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Kasper van Gelderen

@kaspervangelderen.bsky.social
1.4K followers 908 following 79 posts

Plant Cell Biologist, Group leader at Centre for Organismal Studies, Heidelberg University www.photobodies.com

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Reposted by Kasper van Gelderen
Ran Blekhman @blekhman.bsky.social · 04/10/2026
My inbox is being flooded with fully AI-generated emails from prospective students. I tried to work out why I can't bring myself to read them, and ended up with some thoughts and advice for writing cold emails in the age of AI. My new post: blekhman.substack.com/p/why-i-am-n...
blekhman.substack.com
Why I am not reading your AI-generated email
I hope this email finds you well-aligned
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Botany One @botany.one · 01/10/2026
Why does a wound feel like winter? 🧵 Cut a leaf and the wound turns cold, and it turns out the plant is reading that chill as an instruction. botany.fyi/winterwound
A thermal image of a leaf. Two cuts on the plant show up as striking cold purple against the warm orange of the leaf.
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John Stott @jpsastro.bsky.social · 24/09/2026
Had a UKRI funded grant proposal rejected at the "AI triage stage". "This AI-based triage was used only to identify approximately 50% of the strongest proposals to take forward to full human review." 🧪 #academicsky
I am writing to let you know that, unfortunately, your application was not successful.

Review process

As part of the initial triage of the 179 proposals submitted to this call, each was assessed using an AI-based review. Every proposal was read independently by several different AI models against the same seven criteria used to shape this call (including cyber security relevance, research quality and novelty, importance of the problem addressed, feasibility of the project plan, likely outputs and impact, value for money, and responsible research practice), with each model asked to give a score and a written justification with supporting quotations from the text. To guard against any one model's idiosyncrasies, we also ran a second, independent process in which different AI models debated the merits and weaknesses of each proposal before reaching a judgement, again against the same criteria. Scores from both processes were combined to produce an overall ranking. 

This AI-based triage was used only to identify approximately 50% of the strongest proposals to take forward to full human review.  Projects selected for funding were drawn from those that progressed to the full human review stage. We recognise that AI-assisted assessment is a new and evolving part of the review process, and we are continuing to evaluate how well it aligns with the judgements of human reviewers on this call. We will soon produce a document detailing our method, so that others can build upon it and improve it.

Feedback on your application

Your application was not selected to progress beyond the AI triage stage.  To provide transparency on the outcome of this assessment, we are sharing below the scores (out of 5) from each of the two AI review processes described above, together with the mean score across the two processes.
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Yasin Dagdas @plantophagy.bsky.social · 25/09/2026
Shame on you @ukri.org !!! This is so disrespectful to all those people that put in months to write these grants.
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Tonni Andersen @tonnigrubeandersen.bsky.social · 22/09/2026
Check out our new preprint: a very cool fluorescence tool developed by @samwalds.bsky.social www.biorxiv.org/content/10.6...
biorxiv.org
Intronised fluorophores improve reporter output and biosensor expression in plants
Genetically encoded biosensors are central to plant cell biology, but low reporter signal can limit their use. Here, we developed modular intronised fluorophores to improve reporter output in transien...
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Yuan He @yuanhejhu.bsky.social · 22/09/2026
A big week for the lab! Two new papers on how cells repair DNA double-strand breaks: one on getting NHEJ started in chromatin, one on processing the ends before ligation. Years of work by a fantastic team.
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Marc Somssich @somssich.bsky.social · 20/03/2026
I really wish more plant scientists, and especially influential big name plant scientists, would publish with eLife. Their new publishing model is a fantastic way forward and to get us out of the #ScientificPublishing mess we have gotten ourselves into and to which we claim we are held hostage.
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COS Heidelberg @cosheidelberg.bsky.social · 14/09/2026
The first preprint of COS junior PI @kaspervangelderen.bsky.social! Always a very special moment in a group's scientific trajectory. Congratulations!
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Gautier Langin @glangin.bsky.social · 11/09/2026
Preprint Alert! 🚨 Have you ever wondered how highly conserved molecular complexes adapted to ever changing cellular environments? Thrilled to show our work on 26S proteasome evolution in the green lineage. 🌱🧬👇 www.biorxiv.org/content/10.6... A thread🧵
biorxiv.org
Gene repertoire expansion and cis-regulatory diversification shaped 26S proteasome evolution within a proteostasis-centered network
The 26S proteasome is essential for proteostasis and constitutes one of the most conserved molecular machineries in eukaryotes. Its homeostasis is maintained by a mechanistically conserved feedback lo...
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Kasper van Gelderen @kaspervangelderen.bsky.social · 13/09/2026
The first preprint of my lab has just come out doi.org/10.64898/202... This paper came out at the same day on the sudden passing of Prof. Meng Chen. Without his work, this paper would not have existed. He was an extremely supportive member of the plant photobiology community..
doi.org
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Yasin Dagdas @plantophagy.bsky.social · 29/07/2026
If I were an Early Career Researcher (#ECR) today, I wouldn’t join a lab that doesn’t #preprint (the PI agreed to keep paying me until my paper is finally published). It now takes ages to get papers through peer review, and without preprints you’re putting your future in someone else’s hands.
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Kasper van Gelderen @kaspervangelderen.bsky.social · 23/07/2026
If you're a nerdy plant scientist like me,.plz read this thread!
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Putri Prasetyaningrum @putriningrum.bsky.social · 23/07/2026
Leaves absorb red and reflect far-red, so a close neighbour enriches the spectrum in far-red. Phytochrome B detects this; the plant elongates. Gibberellin is required. Its three receptors are not interchangeable — only one responds to far-red. A preprint thread: tinyurl.com/y5jyy9zc 🌱
"The Receptor Who Was Not Redundant"
Functional specialization of the gibberellin receptor GIBBERELLIN-INSENSITIVE DWARF 1C in plant neighbour detection
Prasetyaningrum et al, 2026
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Isabel Monte @isabelmonte.bsky.social · 10/07/2026
Thanks to all the speakers and participants in the "Plant Robustness from molecules to ecosystems" session at the #SEB2026 conference! Exciting science and great discussions sponsored by @theplantjournal.bsky.social and our Excellence Cluster @greenrobust.de 🌱 with @kaspervangelderen.bsky.social
Kasper introducing our Excellence Cluster GreenRobust as sponsor of the SEB 2026 session on Plant Robustness from molecules to ecosystems in FlorenceFishbowl discussion on plant robustness including ECRs and invited speakers and moderated by Kasper in the P12 session on Plant Robustness from the SEB 2026 Annual Conference in Florence (Italy)
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GreenRobust @greenrobust.de · 08/07/2026
How plant stem cells are kept robust summarized by GreenRobust PIs Jan Lohmann (@meristemania.bsky.social) and Thomas Greb (@thomasgreb.bsky.social). Enjoy! www.sciencedirect.com/science/arti...
sciencedirect.com
Plant stem cell systems: Robust by design
Plants maintain active stem cell populations throughout their lives, yet these systems are remarkably resilient to genetic, environmental, and mechani…
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Kasper van Gelderen @kaspervangelderen.bsky.social · 09/07/2026
Very happy with our @greenrobust.de @isabelmonte.bsky.social Plant Robustness session at the @sebiology.bsky.social conference. Excellent talks by @hildenelissen.bsky.social, Marcel Quint, @rsasidharan.bsky.social and Amy Austin. Great fishbowl discussion on plant robustness! Thanks PlantJ
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Oliver Bossdorf @bossdorf.bsky.social · 07/07/2026
JOB ALERT! 3-year postdoc position to work on plant robustness in an interdisciplinary project. Great for somebody with experience who can take a central role, coordinate experiments and co-supervise students, and contribute conceptually. @greenrobust.de @unituebingen.bsky.social Please re-post.
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Isabel Monte @isabelmonte.bsky.social · 02/03/2026
Join us at the #SEBconference Florence 2026 to discuss #Plant Robustness! 🌱🔥 @kaspervangelderen.bsky.social and I are organising the P12 session "Plant robustness from molecules to ecosystems" with the support of @greenrobust.de Check the program and submit your abstract by March 6th! 👇
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Sarah Courbier @scourbier.bsky.social · 29/06/2026
I've got something to "TORC" about! 😅 After 4 years building this project at @biologyunifreiburg.bsky.social, I'm so excited to share that my first independent preprint is now online! ✨ I hope you like it: doi.org/10.64898/202... A short thread... 🧵 #PlantSci #PlantScience
doi.org
The TARGET OF RAPAMYCIN (TOR) kinase controls shade-mediated hypocotyl elongation responses in Arabidopsis.
Plants perceive neighboring vegetation through an enrichment of far-red light (shade) in the environment. These changes in light quality trigger molecular and physiological responses aimed at outgrowi...
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Svetlana Dodonova @dodonova-sveta.bsky.social · 19/06/2026
Excited to share our new preprint! 🧬❄️ by brilliant @mdreimann.bsky.social and great collaborators! Using cryo-ET&EM, we reveal archaeal chromatin in a near-native state: variable-beads-on-a-string fibers shaped by growth phase and histone composition #ArchaeaSky www.biorxiv.org/content/10.6...
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Jan Lohmann @meristemania.bsky.social · 18/06/2026
Great day with @sebastiansoyk.bsky.social visiting @cosheidelberg.bsky.social ! From genes to meristems to plant architecture and crop yield. Just amazing what modern genetics can do- even bringing Swiss heirloom tomato varieties back to life.
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Reese Richardson @reeserichardson.bsky.social · 06/06/2026
Thermo Fisher now has a page up in response to our observations. They flatly deny that images were manipulated or fabricated while repeating that images were "optimized for presentation and clarity on the website", no lie, six times. www.thermofisher.com/us/en/home/l...
thermofisher.com
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Nature @nature.com · 29/05/2026
Catalogue entries for more than 100 antibodies sold by the research services and supply company Thermo Fisher Scientific contain images that have apparently been manipulated, according to a pair of science sleuths. go.nature.com/4wX4yej
go.nature.com
Science sleuths uncover more than 100 suspicious images in Thermo Fisher antibody catalogue
Scientists have long worried about the reliability of commercial antibodies, and the latest findings have sparked fresh concerns.
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Sandy Hetherington @sandyheth.bsky.social · 18/05/2026
Super excited to see Atlas of Botany in print!!! A pleasure to work with the wonderful team from DK and the @thebotanics.bsky.social I wrote the Ancient Biomes section covering some of my favourite stories about plant evolution from the last 500 million years! @instmolplantsci.bsky.social
Sandy Hetherington standing in a bookshop holding a book titled atlas of botany with red flowers on the coverOpen book on page "Coal Forest Evolve" - in front of the book are examples of Carboniferous fossils include fern leaves and leafy stems
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Sebastian S. Cocioba @atinygreencell.bsky.social · 29/05/2026
SPLICECRAFT v1.0 IS LIVE!!!!!!!!!!!! Open your terminal and type in "pipx install splicecraft" if you want to try it out, then spam "splicecraft update" often as I push updates frequently. A labor of love for the community I adore. Enjoy! 💚
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Jan Lohmann @meristemania.bsky.social · 25/05/2026
Finally done: check out our new lab website: meristemania.org
meristemania.org
Meristemania · Lohmann Lab
Plant stem cell biology in the shoot apical meristem. Centre for Organismal Studies (COS), Heidelberg University · GreenRobust Cluster of Excellence.
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Sebastian S. Cocioba @atinygreencell.bsky.social · 18/05/2026
Unforgivable things are happening on the other app. Thermo just lost a heap of consumer trust.
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Putri Prasetyaningrum @putriningrum.bsky.social · 16/05/2026
#Caturday Picasso chilling on his watch tower (a.k.a DIY cat stairs)
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Marcel Dickmanns | 🌿❄️🔬 @madic.bsky.social · 14/05/2026
It's out! 🥳 In situ architecture of #plasmodesmata - plant cytoplasmic bridges - by #cryoET. 📝 Paper: www.nature.com/articles/s41... 🧵 Thread: bsky.app/profile/madi... #teamtomo #proteomics #AlphaFold
nature.com
In situ architecture of plasmodesmata in Physcomitrium patens resolved by cryo-electron tomography - Nature Plants
Using cryo-electron tomography, the authors reveal how plasmodesmata (plant cytoplasmic bridges) are gated by cell wall remodelling and how helical protein assemblies scaffold internal membranes, with...
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Yasin Dagdas @plantophagy.bsky.social · 11/05/2026
“In physics, we search for universality,” Jalaal said. “In biology, we embrace non-universality and biodiversity.” www.quantamagazine.org/the-hidden-m...
quantamagazine.org
The Hidden Mathematical Dance Inside Plant Cells | Quanta Magazine
The sunlight-collecting organelles known as chloroplasts solve a packing problem: how to optimize photosynthesis without sustaining damage from dangerously intense rays.
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Anne-Lise Routier-Kierzkowska @routierlab.bsky.social · 06/05/2026
Interested in 3D biological image analysis with #MorphoGraphX? We created a beginner-friendly online workshop with step-by-step YouTube tutorial and accompanying training datasets: zenodo.org/records/1982...
zenodo.org
PCA Imaging Workshop Webinar Series: introduction to 3D image analysis with MorphoGraphX
This webinar is the second in a series organized by the Plant Cell Atlas (PCA). It introduces basic functions in MorphoGraphX, an open-source software platform for 3D image analysis in biological appl...
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Yasin Dagdas @plantophagy.bsky.social · 06/05/2026
Now online at @natplants.nature.com ‼️ Led by Jierui Zhao, a former PhD student @gmivienna.bsky.social & together w/ @moritznowack.bsky.social lab, we uncover how #autophagy shapes salt stress tolerance and lifespan. www.nature.com/articles/s41... www.nature.com/articles/s41... A short 🧵👇
nature.com
Cell-type-specific autophagy in root-hair-forming cells is essential for salt stress tolerance in Arabidopsis thaliana - Nature Plants
This study reveals that enhanced autophagy in root-hair-forming cells helps Arabidopsis store excess sodium, control oxidative stress and tolerate salt stress.
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Sjon Hartman @hartman-plantlab.com · 05/05/2026
So happy and proud to share our lab’s first #plantscience research article, revealing that angiosperms have the capacity to encode memory of flooding stress. A heroic effort by @aidamaric.bsky.social in collaboration with @djgibbs.bsky.social and others. A brief 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
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Şuayb Üstün @suaybuestuen.bsky.social · 30/04/2026
Thrilled to introduce our next act 🎭 in @cp-molcell.bsky.social sciencedirect.com/science/arti... led by @glangin.bsky.social We uncover how proteotoxic stress is integrated across compartments, controlling proteasome activation ⚖️ vs photosynthesis repression 🌱 🧵(1/6) #proteostasis
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Nathan Kalman-Lamb @nkalamb.bsky.social · 29/04/2026
Faculty everywhere should be incredibly concerned that our employers will steal our teaching materials just as Arizona State has. Absolutely shameless.
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Vinay Shukla @vinayshukla.bsky.social · 22/04/2026
Synoxys lab on a roll!! New work: ERFVIIs do double duty: sensing hypoxia and then managing the oxidative burst that hits during reoxygenation. Congratulations to everyone! #plantscience
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Devang Mehta🌱🧬 @mehta-lab.com · 21/04/2026
Someone in the Arabidopsis/clock community seems to deeply dislike my work on research culture. Just want to say: whoever you are, please write & debate me directly instead of cowering behind anonymous grant reviews that threaten my students’ work. (2nd year in a row)
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Danve Castroverde @danvec.bsky.social · 17/04/2026
Identification of a plasma membrane complex that interacts with phyB to regulate ROS production academic.oup.com/plphys/advan...
academic.oup.com
Identification of a plasma membrane complex that interacts with phyB to regulate ROS production
Phytochorme B interacts with a plasma membrane complex containing respiratory burst oxidase homolog D to regulate reactive oxygen species production during
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Juan Carlos De la Concepcion @delaconcepcionjc.bsky.social · 17/04/2026
ERC penalize the applicants to reduce the number of applications while increasing the years post PhD to increase the number of applicants. There is nobody behind the wheel...
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Nidhi Mishra @nidhi-mish.bsky.social · 16/04/2026
A very nice presentation by Freddy Igiebor about his Master's thesis work on "How plants remember darkness through Liquid-Liquid Phase Separation?" at #YRSPP-2026 happening in Edinburgh. @yrspp.bsky.social @ronaldpierik.bsky.social @kaspervangelderen.bsky.social
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Kasper van Gelderen @kaspervangelderen.bsky.social · 13/04/2026
One more day to apply for AGILE msca-agile.eu and LEAP!
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Marc Somssich @somssich.bsky.social · 10/04/2026
We are looking for a Tomato Breeder to join our Team @kwsgroup.bsky.social in Antalya, Türkiye. jobs.kws.com/job/Eski%C5%... Our Vegetable Division is expanding at the moment, and this is a good timepoint to get on board. #PlantScience #PlantSciJobs #PlantScienceJobs #PlantSciJob
jobs.kws.com
Tomato Breeder
Tomato Breeder
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Şuayb Üstün @suaybuestuen.bsky.social · 09/04/2026
Preprint alert 🚨 (1/10) 🧵 𝘈𝘶𝘵𝘰𝘱𝘩𝘢𝘨𝘺 𝘪𝘴 𝘢 𝘱𝘢𝘳𝘢𝘥𝘰𝘹 𝘪𝘯 𝘱𝘭𝘢𝘯𝘵 𝘪𝘮𝘮𝘶𝘯𝘪𝘵𝘺: It can promote resistance, susceptibility, or restrict cell death 🤯 So what is its actual role? We show it acts as a spatial organizer of immunity across cell types 🌱🦠 #proteostasis www.biorxiv.org/content/10.6...
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Yasin Dagdas @plantophagy.bsky.social · 31/03/2026
New #preprint 😍‼️ led by 2 incredible postdocs @ninizhani.bsky.social & Ranj Papareddy: transforming #UFMylation from a local ribosome rescue pathway to systems level regulator of mRNA splicing www.biorxiv.org/content/10.6... A short 🧵
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Danve Castroverde @danvec.bsky.social · 27/03/2026
AUXIN RESPONSE FACTOR thermostability www.nature.com/articles/s41...
nature.com
AUXIN RESPONSE FACTOR thermostability - Nature Communications
Elevated temperature is shown to rapidly increase the abundance and solubility of key auxin regulators, ARF7 and ARF19. Natural variation in this thermoregulated accumulation correlates with plant gro...
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Moi Expósito-Alonso (MOILAB) @mexpositoalonso.bsky.social · 26/03/2026
Our new experimental evolution study across 30+ locations using the plant Arabidopsis thaliana —— we direct "see" adaptation and extinction to different climates at the genetic as it happens! Read it in Science dx.doi.org/10.1126/scie... @ucberkeleyofficial.bsky.social @hhmi-science.bsky.social
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Oliver Bossdorf @bossdorf.bsky.social · 28/03/2026
Finally, big paper #1 from GrENE-net, the unique distributed Arabidopsis evolution experiment! What an achievement, particularly by Moi, Niek and Francois who conceived the project (in Tübingen), and by the incredibly smart Moi Lab data analysis team: Lucas, Tati, Meixi, Xing and Moi!
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German Society for Plant Sciences (DBG) @plantsciencedbg.bsky.social · 27/03/2026
How Thale Cress adapts – or goes extinct. In an unprecedented field experiment plant scientists investigated evolutionary adaptation of Arabidopsis thaliana to a wide range of climates at 30 locations: from the Alps to the Negev Desert was investigated. In @science.org doi.org/10.1126/scie...
doi.org
Rapid adaptation and extinction in synchronized outdoor evolution experiments of Arabidopsis
Climate change forces species to adapt rapidly to avoid extinction. To directly observe rapid adaptation and extinction, we conducted synchronized evolution experiments with Arabidopsis thaliana in 30...
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Karl Schmid @kjschmid.bsky.social · 26/03/2026
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