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Jacquet-chris

@jacquet-chris

Professor of plant pathology at the University of Toulouse 3. @LRSV. Interested in plant-microbe interactions- โ˜˜๏ธ๐Ÿชด๐Ÿ„๐ŸŒณ๐ŸŒพ #oomycete - #Fungi #Medicago. #Marchantia - #Ferns #travels & rugby๐Ÿ‰!

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19.11.2024
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Latest posts by Jacquet-chris @jacquet-chris

Nikolas and I just published our insights on CLEs in plantโ€“bio interactions. Too short to cover everything, but we hope it gets you also excited about these peptides. Thanks to @newphyt.bsky.social for the opportunity

06.02.2026 19:10 ๐Ÿ‘ 30 ๐Ÿ” 15 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Marchantia polymorpha lines displaying various level of resistance after inoculation with Colletotrichum  nymphaeae

Marchantia polymorpha lines displaying various level of resistance after inoculation with Colletotrichum nymphaeae

What can we learn from the first GWAS on bryophyte immunity? Have these plants evolved immune mechanisms similar to or different from those of angiosperms? (Spoiler: both!)
Our latest paper is out in PNAS! www.pnas.org/doi/10.1073/pnas.2532723123 #Marchantia #Colletotrichum #EVOteam #LRSV

05.02.2026 13:50 ๐Ÿ‘ 20 ๐Ÿ” 11 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Picture of Marchantia accessions Tak-1 and CA inoculated with Colletotrichum numpheae for 1, 3 and 6 days.

Picture of Marchantia accessions Tak-1 and CA inoculated with Colletotrichum numpheae for 1, 3 and 6 days.

4/9 After characterizing the infection strategy of Colleto (with the help and guidance of @baptistebio.bsky.social and @jacquet-chris.bsky.social), Karima soon realized that the #MyMarchantia accessions we have in our collection were not all sensitive to that beast !

05.02.2026 10:57 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
PNAS Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

1/9 Our latest paper on immunity mechanisms in Marchantia just out @pnas.org ! ๐Ÿ”ฝ

Close collaboration between our former PhD students @karimaelm.bsky.social and @chloe-beaulieu.bsky.social !

and the old gard @jacquet-chris.bsky.social @maximebonhomme.bsky.social

www.pnas.org/doi/10.1073/...

05.02.2026 10:57 ๐Ÿ‘ 51 ๐Ÿ” 35 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 2
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Weโ€™re looking for a postdoc to investigate Pseudomonas viridiflava virulence across diverse plant lineages. The 3yr position will combine plant and microbial molecular biology to understand core processes of infection - email for more info & apply online @ www.jic.ac.uk/vacancies/po...

14.01.2026 14:53 ๐Ÿ‘ 38 ๐Ÿ” 28 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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๐ŸŒŸ AeRLCK2 & AeCRK2: new players in immunity & symbiosis
Mutations in two Nod-independent symbiotic genes heightened disease resistance.โšก

8/9

12.01.2026 13:13 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

๐ŸคทWhatโ€™s new?
Unlike many model legumes, Aeschynomene evenia forms symbiosis with rhizobia without Nod factors! This makes it a unique model to explore how plants balance immunity and symbiosis with specific, Nod-independent pathways. ๐Ÿฆ ๐Ÿค๐ŸŒฑ

3/9

12.01.2026 13:09 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
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...

๐Ÿšจ New preprint alert! ๐Ÿšจ
Excited to share my first preprint from my PhD! ๐ŸŽ‰
We introduce a novel Aeschynomene evenia โ€“ Aphanomyces euteiches pathosystem to explore links between quantitative resistance and symbiosis in legumes. ๐ŸŒฑ๐Ÿ”ฌ
๐Ÿงพ www.biorxiv.org/cgi/content/...

๐Ÿงต Thread:

1/9

12.01.2026 13:08 ๐Ÿ‘ 17 ๐Ÿ” 12 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 1

๐ŸŽ‰Why is this exciting?
Understanding genes like AeRLCK2 and AeCRK could help us engineer crops that resist pathogens without compromising beneficial symbiosis.
A step toward more resilient legumes! ๐Ÿ€
๐Ÿ™Huge thanks to @baptistebio.bsky.social, @jacquet-chris.bsky.social & all other co-authors ๐Ÿ™Œ

9/9

12.01.2026 13:15 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Root cross-section of Aeschynomene evenia infected with Aphanomyces euteiches. Mycelium is stained green.

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 โ€” together with #Aphanomyces euteiches, the pea growerโ€™s worst nightmare.
Check out our preprint on bioRxiv : www.biorxiv.org/cgi/content/... . Special congrats to @madeleinebaker.bsky.social !

12.01.2026 09:18 ๐Ÿ‘ 16 ๐Ÿ” 9 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Exciting new knowledge on ferns immunity, a very nice work led by @baptistebio.bsky.social, and @jacquet-chris.bsky.social !
Check the thread of @baptistebio.bsky.social !
โฌ‡๏ธ

13.10.2025 10:30 ๐Ÿ‘ 1 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Various ferns species inoculated with S. sclerotiorum.

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

09.10.2025 15:40 ๐Ÿ‘ 32 ๐Ÿ” 23 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2

~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 ๐Ÿ„๐ŸŒฑ!

06.10.2025 15:44 ๐Ÿ‘ 35 ๐Ÿ” 19 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
Table recouverte de cรจpes.

Table recouverte de cรจpes.

Panier rempli d'oronges et de cรจpes

Panier rempli d'oronges et de cรจpes

Panier girolles+ cรจpes

Panier girolles+ cรจpes

Ici, ici c'est la #Corrรจze! ๐ŸŒฐ๐Ÿชด

05.10.2025 13:00 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The kinase CPK5 phosphorylates MICRORCHIDIA1 to promote broad-spectrum disease resistance (Congcong Sun, Yongming Chen, Aifang Ma, Pan Wang, et. al.) doi.org/10.1093/plce... #PlantScience

04.04.2025 18:50 ๐Ÿ‘ 7 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Huge thanks to
@madeleinebaker.bsky.social - @kellerjeanphd.bsky.social - Yves Martinez - @maximebonhomme.bsky.social - @jacquet-chris.bsky.social - @pierremarcdelaux.bsky.social for the incredible collaboration! [9/9]

20.03.2025 11:04 ๐Ÿ‘ 6 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Huge congratulations to you @baptistebio.bsky.social for leading this exciting new preprint! It's been a real pleasure co-supervising your work with @pierremarcdelaux.bsky.social and watching this project grow!Your dedication and curiosity are truly inspiring. Onward to new discoveries! ๐Ÿš€๐ŸŒฟ๐Ÿ€๐Ÿฆ #EVOteam

21.03.2025 16:37 ๐Ÿ‘ 6 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Systematic Discovery and Design of Synthetic Immune Receptors in Plants Plants deploy a diverse array of pattern recognition receptors (PRRs) that perceive microbe-associated molecular patterns (MAMPs) to activate immune responses. Leucine-rich repeat receptor-like kinase...

First post on Bluesky!! โ˜€๏ธ

Very happy to share that my main postdoc work โ€˜Systematic Discovery and Design of Synthetic Immune Receptors in Plantsโ€™ is finally out on Biorxiv!

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

The full story is summarized here:

18.03.2025 01:55 ๐Ÿ‘ 68 ๐Ÿ” 28 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 2

Merci @cnrsbiologie.bsky.social !!

19.02.2025 14:07 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

with a little typo in @chloe-beaulieu.bsky.social name, but that's just to have a fun story to talk about ๐Ÿ˜‰

19.02.2025 09:19 ๐Ÿ‘ 5 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
Du champignon aux plantes, un transfert de gรจne vieux de 500 millions dโ€™annรฉes ร  lโ€™origine de nos รฉcosystรจmes - Universitรฉ Toulouse III - Paul Sabatier devient Universitรฉ de Toulouse

Vous aimez les plantes, mais pas que celles qui font des fleurs ? Vous souhaitez en savoir plus sur leur รฉvolution sur la terre ferme depuis 500 millions d'annรฉes ?

17.02.2025 10:53 ๐Ÿ‘ 8 ๐Ÿ” 4 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
Du champignon aux plantes, un transfert de gรจne vieux de 500 millions dโ€™annรฉes ร  lโ€™origine de nos รฉcosystรจmes - Universitรฉ Toulouse III - Paul Sabatier devient Universitรฉ de Toulouse

Lisez le communiquรฉ de presse de @universitetoulouse.bsky.social , @utoulouse.bsky.social
impliquant mes collรจgues @chloe-beaulieu.bsky.social et @pierremarcdelaux.bsky.social, du laboratoire @lrsv-toulouse.bsky.social , et bien d'autres !
โฌ‡๏ธ

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

17.02.2025 10:54 ๐Ÿ‘ 14 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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This gene family, probably involved in the drought response of M. polymorpha, originates from a horizontal gene transfer from a fungi to the ancestor of land plant, later lost in seed plants. Studying Marchantia therefore enabled us to further understand how plants conquered the land! (14/18)

17.02.2025 10:29 ๐Ÿ‘ 11 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Great work @chloe-beaulieu.bsky.social ! Congrats again to you and @maximebonhomme.bsky.social and to our great chief @pierremarcdelaux.bsky.social for this fantastic project! Happy to be (a little!) part of it!
#EVOteam

17.02.2025 10:38 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

6/6 #EVOteam

Special thank to @maximebonhomme.bsky.social for joining me in that crazy project!

To @chloe-beaulieu.bsky.social for the amazing work she did (She is looking for a postdoc BTW!)

To Cyril Libourel, for helping sooooo much on pretty much everything on that paper!

The End!

17.02.2025 10:18 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Marchantia for the win !

17.02.2025 10:21 ๐Ÿ‘ 4 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

1/6 Super excited to share with you our work on Marchantia intra-specific diversity and pan-genomics, just out @naturegenet.bsky.social

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

Everything on the discoveries in the thread by @chloe-beaulieu.bsky.social

I want to emphasize 5 additional points:

17.02.2025 10:18 ๐Ÿ‘ 74 ๐Ÿ” 49 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 5
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Today @puginiercamille.bsky.social is presenting her fantastic PhD's work, on the amazing evolution and molecular bases of lichenization in chlorophyte algae !
#phylogenomics, #gene_function

Supervised by @kellerjeanphd.bsky.social
@pierremarcdelaux.bsky.social

At @lrsv-toulouse.bsky.social

17.01.2025 14:05 ๐Ÿ‘ 34 ๐Ÿ” 9 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
Page de garde du diaporama passรฉ

Page de garde du diaporama passรฉ

Exemple de diapositive parlant du projet de recherche "Level-up"

Exemple de diapositive parlant du projet de recherche "Level-up"

Merci @cnrs.bsky.social Occitanie pour l'organisation de ces "ร‰chappรฉes inattendues"! Une salle pleine et un public rรฉceptif et curieux. J'ai passรฉ un trรจs bon moment!

17.01.2025 06:32 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0