Sjon Hartman

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...

Protein cofactors diversify PRC2 architecture and function https://www.biorxiv.org/content/10.64898/2026.10.24.761575v1

💡We’re recruiting two junior postdoctoral researchers to join our growing interdisciplinary and international team working on climate resilience and sustainable crop protection! Please apply here: www.kuleuven.be/personeel/jo...

Want to know more? Stay tuned or check out some of our recent work and reviews on the topic 🌱🌊 #plantscience doi.org/10.1093/jxb/...

Can plants remember past flooding events? @advaitagashe.bsky.social (from @hartman-plantlab.com) studies the role of ethylene in conferring somatic memory of flooding in Arabidopsis, and potential application for synthetic engineering of plant memory for stress resilience. 📆Oct 23 #PlantScience

"Periderm is a magical barrier" @hengqi.bsky.social (from @lauraragni.bsky.social lab) represented the DOMPS community at the Developmental & Stem Cell Biology Seminar, talking about how cytokinin signaling shapes the development of the protective barrier periderm in Arabidopsis roots. #PlantSci

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

Online now! Rethinking evidence for epigenetic inheritance in human research http://dlvr.it/TW1Qc5 @lohammer.bsky.social & colleagues @cp-trendsgenetics.bsky.social #ASHG26

And now the second preprint of the lab! doi.org/10.64898/202... HY5 shoot-root movement is real and it is necessary and sufficient for the root developmental response to neighbour shading. This is a story in collaboration with the lab of @ronaldpierik.bsky.social + @kyravandervelde.bsky.social

Genetic code expansion enables plant-directed control of bacterial activity - @kunjapur.bsky.social @jennbrophy.bsky.social www.nature.com/articles/s41...

This work led by @jennbrophy.bsky.social and her lead student Vivian in collaboration with my lab & lead student Michaela published online this morning at Nature Biotechnology www.nature.com/articles/s41... Helps limit engr'd microbial functions to target plants Exciting science & amazing collab

New research. Conveniently, Marchantia has relatively few transcription factors. Yet, we need to leverage on that at the family scale to have a more comprehensive picture. In this paper, we focused on ERFs, the second largest TF family. #PlantScience www.biorxiv.org/content/10.6...

Happy to share that our manuscript on virus-induced genome editing in a #ParasiticPlant has been published in Plant, Cell & Environment: doi.org/10.1111/pce.... The method also works well beyond the genes edited in the paper—so, more to come! The plasmids will soon be available from Addgene.

New preprint of our lab doi.org/10.64898/202.... We asked how multiple growth plasticities can co-occur in the same leaf tissue upon light signaling of planting density. @lisaoskam.bsky.social teamed up with @leonardojo.bsky.social for bulk and scRNAseq on dissected leaves.

Wait, wait, what !!!!! Regulation of target gene expression by chromatin-associated protein-coding transcripts in plants 686 protein-coding transcripts that mediate cross-locus chromatin interactions in Arabidopsis www.science.org/doi/10.1126/...

Beautiful spaghetti worm 😎

We continue the session about E3 ligases with @djgibbs.bsky.social who is talking about his recent exciting findings about the interplay of E3 ligase NOT4 and TOR signalling (see also his recent publication on this www.nature.com/articles/s41...) #proteostasis @plantproteostasis.bsky.social

Come visit us at the #Bakteriopolis exhibition (Faculty of Biology, Freiburg), to discover the fascinating world of #Bacteria and, of course, #Archaea! 🦠🔬 @biologyunifreiburg.bsky.social @archaellum.bsky.social @mariejoest.bsky.social @uni-freiburg.de

Bakteriopolis, now in Freiburg. A cool, interactive exhibition about the tiny ones. Mo-Fri 10:00 to 16:00, other times can be arranged.

Tenure track assistant/associate professor positions open in my university. Within life sciences, INCLUDING PLANT SCIENCES. Please RT jobs.helsinki.fi/job/Helsinki...

"It takes TOR to Tango" Today, @scourbier.bsky.social showed how TARGET OF RAPAMYCIN activity is involved in shade mediated hypocotyl elongation. Curious? Check out the pre-print doi.org/10.64898/202... 📆Oct 09 #PlantScience

🌱🦠 Excited to share part of my PhD work @mpipz.bsky.social with @hotvegetables.bsky.social as co-first, in collab with @leibnizipk.bsky.social and @ceplas.bsky.social. We found that Arabidopsis and its microbiota work together to adapt iron acquisition to soil pH. www.cell.com/cell/fulltex... 🧵

Our paper is out! 🤩 HYT1, a new Cys2- substrate of the #Ndegron pathway to add to the list! 🌱 Thanks to @n-end-rules.bsky.social @charlene-kunaka.bsky.social @gunjansharma88.bsky.social , Susana and all the people involved in this work! You can read it on @natcomms.nature.com👇🏼

📄 New protocol chapter! Colyer, Donaldson, Banda, Bennett & Mehra describe five agar-based systems for studying how roots sense patchy water: hydrotropism, xerotropism, xerobranching & hydropatterning. For Arabidopsis & crops 🌱 Check the protocol: doi.org/10.1007/978-...

#PlantSciJobs #PlantSciJob Doctoral Researcher: Root ecology, Ecophysiology, Root exudation 📍@uni-freiburg.de @simonhaber.bsky.social @chriswernerlab.bsky.social Start: 1 January 2027 Deadline: 31 October 2026 www.deutsche-botanische-gesellschaft.de/en/job-openi...

Increase in MYC2 binding sites rather than increase in chromatin accessibility upon JA signaling. #PlantScience From: www.biorxiv.org/content/10.6...

Peter Hegemann and Georg Nagel – awarded the 2026 medicine prize – discovered a remarkable protein, channelrhodopsin, in a single-celled alga. Hegemann wondered how Chlamydomonas, a single-celled alga, is able to swim towards a light source.

We are hiring! Start at a #MaxPlanckInstitute with your own independent Max Planck Research Group. This position is equivalent to a W2 Professorship at a German university, or Associate Professor internationally. 🔗Apply until October 14th! www.mpg.de/career/max-p... #ScienceCareer #MPRG #TenureTrack

Too much water can be a challenge for plants, too! 🌱💧 Our new Spotlight in Molecular Plant explores how COSR channels link hypoosmotic stress to Ca²⁺ signaling. Happy to share this piece with Matteo Grenzi and Yang Zhao! doi.org/10.1016/j.mo...

🎉✨ Großer Erfolg für Freiburg: Die #unifreiburg ist wieder #Exzellenzuniversität. Ab 2027 wird sie im Rahmen der #Exzellenzstrategie von Bund und Ländern institutionell gefördert. #ufrexu26 #wirsindexzellent ➡️ Mehr dazu: ufr.link/wir-sind-exz...

CUT&ID does Genomics+Proteomics in one shot via the fusion protein Lazarus Out @narjournal.bsky.social Unstoppable @annanordin.bsky.social is thinker+executor Get in touch if you wish to try it—plasmid soon @addgene.bsky.social 🙏 @liu.se @scilifelab.se @kawresearch.bsky.social @cancerfonden

Barbaric. Capital punishment has no place in a civilised nation.

Plant Science Research Weekly -- Oxygen: A hidden developmental cue in leaf morphogenesis (Science Advances) (Summary by Priyanka Babuta) buff.ly/Kh7MkHx #PlantaePSRW

🧬 RESEARCH 🧬 Heterogeneity of ethylene receptor paralog interactions extends the ethylene response range, furthering knowledge of the emergent function of genetically redundant paralogs with low degrees of functional redundancy in fitness- Zhao et al. 🔗 doi.org/10.1093/jxb/... #PlantScience 🧪

Happy to be in Bordeaux to start what feels like a 2-week European tour and showcase our work on flooding stress memory in #plantscience and more of our latest results! Looking forward to 3 days of RECROP, and hoping to see results that can promote climate-related stress resilience in plants.

Happy Postdoc Appreciation Week! 🎉 We are celebrating the postdocs who bring new ideas, expertise, and great energy to our DOMPS community! Next to that, let us take this opportunity to introduce our new logo. 💚🧬💙

Transcription factors read a second regulatory code in chromatin https://www.biorxiv.org/content/10.64898/2026.09.23.753737v1

This has originally developed out of a thought along the lines of: "What can you do if you only manage to get weak fluorescence signals?" A short explaining thread 🧵

A TurboID-based proximity labelling method for detecting extracellular protein interactions in plants https://www.biorxiv.org/content/10.64898/2026.09.22.753433v1

🐟 New preprint ! 🐟 For Hippo pathway aficionados. We generated a CRISPR/Cas9 mediated single-copy endogenous Yap1-mGreenLantern fusion protein in medaka to follow Yap1 dynamics in vivo, through embryogenesis and beyond. And it is such a beautiful line ! 🧵

Looking forward to hearing the latest plant #proteostasis research next month in Strasbourg! 🌱 plantscience

Out now in Science: Two papers from our lab reveal VIPR, an RNA-guided DNA-targeting system in bacteriophages, providing clues to the origins of CRISPR www.science.org/doi/10.1126/... www.science.org/doi/10.1126/... Congrats to Peter Yoon, @kenjmloi.bsky.social @terryzzy.bsky.social, T.Docter & team

Very excited to share the new preprint from our lab on transcriptional memory and immune priming! Herculean effort from first authors Linhao and Jenia. Epigenome-engineering experiments provide evidence that H3K4me3 plays a causal role!  doi.org/10.64898/202...

New Correspondence: "CRISPR beyond biology: building a sustainable innovation system" rdcu.be/vPZVgFHi4Jza

Out today in Nature: sex without crossovers. Rhynchospora tenuis makes pollen, fertilises and sets seed, yet 0 crossovers in 10,997 pollen nuclei. Chromosome drive and ~87% seed abortion rebuild the mother's genotype, so the offspring are clones. doi.org/10.1038/s415...

🔬 New collaborative preprint ➡️ A versatile triple fluorescent marker for live imaging of plant cell membranes, nuclei and microtubules” 🌱 Work led by Magalie Uyttewaal & colleagues @ijpb-versaillescly.bsky.social 📄 doi.org/10.64898/202...

Many of you may have heard the terrible news of Dr. Meng Chen's sudden death. I just found this tribute from UC Riverside cnas.ucr.edu/news/2026/09... and a beautiful review article he contributed to @plantphys.bsky.social earlier this year, "25 years of photobodies" doi.org/10.1093/plph... 💔

We introduce a new transducer of oxygen sensing: Cys2-HYT1 @isamanrique.bsky.social @charlene-kunaka.bsky.social Susanna Ubeda Tomas & @gunjansharma88.bsky.social ma88.bsky.social lead work defining HYT1 contribution to root hypoxia tolerance. @natcomms.nature.com www.nature.com/articles/s41...

Hierarchical regulation of oxygen-sensing through coupled transducers in Arabidopsis thaliana www.nature.com/articles/s41... New #plantscience work by @isamanrique.bsky.social @charlene-kunaka.bsky.social @gunjansharma88.bsky.social @n-end-rules.bsky.social