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Reposted by Katharina Melkonian

PM Delaux @pierremarcdelaux.bsky.social · 2d

~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 🍄🌱!

Mélanie Rich 🌱🍄 @melaniekrich.bsky.social · 2d

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 🧵

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...

www.biorxiv.org

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Reposted by Katharina Melkonian

oswaldovaldesl.bsky.social @oswaldovaldesl.bsky.social · 6d

www.biorxiv.org/content/10.1...
Great story in collaboration with @pierremarcdelaux.bsky.social and @jeanmichelane.bsky.social groups. EPP1 story continues after many years of collaborations with Pierre-Marc and Jean-Michel!!!

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). Because of their intracellular nature, the est...

www.biorxiv.org

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Reposted by Katharina Melkonian

bioRxiv Plant Bio @biorxiv-plants.bsky.social · 7d

EPP1 couples receptor activation to cytoplasmic signaling in root nodule symbiosis https://www.biorxiv.org/content/10.1101/2025.09.29.679184v1

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Katharina Melkonian @katharinamel1.bsky.social · 16d

#PlantScience

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Reposted by Katharina Melkonian

PM Delaux @pierremarcdelaux.bsky.social · 16d

A milestone for plant genomics just out @natgenet.nature.com

130 bryophyte genomes!

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

Bryophytes hold a larger gene family space than vascular plants - Nature Genetics

A super-pangenome analysis incorporating 123 newly sequenced bryophyte genomes reveals that bryophytes exhibit a larger number of unique and lineage-specific gene families than vascular plants.

www.nature.com

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Katharina Melkonian @katharinamel1.bsky.social · Sep 1

Congrats, Tonni!! 🥳

Katharina Melkonian @katharinamel1.bsky.social · Aug 7

#PlantScience

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Reposted by Katharina Melkonian

Hiro Nakagami @grandpahiro.bsky.social · Aug 7

Happy to see that 2 articles from our group led by @katharinamel1.bsky.social and David(Jeon) are highlighted.

Studies supported by @watertoland.bsky.social

Janine Fürst-Jansen @jfuerst-jansen.bsky.social · Aug 7

🌿 Excited to share our new editorial on streptophyte trait evolution in the latest virtual issue from @newphyt.bsky.social, with @jandevries.bsky.social & @Ralph_Panstruga. The issue features several articles from MAdLand collaborations @watertoland.bsky.social
Check it out: doi.org/10.1111/nph....

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Katharina Melkonian @katharinamel1.bsky.social · Jul 17

#PlantScience

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Katharina Melkonian @katharinamel1.bsky.social · Jul 17

It's TODAY! Don't miss it!

Madeleine Baker @madeleinebaker.bsky.social · Jul 17

Ready for the poster session at #2025ISMPMI !
Please come chat about quantitative resistance to Aphanomyces in a new legume pathosystem ! 🌿🛡️
Thanks to @sfp-france.bsky.social for helping me be here !
P-182

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Katharina Melkonian @katharinamel1.bsky.social · Jul 14

Nice dinner in best company #2025ISMPMI with @nicolasfreiditfrey.bsky.social @asosalop.bsky.social @yijiaaaaaa.bsky.social @mungfoo.bsky.social @hynmn-jeong.bsky.social 😊

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Katharina Melkonian @katharinamel1.bsky.social · Jul 14

Don't miss the talk by @nicolasfreiditfrey.bsky.social this morning, 11:40-11:50, in the concurrent session: Symbiosis and mutualism #2025ISMPMI - He will present some really cool results (yes, I am 100% biased)!

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Reposted by Katharina Melkonian

PM Delaux @pierremarcdelaux.bsky.social · Jul 13

@katharinamel1.bsky.social and @baptistebio.bsky.social ! I messed up with the handles in the first post..

PM Delaux @pierremarcdelaux.bsky.social · Jul 13

Attending #ISMPMI2025?

Don't miss posters from our team:
▶️ @madeleinebaker.bsky.social (P-182)
▶️@baptistebio.bsky.social (P-089) and ▶️@katharinamel1.bsky.social (P-407)

▶️@nicolasfreiditfrey.bsky.social (P-425) + talk tomorrow in the Symbiosis/Mutualism session

☘️ #symbiosis #immunity #evolution

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Katharina Melkonian @katharinamel1.bsky.social · Jul 13

All set up for the poster session tomorrow #2025ISMPMI Please join if you wanna know more about transcription factor complexes that play roles during AMS in #MyMarchantia P-407

And, also see posters P-089 @baptistebio.bsky.social and P-182 @madeleinebaker.bsky.social

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Reposted by Katharina Melkonian

Baptiste Castel @baptistebio.bsky.social · Jul 13

Well arrived at #2025ismpmi with @madeleinebaker.bsky.social (Poster P-182) @nicolasfreiditfrey.bsky.social (talk at symbiosis concurrent session) and @katharinamel1.bsky.social (P-407)

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bioRxiv Plant Bio @biorxiv-plants.bsky.social · Jul 13

Structural basis for size-selective perception of chitin in plants https://www.biorxiv.org/content/10.1101/2025.07.09.663820v1

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Reposted by Katharina Melkonian

Sebastian Schornack @dromius.bsky.social · Jul 12

#omgn2025 @dariuskos.bsky.social presenting research on a Marchantia transcription factor which controls its reproductive structures and is stress-regulated.
Read more about it here: www.biorxiv.org/content/10.1...

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Katharina Melkonian @katharinamel1.bsky.social · Jul 12

On our way to Cologne 🥳 #2025ISMPMI with @nicolasfreiditfrey.bsky.social @baptistebio.bsky.social @madeleinebaker.bsky.social See you there!!!

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Katharina Melkonian @katharinamel1.bsky.social · Jul 9

#PlantScience

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Reposted by Katharina Melkonian

bioRxiv Plant Bio @biorxiv-plants.bsky.social · Jul 9

Nissolia brasiliensis as a non-nodulating model legume https://www.biorxiv.org/content/10.1101/2025.07.08.663655v1

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Reposted by Katharina Melkonian

Ève Teyssier @eveteyssier.bsky.social · Jun 12

I’m very happy that my main PhD work, under the supervision of @malick-mbengue.bsky.social, found a home in @pnas.org
Two days before my PhD defence! 🎉 (1/6)

A plant Lysin Motif Receptor-Like Kinase plays an ancestral function in mycorrhiza | PNAS

Arbuscular mycorrhiza (AM) with soilborne Glomeromycota fungi was pivotal in the conquest of land by plants almost half a billion years ago. In flo...

www.pnas.org

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Katharina Melkonian @katharinamel1.bsky.social · May 17

#PlantScience

Katharina Melkonian @katharinamel1.bsky.social · May 17

"Migration and Structural Implication of Cyanobacteria in Biological Soil Crusts in Response to Water and Particle Burial"

Read here:
www.sciencedirect.com/science/arti...

Migration and Structural Implication of Cyanobacteria in Biological Soil Crusts in Response to Water and Particle Burial

Cyanobacteria are constructors of biological soil crusts (BSCs), their motility is thought to be crucial for surviving burial and BSC expansion. In th…

www.sciencedirect.com

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Katharina Melkonian @katharinamel1.bsky.social · May 16

Check out the new homepage of Barbara & Michael Melkonian: b-m-melkonian.de 🥳

b-m-melkonian.de

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PM Delaux @pierremarcdelaux.bsky.social · Apr 23

A fantastic resource for fern biology @natplants.nature.com 🔽!

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

Taking about ferns, are you interested by their immune system? Have a look at our recent preprint by @baptistebio.bsky.social @jacquet-chris.bsky.social 🔽

www.biorxiv.org/content/10.1...

Comparative transcriptomics in ferns reveals key innovations and divergent evolution of the secondary cell walls - Nature Plants

New fern transcriptomes reveal repeated whole-genome duplications, unique gene families and distinct lignocellulosic evolution, providing a comprehensive database that underscores the ancient divergen...

www.nature.com

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