New preprint out! 🚀
biorxiv.org/content/10.6...

We mapped how septins organise infection in the rice blast fungus—and found they are far more dynamic than previously thought.

Thread 👇

#FungalPathogenesis #CellBiology #septins

Lichen fungal effectors are potentially targeted to algal chloroplasts ⁦‪@puginiercamille.bsky.social ‬⁩ #Fungal26

Halpin Scholars Dinner- a programme that has had an enormous impact on some young scientists and continues to do so, on both rice blast and lichen research. @thesainsburylab.bsky.social

Fungal symbioses: A multiplicity of fungi in the lichen union Increasing evidence suggests that lichens are not just a partnership between one fungus and one alga or cyanobacterium but may contain multiple intera…

New Dispatch article on the multitude of fungal symbionts now being reported in lichens, led by @puginiercamille.bsky.social

www.sciencedirect.com/science/arti...

A nice read from @puginiercamille.bsky.social and @talbotlabtsl.bsky.social !

Fungal symbioses: A multiplicity of fungi in the lichen union Increasing evidence suggests that lichens are not just a partnership between one fungus and one alga or cyanobacterium but may contain multiple intera…

Thrilled to see this published! 😄
Our dispatch examines potential additional fungal symbionts in lichen partnerships and the key challenges in unraveling their biology.

Thanks for involving me in this @talbotlabtsl.bsky.social

@currentbiology.bsky.social

www.sciencedirect.com/science/arti...

An unconventional Rubisco small subunit underpins the CO2-concentrating organelle in land plants In many algae, photosynthesis is boosted by biophysical CO2-concentrating mechanisms, which pack the CO2-fixing enzyme Rubisco into liquid-like organelles called pyrenoids. Engineering C3 crops with a...

Our work on #hornwort #pyrenoids is finally out in @science.org! 🎉 We uncovered how hornworts pack their Rubisco into pyrenoids and successfully recreated them in Arabidopsis. A key step toward engineering more efficient photosynthesis in crops @btiscience.bsky.social www.science.org/doi/10.1126/...

Poplar CLE peptides promoting ectomycorrhizal symbiosis identified through genome-wide analysis of responsive small secreted peptides Trees use CLAVATA3/EMBRYO SURROUNDING REGION-related (CLE) peptides to promote ectomycorrhizal symbiosis, revealing an additional regulatory layer in tree–

🧵 New paper out in @PlantPhysiology! We asked: how do trees talk to their fungal partners during ectomycorrhizal symbiosis? Turns out, tiny secreted peptides play a big role. 1/

Read the full paper here 👇
academic.oup.com/plphys/advan...

Fond farewell to Vincent Were who has made such a great contribution to ⁦‪@thesainsburylab.bsky‬⁩ and been in my group since Exeter days, but will start a new adventure ⁦‪@johninnescentre.bsky‬⁩ !

Root cross-section of Aeschynomene evenia infected with Aphanomyces euteiches. Mycelium is stained green.

New year, new #pathosystem!
Yes, #Aeschynomene evenia can be used as a model to study #legume_Immunity — together with #Aphanomyces euteiches, the pea grower’s worst nightmare.
Check out our preprint on bioRxiv : www.biorxiv.org/cgi/content/... . Special congrats to @madeleinebaker.bsky.social !

Congrats @madeleinebaker.bsky.social et al!!

A novel pathosystem between Aeschynomene evenia and Aphanomyces euteiches reveals new immune components in quantitative legume root-rot resistance. Legumes are pivotal for sustainable agriculture, yet their productivity is hindered by soilborne pathogens such as Aphanomyces euteiches . This study introduces Aeschynomene evenia as a novel model to...

🚨 New preprint alert! 🚨
Excited to share my first preprint from my PhD! 🎉
We introduce a novel Aeschynomene evenia – Aphanomyces euteiches pathosystem to explore links between quantitative resistance and symbiosis in legumes. 🌱🔬
🧾 www.biorxiv.org/cgi/content/...

🧵 Thread:

1/9

Still a lot to discover! I wrote a short piece on flowering for
@the-node.bsky.social 🌺⏳ Thanks @turchil.bsky.social for the editing and @hsuanpai.bsky.social for the artwork 🤩🎨

Thank you Nick!! Glad to have the opportunity to keep on working on lichens 😊😊

The image shows a picture of Camille Puginier, Postdoctoral Researcher in the Talbot group and Lecoq prize winner, saying “This award is a real honour. I am delighted that lichen research is in the spotlight, as these fascinating organisms still hold many mysteries."

Congratulations to @puginiercamille.bsky.social on her @academiesciences.bsky.social prize for her PhD work at @lrsv-toulouse.bsky.social!

@talbotlabtsl.bsky.social says "I am really proud to see Camille receive this honour and excited about the expertise she's brought to my group"

buff.ly/SCb17kf

Thanks Max!! 😁

Thanks Paloma 😁

Thanks Leo!! 😁

Thanks mister Vangeli, let’s celebrate when I’m back 🥳🥳

Huge honor to receive this price! Glad to see the lichen research rewarded with such a distinction
Thanks @pierremarcdelaux.bsky.social and @kellerjeanphd.bsky.social for your SUPERvision ✨

Merci @academiesciences.bsky.social pour cette opportunité et cette belle cérémonie!

Huge congratulations @puginiercamille.bsky.social for receiving the Prix Locoq from the French Academy of science @academiesciences.bsky.social !!

@lrsv-toulouse.bsky.social

www.univ-tlse3.fr/actualite-de...

IT’S EVERYWHERE

So glad to see this out!!!
Congrats @katharinamel1.bsky.social @leocastanedo.bsky.social et al 🥳

Symbiotic diversification relies on an ancestral gene network in plants Symbioses have been fundamental to colonization of terrestrial ecosystems by plants and their evolution. Emergence of the ancient arbuscular mycorrhizal symbiosis was followed by the diversification o...

1/ It is my pleasure to share the latest preprint of the team: "Symbiotic diversification relies on an ancestral gene network in plants"

doi.org/10.1101/2025...

Here, we identified and functionally validated a novel master regulator of intracellular symbioses!

A thread ...
#PlantScience

Sooo happy to see this preprint out 🍄☘️!

Congratulations @leocastanedo.bsky.social @katharinamel1.bsky.social et al. !

It has been a long journey, from developing ericoid-mycorrhizae in the lab (Leo) to the genetics in Marchantia (Katharina), and many other details (#teamwork)

Yes!! Congrats Baptiste et al 🥳

Exploring fern pathosystems and immune receptors to bridge gaps in plant immunity - BMC Biology Land plants include angiosperms, gymnosperms, bryophytes, lycophytes, and ferns, each of which may deploy distinct strategies to resist pathogens. Here, we investigate fern-pathogen interactions by characterizing novel pathosystems and analyzing the diversity of fern immune receptors. A collection of fern species was inoculated with a diverse set of filamentous microbes, and disease symptoms were assessed. We further leveraged published genome mining tools to analyse the diversity of receptor-like kinases, receptor-like proteins (RLKs/RLPs) and nucleotide-binding and leucine-rich repeats (NLRs), along with key immune signalling components, in ferns. Our results reveal that ferns exhibit a range of responses to pathogens, including putative non-host resistance and more specific resistance mechanisms. Among ten ferns tested, Pteris vittata displays the broadest spectrum of pathogen compatibility. Genome mining indicates that ferns encode a diverse repertoire of putative immune receptors, antimicrobial peptides, and mediators of systemic acquired resistance. Ferns possess numerous RLKs/RLPs, resembling those required for cell-surface immunity in angiosperms. They also encode diverse NLRs, including sub-families lost in flowering plants. These findings provide insights into disease resistance evolution and open promising perspectives for crop protection strategies.

1\ bmcbiol.biomedcentral.com/articles/10....
🌿🌿Our article on fern immunity has been peer-reviewed 🌿🌿
Thanks to @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social and @jacquet-chris.bsky.social

a quick thread 🧵 1/4

Various ferns species inoculated with S. sclerotiorum.

Want to see ferns under attack and how they respond to pathogens? Check out our latest paper!
doi.org/10.1186/s129...
Congrats on this huge team effort to @baptistebio.bsky.social @madeleinebaker.bsky.social @kellerjeanphd.bsky.social @maximebonhomme.bsky.social @pierremarcdelaux.bsky.social

EPP1 is an ancestral component of the plant Common Symbiosis Pathway The success of plants on land has been enabled by mutualistic intracellular associations with microbes for 450 million years ([Delaux and Schornack 2021][1]). Because of their intracellular nature, th...

So happy to see the latest preprint of the team out! www.biorxiv.org/content/10.1...
The continuation of a long standing project started by @oswaldovaldesl.bsky.social in @jeanmichelane.bsky.social‘s lab. 1/7 🧵

~12 years after we coined it EPP1 with @oswaldovaldesl.bsky.social one afternoon when we were postdoc with @jeanmichelane.bsky.social!

Congrats @melaniekrich.bsky.social @tatiana-vernie.bsky.social et al. for the hard work!

EPP1 is the fourth member of the Common Symbiosis Pathway 🍄🌱!