Yvon Jaillais

🌱 come join our lab 😀
🔬 PhD: small RNAs & plant stress (36 mo)
🧬CDD researcher: plant molecular biology (24 mo)
Apply 👇
PhD: emploi.cnrs.fr/Offres/Docto...
CDD: emploi.cnrs.fr/Offres/CDD/U...

#PlantScience #PhD #ResearchJobs#ERC#CNRS

We have two open Post-Doc positions in my group at the interface with:
1- @ataly.bsky.social for molecular dynamics
2- Bruno Guillotin from protein mobility

Apply by sending CV, two ref letters and a short motivation letter to me : emmanuelle.bayer@u-bordeaux.fr. Deadline 15 sept.

Such a pleasure to meet and discuss with ancient colleagues and friends from RDP- Lyon and IPSIM-Montpellier. Plant membrane meeting June 2025. Thanks for the organization @alexmartiniere.bsky.social🙌🏼

@lbm-bordeaux.bsky.social @rdplab.bsky.social

Beautiful pictures Alex, and super interesting work! congrats

2/ Phosphoinositides (PIPs) are key lipids that define membrane identity. We visualised PI(4,5)P₂ and PI4P biosensors from @yvonjaillais.bsky.social in Nicotiana benthamiana during root colonisation by a mutualist AM fungus - F. mosseae and a pathogen - P. palmivora. www.biorxiv.org/content/10.1...

1/🚨 New preprint alert! Can mutualists and pathogens co-colonise the same living plant cell and what does that do to the plant membranes that surround these microbes?

A big thanks to all the speakers of the session on cell-to-cell communication #ICAR2025👏👏👏
@pdchristine.bsky.social
@pmarhavy.bsky.social
@matiasgleason.bsky.social
@rebeccaburkart.bsky.social
Dimitra Valadourou

🙏Many thanks to my co-chairs
@yvonjaillais.bsky.social
and Isabelle Fobis-Loisy

Conserved mechanical hallmark guides four-way junction avoidance during plant cytokinesis When building an organ, adjacent cells coordinate to form topologically stable junctions by integrating mechanosensitive signaling pathways. Positioni…

🚨Our paper is out!

If you ever wonder how four-way junctions are avoided during plant cell division, some answers here 🧬🍀🔬🧪🤓

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

Plasmodesmata: A new frontier for membrane contact site intercellular communication | Plantae Membrane contact sites (MCSs) serve a critical role in intracellular communication, particularly between organelle membranes, enabling direct molecular transfer. Less clear is the role MCSs play in…

Plant Science Research Weekly -- Plasmodesmata: a new frontier for membrane contact site intercellular communication (Cell) @emmanuellebayer.bsky.social @yvonjaillais.bsky.social (Summary by Stephanie Temnyk) buff.ly/aSoKPZ1

#PlantaePSRW

Postdoctoral Researcher (Faulkner Group) | John Innes Centre An exciting opportunity has arisen for a Postdoctoral Researcher to join the Faulkner Group at the John Innes Centre, working on cutting-edge science in the field of Cell & Developmental Biology.

We're looking for a postdoc to join the lab to work on cell-to-cell communication via the apoplast. Candidate must be brave, as they will have to lead us (me) away from the plasmodesmata-lands we've inhabited for so long!

www.jic.ac.uk/vacancies/po...

🌱 When a root cell undergoes symmetric division, are the daughter cells actually identical? By combining live-cell imaging and scRNAseq we discovered a new cell state with uneven BR activity. Read our full paper in Cell: doi.org/10.1016/j.ce... @nvukas.bsky.social @trevormnolan.bsky.social

Congratulations Jenny, Nemanja and everyone involved!

Thank you Yasin!

Congratulations Yohann and Louise, what a superb study with some pretty amazing microscopy!

ER-to-Golgi trafficking through a dynamic intermediate cis-Golgi tubular network in Arabidopsis - Nature Cell Biology Fougère, Grison et al. show that the ER–Golgi intermediate compartment (ERGIC) in plants is a tubulo-vesicular network marked by MEMBRIN proteins that is largely Golgi-independent. The plant ERGIC mat...

Exited to announce our study on ER-Golgi Intermediate Compartment (ERGIC) in plants!! www.nature.com/articles/s41... Amazing and innovative work from @louisefougere.bsky.social and Magali Grison from @lbm-bordeaux.bsky.social, #SuperResolution, @naturecellbiology.bsky.social

So happy to see this published! @emmanuellebayer.bsky.social and @yvonjaillais.bsky.social labs congratulations👏🌱! Thanks for including us!

Plasmodesmata act as unconventional membrane contact sites regulating intercellular molecular exchange in plants Plant intercellular communication is regulated via tubular ER-PM membrane contact through PI4P and MCTP protein tethers.

Great collaboration with @yvonjaillais.bsky.social 🌱 Plants use membrane contact sites (MCS) for cell-to-cell signaling!
➡️ MCTP tethers & PI4P regulate ER-PM contacts in plasmodesmata, impacting trafficking.
➡️ MCS roles span intra- and intercellular communication.

www.cell.com/cell/abstrac...

Autoactive CNGC15 enhances root endosymbiosis in legume and wheat - Nature Nuclear calcium oscillations initiate plant–arbuscular mycorrhiza and nitrogen-fixing bacteria symbioses for nutrient acquisition, with a newly discovered autoactive CNGC15 mutant enhancing ...

Autoactive CNGC15 enhances root endosymbiosis in legume and wheat

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

Elemental cryo-imaging reveals SOS1-dependent vacuolar sodium accumulation - Nature This study demonstrates that cryo nanoscale secondary ion mass spectrometry (CryoNanoSIMS) enables direct multi-elemental imaging at subcellular resolution of macro- and micronutrients or trace elemen...

Amazing story in @nature.com by @priyaramakrishna.bsky.social @nikogeldner.bsky.social Anders Meibom and others; revealing intracellular Na+ and other elements in roots and ... a new SOS1 location. Moving the field forward!
www.nature.com/articles/s41...

A list with Charlotte Kirchhelle from @rdplab.bsky.social
Congratulations Charlotte

Next speaker for our @iecb.bsky.social Friday seminar (06.12.2024) is @yvonjaillais.bsky.social form @rdplab.bsky.social Lyon. Open to the whole scientific community of Bordeaux! Organised by @habenstein.bsky.social .

We have two invited speakers: Christine Faulkner and Peter Marhavy

We planned some financial support for ECRs selected for a talk based on their abstract, so consider applying!

Registration starts January 1st 2025, but the abstract selection period has just started

With Marie Cecile Caillaud and Isabelle Fobis-Loisy, we are organizing a concurrent session at ICAR next year #ICAR2025 (Gent, Belgium June 16-20 2025).

- How do cells talk to each other? New frontiers in cell-to-cell communication

web.cvent.com/event/448810...

Guidelines for naming and studying plasma membrane domains in plants - Nature Plants This Review aims to define an updated nomenclature for plasma membrane domains in plants. The authors are experts in this field who unite here in an effort to eliminate the ambiguities and confusion t...

This is useful:

"Guidelines for naming and studying plasma membrane domains in plants"

Community review led by @yvonjaillais.bsky.social & Julien Gronnier.

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

Many years after the ridiculous "Lipid Raft Controversy"...

#PlantScience #PMNanodomains #LipidRafts

Very nice work by Liam Elliott et.al. from the Kirchhelle lab on the role of cell edges in the control of plant growth and morphogenesis.

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

#plantscience #plantdevelopment #plantbiology 🌾🧪

There is still some time left to register if you want to follow the Cell Biology of Plants and Beyond symposium online.

It's on Friday and the program is 🔥. Don't miss it!

You just have to register here before Jan 23: sbcf.fr/en/event/the...

Ok, #Plasmodesmata and #PlantScience Fans, if you're too lazy to read the two #preprints from Emmanuelle M. Bayer, @yvonjaillais.bsky.social, et al. in their entireties (see quoted post below), you can now go straight to this #preLights summary by @gwenkirschner.bsky.social:

Thank you, Marc for posting! I am really excited about these findings. Cell-to-cell diffusion via plasmodesmata is not only regulated by callose but also by regulating ER/PM membrane spacing. This is achieved by the concerted action of tethering proteins in the ER and a plasma membrane lipid, PI4P.

Thank you, Marc for posting! I am really excited about these findings. Cell-to-cell diffusion via plasmodesmata is not only regulated by callose but also by regulating ER/PM membrane spacing. This is achieved by the concerted action of tethering proteins in the ER and a plasma membrane lipid, PI4P.

Back-to-back ❗ papers from Emmanuelle M. Bayer, @yvonjaillais.bsky.social, and many others on #Plasmodesmata function.

Formation of plasmodesmata bridges:
bsky.app/profile/soms...

Plasmodesmata as inter-cellular exchange regulators:
bsky.app/profile/soms...

#PlantScience #PlantDevelopment