ckirchhelle.bsky.social
Charlotte Kirchhelle
@ckirchhelle.bsky.social
220 followers 170 following 25 posts
Plant cell/developmental biologist @RDP Lyon, loves cell edges, mechanics, and lateral roots
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ckirchhelle.bsky.social
Charlotte Kirchhelle @ckirchhelle.bsky.social · Aug 27
Thrilled to share our latest work: how plants control growth through activation of a surface-specific growth programme. Thanks @zoenv.bsky.social, @nathan-german.bsky.social and the other coauthors for all the hard work! www.biorxiv.org/content/10.1...
Plant cells at the organ surface use mechanical cues to activate a specific growth control programme
During morphogenesis of multicellular organs, cells acquire distinct identities that meet specific functional requirements. Epidermal identity is widely considered essential for plant morphogenesis du...
www.biorxiv.org
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Reposted by Charlotte Kirchhelle
hueihsuantsai.bsky.social
Merissa Huei-Hsuan Tsai @hueihsuantsai.bsky.social · 5d
Very excited to see our @nikogeldner.bsky.social lab x Feng Zhou lab work featured on the cover of Science!
(1/5) We reveal how root architecture and nutrient leakage shape spatial patterns of microbial colonization, moving beyond traditional models of uniform exudation.
science.org
Science Magazine @science.org · 6d
Using precise spatial and temporal analysis, researchers in Science provide insight into how bacteria around the root interact both with the plant and with each other.

Learn more in this week's issue: https://scim.ag/3WgNajk
A confocal microscopy image shows root-colonizing bacteria clustering around an emerging lateral root, where localized glutamine leakage induces spatially confined reporter activity.
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Reposted by Charlotte Kirchhelle
davidbiermann.bsky.social
David Biermann @davidbiermann.bsky.social · 7d
Very excited to share that our paper "A RALF-brassinosteorid signaling circuit regulates Arabidopsis hypocotyl cell shape" is now published in @currentbiology.bsky.social !

Enjoy reading it!!

www.sciencedirect.com/science/arti...
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Reposted by Charlotte Kirchhelle
biologists.bsky.social
The Company of Biologists @biologists.bsky.social · 8d
We're still accepting submissions for our next special issue: Cell Biology of the Nucleus

Guest edited by Abby Buchwalter and JCS Editor Megan King.

Submission deadline: 3 November

Find out more: journals.biologists.com/jcs/pages/nu...

#CellBiology #Nucelus #Cells #Biology #Academia #Research
Special Issue: Cell Biology of the Nucleus Guest Editor: Abby Buchwalter Deadline 3 November 2025 Journal of Cell Science call for papers
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Reposted by Charlotte Kirchhelle
plantbiomechanics.bsky.social
Plant Biomechanics @plantbiomechanics.bsky.social · 15d
🌿Join us for the Webinar Series 2025 – Road to The 11th International Plant Biomechanics Conference 2026 🌍
📅 Webinar #1: Sept 25, 2025 | [Register: ugm.id/PBMweb1]
📅Webinar #2: Oct 9, 2025 | [Register: ugm.id/PBMweb2]
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Reposted by Charlotte Kirchhelle
zmbp-tuebingen.bsky.social
ZMBP @zmbp-tuebingen.bsky.social · 29d
📢 Job alert! #PlantSciJob
We are opening a Professorship (W1-TT) in Plant Biochemistry at the ZMBP @unituebingen.bsky.social
Apply by October 17th

Please spread the word!

More info 👇
uni-tuebingen.de/fakultaeten/...
Open Professorship (W1-TT) at the ZMBP, University of Tübingen (Germany). Deadline October 17th. More info: https://uni-tuebingen.de/fakultaeten/mathematisch-naturwissenschaftliche-fakultaet/fachbereiche/zentren/zentrum-fuer-molekularbiologie-der-pflanzen/zmbp/job-opportunities/#c12494
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Reposted by Charlotte Kirchhelle
daanweits.bsky.social
Daan Weits @daanweits.bsky.social · 16d
Coming to you live from #ISPLORE2025JP Fresh preprint from my lab showing that leaves progressively oxygenate and how this is important for their morphogenesis.Thanks to our collaborators from @Fra_LicO2si lab. #plantscience
www.biorxiv.org/content/10.1...
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ckirchhelle.bsky.social
Charlotte Kirchhelle @ckirchhelle.bsky.social · 15d
Edges!!
dev-journal.bsky.social
Development @dev-journal.bsky.social · 15d
Mapping the ways Sidekick is localised to cell junctions.
This Research Highlight showcases the work from Dhaval Gandhi, Jessica Treisman and colleagues: journals.biologists.com/dev/article/...
Sdk localization to tAJs does not require the first four Ig domains. (A) Diagram of the Sdk protein showing the six Ig domains (purple), thirteen FNIII domains (yellow), transmembrane (TM) domain (gray) and PDZ-binding domain (PDZ-BD, green). Brackets indicate the extent of the deletion in each CRISPR mutant. (B-E) Midpupal retinas stained for Sdk (B’-E’, red in B-E), Arm (B’’-E’’, blue in B-E) and GFP (green) to mark clones homozygous for sdkΔIg1-4 (B), sdk ΔIg1-6 (C), sdkΔIg5-6 (D) or sdkΔFN (E). Scale bars, 10 µm. (F) Quantification of Sdk levels at tAJs in clones homozygous for each mutant allele, normalized to wild-type regions of the same retinas. Error bars show mean ±s.e.m. ****, p<0.0001; ns, not significant for one-sample t test with 1 (dotted line) as the expected value. n = 10 retinas (sdkΔIg1-4), 8 (sdkΔIg1-6), 9 (sdkΔIg5-6), or 6 (sdkΔFN); each point is the mean of 10-11 junctions in that retina. Removing the first four Ig domains does not alter Sdk localization to tAJs, but deleting the fifth and sixth, all six Ig domains, or the FNIII domains strongly reduces it. Arrows in (C’, D’) indicate examples of tAJs with residual very low levels of SdkΔIg1-6 or SdkΔIg5-6.
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Reposted by Charlotte Kirchhelle
roederlab.bsky.social
Roeder Lab @roederlab.bsky.social · 16d
We have an open Assistant Professor position in Evolutionary Cell and Molecular Biology in the @weillinstitute.bsky.social at Cornell University. academicjobsonline.org/ajo/jobs/30607
Cornell University, Molecular Biology & Genetics
Job #AJO30607, WDR-00055221 Assistant Professor, Molecular Biology & Genetics, Cornell University, Ithaca, New York, US
academicjobsonline.org
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Reposted by Charlotte Kirchhelle
sandyheth.bsky.social
Sandy Hetherington @sandyheth.bsky.social · 17d
Excited to share our recent paper @newphyt.bsky.social where we describe evidence of a Jurassic nurse log from Scotland! Great work led by @anajusagasti.bsky.social Sophie Burne and @jeremywyman.bsky.social @instmolplantsci.bsky.social
🧵 👇 1/6
nph.onlinelibrary.wiley.com/doi/10.1111/...
Decay stages of Jurassic wood debris from Scotland: evidence for the coevolution of fungal rot, arthropods and the nurse log strategy
A key feature of extant conifer forests is the high percentage of seeds that germinate and establish on dead wood; in some forests, this can exceed 90%. This deadwood can act as an ideal nursery for...
nph.onlinelibrary.wiley.com
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Reposted by Charlotte Kirchhelle
kaisakajala.bsky.social
Kaisa Kajala @kaisakajala.bsky.social · 19d
Delighted to present our Tansley Insight on what we know about the potential of different root cortex layers to do develop into different things!

👩‍🔬 @dorotakawa.bsky.social @hannahschneider.bsky.social

📗 @newphyt.bsky.social

nph.onlinelibrary.wiley.com/doi/10.1111/...
Coordination of cortex modifications in time, space, and under stress
In roots, cell-type-specific differentiation enables specialized responses to environmental stress. The cortex, located between the vasculature and epidermis, is a key site for stress-responsive modi....
nph.onlinelibrary.wiley.com
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Reposted by Charlotte Kirchhelle
kleinevehnlab.bsky.social
KleineVehnLab @kleinevehnlab.bsky.social · 18d
Thrilled to share our latest story on the ERAD machinery and how it controls the conditional turnover of PIN-LIKES for acclimative growth

www.science.org/doi/10.1126/...
ERAD machinery controls the conditional turnover of PIN-LIKES in plants
Plant ERAD machinery governs the turnover of auxin transporters involved in developmental and stress responses.
www.science.org
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Reposted by Charlotte Kirchhelle
kierzkowskilab.bsky.social
Kierzkowski Lab @kierzkowskilab.bsky.social · 21d
Join us at the Plant Science Research Institute of the University of Montreal to develop your research group in Plant Molecular Genetics:
www.nature.com/naturecareer...
Assistant Professor in Plant Molecular Genetics - Montréal, Quebec (CA) job with Institut de recherche en biologie végétale (IRBV) | 12844852
A full-time tenure-track assistant professor position at the IRBV, Université de Montréal.
www.nature.com
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Reposted by Charlotte Kirchhelle
natplants.nature.com
Nature Plants @natplants.nature.com · 19d
New OA Article: "Stem cell regulators drive a G1 duration gradient during plant root development" rdcu.be/eHcg2

The G1 phase is very long close to the stem cell niche. This relies on the interplay of PLETHORA with the RETINOBLASTOMA-RELATED pathway.
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Reposted by Charlotte Kirchhelle
nikogeldner.bsky.social
nikogeldner.bsky.social @nikogeldner.bsky.social · 21d
Call for a tenure-track position at our Department of Plant Molecular Biology in Lausanne! We are searching for promising early-career researchers in the broad field of plant-organismal interactions. Deadline: November 30, 2025 - Please re-post!

career5.successfactors.eu/career?caree...
Career Opportunities: DBMV: Tenure Track Assistant Professor towards Associate Professor in the field of Plant-organism (22484)
career5.successfactors.eu
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Reposted by Charlotte Kirchhelle
plantophagy.bsky.social
Yasin Dagdas @plantophagy.bsky.social · 21d
This looks like a great opportunity: #Tenure-track assistant #professor position at University of Lausanne on #MPMI
career5.successfactors.eu/career?caree...
Career Opportunities: DBMV: Tenure Track Assistant Professor towards Associate Professor in the field of Plant-organism (22484)
career5.successfactors.eu
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Reposted by Charlotte Kirchhelle
rdplab.bsky.social
RDP lab @rdplab.bsky.social · 22d
Avec les Visites insolites du @cnrs.fr, plongez dans les coulisses de la recherche !

🔬 Venez visiter noter laboratoire @rdplab.bsky.social

Tentez votre chance au tirage au sort et vivez l’exceptionnel

9/10
visitesinsolites.cnrs.fr/visite/de-ch...

10/10
visitesinsolites.cnrs.fr/visite/de-ch...
De chercheur à "maker" : comment bricoler son propre robot pour mesurer ses plantes ? - Visites insolites du CNRS
Mesurer précisément l’architecture des plantes, c’est crucial pour comprendre les mécanismes génétiques, cellulaires et développementaux qui opèrent lorsqu’un plante...
visitesinsolites.cnrs.fr
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Reposted by Charlotte Kirchhelle
bucklingmt.bsky.social
Shweta Nandakumar @bucklingmt.bsky.social · 24d
Despite their high rigidity, microtubules (MTs) dynamically bend and buckle in cells. MT-self repair is inherent to their metastable nature, but it remains unclear whether just inherent repair mechanisms are sufficient to maintain MT integrity🧵 (1/9)
www.biorxiv.org/content/10.1...
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ckirchhelle.bsky.social
Charlotte Kirchhelle @ckirchhelle.bsky.social · 25d
Always proud of my team but the last month was incredible - poster/presentation prizes for both @zoenv.bsky.social and @nathan-german.bsky.social !! 🥳
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Reposted by Charlotte Kirchhelle
rdplab.bsky.social
RDP lab @rdplab.bsky.social · 25d
🌱 3 plant biology institutes, 2 great days! 🌿

PhDs & postdocs from DBMV @unil.bsky.social, @psb-vib.bsky.social & @rdplab.bsky.social rocked the 2nd Trilateral Plant Bio Symposium in Lausanne!

👏 Big congrats to all ECRs, especially to @nathan-german.bsky.social for winning Best Presentation! 🏆💥
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Reposted by Charlotte Kirchhelle
kaisakajala.bsky.social
Kaisa Kajala @kaisakajala.bsky.social · 26d
Really looking forward to this panel discussion on Tuesday - getting to discuss in depth why it is important to define plant cell types and states!

#PlantScience 🌱
plantcellatlas.bsky.social
Plant Cell Atlas @plantcellatlas.bsky.social · 29d
ONE WEEK AWAY!

The final segment of the Plant Cell Identity Webinar Series, The Open Panel Discussion is Sept. 16, 2025.

To Register: bit.ly/PCAPCI_Webinar
Promotional Image for the Plant Cell Identity Webinar Series.
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Reposted by Charlotte Kirchhelle
thomasp85.com
Thomas Lin Pedersen @thomasp85.com · 27d
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN.

It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.

Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
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Reposted by Charlotte Kirchhelle
plantcellatlas.bsky.social
Plant Cell Atlas @plantcellatlas.bsky.social · 28d
Don't forget to register for this 90-minute workshop on FIJI Basics for Visualizing and Quantifying Plant Images!

This workshop will be held in TWO WEEKS on Wednesday, September 24, 2025 at 7:30am PT/9:30am CT/10:30am ET.

Register Now! bit.ly/45zJE7V
Promotional image for the PCA Imaging Workshop Webinar Series: FIJI Basics for Visualizing and Quantifying Plant Images. The promo has a purple and green plant cell graphic with a black background. It also includes the details for the webinar including the date/time: Wednesday September 24, 2025 9:30am CT/10:30am ET/7:30am PT, the Zoom Link, and the Organizers: Ivan Radin, Kirk Czymmek, and Daniel Kierzkowski.
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Reposted by Charlotte Kirchhelle
geminiteamlab.bsky.social
GeminiTeamLab @geminiteamlab.bsky.social · 29d
📢 A Junior Professorship (W1, tenure track) is open at the Center for Plant Molecular Biology at Uni Tübingen (@zmbp-tuebingen.bsky.social) — to work on plant protein biochemistry (composition, structure, dynamics, or regulation of protein complexes). 🌱 Great opportunity — Apply by Oct 17th!
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Reposted by Charlotte Kirchhelle
moscabiomeclab.bsky.social
Gabriella Mosca @moscabiomeclab.bsky.social · Sep 7
The BM^2 Lab is hiring a Ph.D. student to work on a variety of problems connected to modeling of morphogenesis in plants (i.e. ovule curvature formation, fixed handedness establishment in certain plant organs and its link to cell wall mechanics).

Please share!
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Reposted by Charlotte Kirchhelle
vinayshukla.bsky.social
Vinay Shukla @vinayshukla.bsky.social · Sep 4
Honoured & excited that ‘Breathing Underground’ has been funded by the ERC!
This will let me explore one of the most fundamental questions of plant life: how roots breathe underground? @erc.europa.eu
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