Daniel Croll@danielcroll.bsky.social · last mo.

Our lab is looking for PhD students to join us in 2027 🎓🎉 The projects can be structured around our research directions: - Transposable element dynamics - Fungal pangenomics - ML/language model genomics applications - Pathogen adaptation More here pathogen-genomics.org ("Jobs") and please share! 🙏

Evolutionary genomics of pathogens

Croll lab at University of Neuchatel. The lab of Daniel Croll wants to understand how pathogens evolve to cause disease. For this, we mainly focus on major crop pathogens to unravel mechanisms of rapi...

pathogen-genomics.org

Muriel Viaud@muriel-viaud.bsky.social · 3mo ago

Encore beaucoup de produits naturels bioactifs à découvrir chez les champignons 🍄 et un poste d'ingénieur chimiste ouvert à la mobilité à BIOGER !

@inrae-bioger.bsky.social · 3mo ago

Trois postes sont ouverts en mobilité à BIOGER (91) • « Responsable de serres et chambres de culture » : jobs.inrae.fr/mobilite/cam... • « Gestionnaire de parc informatique » : jobs.inrae.fr/mobilite/cam... • "Ingénieur.e en analyse chimique des produits naturels" : jobs.inrae.fr/mobilite/cam...

The Rokas Lab at Vanderbilt University@rokaslab.bsky.social · 4mo ago

Interested in how #fungi came about on this planet? If so, take a look at my new article that just came out in @annualreviews.bsky.social. doi.org/10.1146/annu...

The Origin and Early Evolution of Fungi: Challenges, Inferences, and Principles

Fungi are widespread on our planet and essential for life as we know it, but how did they come about? Their last common ancestor lived hundreds of millions of years ago, but its characteristics, and t...

doi.org

Daniel Croll@danielcroll.bsky.social · 4mo ago

🔔 Our synthesis on what’s going on in the field of TE control and RIP in the fungal world! Out now in Trends in Genetics!

Thomas Badet@tbadet.bsky.social · 4mo ago

Nearly a year after our symposium on Repeat-Induced Point (RIP) mutations, I’m happy to share the fruit of some of our discussions. The fungal RIP hypermutator mechanism has deep eukaryotic roots www.sciencedirect.com/science/arti... We hope to spark interest in this underappreciated mechanism.

Evolution of major eukaryotic genome defense systems. The figure is organized along two axes representing core mechanistic features (homology recognition, small interfering RNA, and heterochromatin assembly) and their lineage-specific elaborations. We hypothesize that a recombination-independent DNA homology recognition system present in the eukaryotic common ancestor facilitated the emergence of both heterochromatin assembly and small RNA-based repeat silencing. From this conserved ancestral core, lineage-specific gene neofunctionalizations gave rise to distinct defense pathways: the RdDM pathway in plants; the piRNA and KRAB–ZFP pathways in vertebrates; and the repeat-induced point mutation (RIP), methylation induced premeiotically (MIP), MSUD, and tandem repeat-induced sexual silencing (TRISS) systems in filamentous ascomycete fungi. Question marks indicate steps for which the molecular mechanisms remain unknown.
Emile Gluck-Thaler@mycomile.bsky.social · last yr.

We dive into the dynamics of #starships 🚀 in a fungal pathogen to ask: how might these giant #transposons impact human health? We find they drive genome-wide variation, encode clinically-relevant traits and even transpose within the same strain! 🍄🧪 out today in mBio #goteam doi.org/10.1128/mbio...

Giant transposons promote strain heterogeneity in a major fungal pathogen | mBio

No “one size fits all” option exists for treating fungal infections in large part due to genetic and phenotypic variability among strains. Accounting for strain heterogeneity is thus fundamental for d...

doi.org

Nick Talbot@talbotlabtsl.bsky.social · 4mo ago

Peer-reviewed version of our study led by @aliceeseola.bsky.social first seen on @biorxiv-cellbio.bsky.social showing the exquisite level of control of organelle trafficking & autophagy exerted during plant infection by the blast fungus. Thanks to all co-authors. www.cell.com/cell-reports...

Synchronous spatiotemporal control of autophagy and organelle trafficking is necessary for infection by Magnaporthe oryzae

The blast fungus forms a force-generating appressorium for plant infection. Eseola et al. show how individual spore cells adopt distinct fates, trafficking organelles to the appressorium or undergoing...

cell.com

Muriel Viaud@muriel-viaud.bsky.social · 4mo ago

Happy to share our work! 🍄🍇 Botrytis cinerea grapevine-specialized strains harbor a specific repertoire of transposons. While retrotransposon-derived small RNAs do not appear to play a significant role in virulence on grapevine, a new giant transposon—a #Starship— confers arsenic resistance.

bioRxiv Genomics@biorxiv-genomic.bsky.social · 4mo ago

Role of transposons in the specialization of Botrytis cinerea to grapevine: Insights into small RNAs and a new Starship https://www.biorxiv.org/content/10.64898/2026.05.30.728154v1

Fundación MEDINA@medinadiscovery.bsky.social · 5mo ago

Excited to share our latest publication in the Journal of Natural Products! This research was carried out within the framework of the HOTBIO project, in collaboration with University of Galway. 🔗 Read the article here: pubs.acs.org/doi/10.1021/...

Sulphopreussomerins: Sulfur-Containing Preussomerins Isolated from the Marine-Derived Fungus Pyrenochaetopsis indica

The organic extract of Pyrenochaetopsis indica CF-301929, a fungal strain collected from the Coral Sea in Australia, showed broad-spectrum activity against the fungal phytopathogens Zymoseptoria tritici, Colletotrichum acutatum, Fusarium proliferatum, and Magnaporthe grisea. After extensive purification, five compounds were isolated, including three new sulfur containing preussomerins 1–3 along with two previously described molecules, ascochytatin (4) and preussomerin G (5). The new compounds incorporate rare thioglycolic or 2-hydroxy-3-mercaptopropionic acid moieties in their structures, and they represent the first members of a new class of preussomerins that we have named sulphopreussomerins. Multiple spectroscopic analyses, including HRESIMS and 1D/2D NMR experiments were used to elucidate their structures while the proposed absolute configuration of compound 1 was assigned by comparison of the experimental and theoretical ECD spectra. When tested against a fungal phytopathogen panel, preussomerin G exhibited, as previously reported, strong antifungal activity and cytotoxicity, whereas sulphopreussomerin A and ascochytatin showed moderate antifungal activity against Z. tritici with no detectable cytotoxicity.

pubs.acs.org

New Phytologist@newphyt.bsky.social · 6mo ago

What is the origin of South Africa's invading #mushrooms? The 'fly agaric' is the famous red-and-white-spotted mushroom of fairy tales. But like all good stories, this fairy tale has a dark twist: the mushroom is invasive on multiple continents, including in Africa. youtu.be/ILLT154Byw0 🧵1/3

What is the origin of South Africa's invading mushrooms?

The 'fly agaric' is the famous red-and-white-spotted mushroom of fairy tales. But like all good stories, this fairy tale has a dark twist: the mushroom is invasive on multiple continents, including…

youtu.be