What a glorious day--waking up to see this lovely preprint that does it all--a comprehensive scRNAseq atlas of leaf development, hints at the txn of new cell types, and great hypotheses about how GRNs may differ among related TFs (and in other news, some hope for American Democracy)

Excited to announce our paper is out! Congrats to @pauformosa.bsky.social, @gweissbart.bsky.social, Frances Clark, and Xihang Wang on this fun and beautiful story. We answered a question about the randomness of giant cell spacing that I have had for at least 15 years.

Our work on mapping the dynamics of phospholipids during lateral root formation is now published in @jxbotany.bsky.social We show that PI(4,5)P₂ plays a key role: targeted reduction in pericycle promotes LR development. → academic.oup.com/jxb/advance-...

Timely review by Javi and Noel.

Our lab studies how animals regenerate their body, e.g. how crustaceans regenerate broken legs. One of our aims is to understand if regeneration re-uses the gene networks that built the legs in the first place. Arthur Monternier, an artist in our team, captured the question in this cartoon.

Join us in one of the most supportive and collaborative departments, led by an equally supportive chair!

What are these? You are looking at embryos of a sea squirt. Each of the 'soap bubbles' is a living cell, about a fourtieth of a millimetre in size. The outlines of the cells are visible thanks to fluorescent markers identified by Hitoyoshi Yasuo @hitoyas.bsky.social see doi.org/10.1101/2024... 🧵

The “Art of Longevity” — is it by any chance left-handed DNA?

These are embryos of a jellyfish, made up of cells that are about a fiftieth of a millimetre in size. Their outlines are visible thanks to fluorescent markers identified by Sarah Asaf and @clytia-vlfr.bsky.social see doi.org/10.1101/2024... 🧵

Understanding #microtubule dynamics: The synergy of technology, theory, and experiment. New Perspective from Richard McIntosh @colorado.edu: rupress.org/jcb/article/... #Cytoskeleton #Biophysics #Microtubules

Nice! How do your conclusions regarding paralog expression divergence compare to the ones from the recent Solanum paralog paper? www.nature.com/articles/s41...

Latest from ours: www.cell.com/cell-reports... This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵

Webinar on Quantitative Approaches to Cellular Aspects of Plant Ion Homeostasis on Thursday October 16th: 3-4pm BST www.cambridge.org/core/journal...

It's official! We are moving to Stowers! Very exciting opportunity to expand our studies of insect-plant interactions. We have many opportunities available in biochemistry, development, behavior, genetics, evolution, genomics, AI, and even pest control. Interested in any of these things? Reach out!

How do plants regenerate after wounding? Our new work shows that HSFA1 transcription factors are among the earliest wound-activated regulators of cellular reprogramming in plants!

I really like the series of profiles @newphyt.bsky.social is currently publishing. The new one is on @stanfordstomata.bsky.social: nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience #PlantLuminaries

Humbled to be a part of Indian Science Academies, @ IAScBng, @nasi_academy, and Now @insa_academy Such moments remind me how fortunate I am to work with talented lab members (past and present), collaborators, colleagues and mentors all along. Thank you for this opportunity 🙏

I'm looking forward to chairing this webinar. Congrats to the Dissemination of Arabidopsis Knowledge awardees!

Congrats to the Arabidopsis Lifetime Achievement Awardees!

Development does not happen in isolation! Material properties, geometry, stiffness, fluid flows...can all steer how development unfolds. If you’re exploring these kinds of questions, we’d love to see your work @dev-journal.bsky.social More info below ⬇️

If you are leading a team, you have a responsibility to be a “pragmatic optimist”. Otherwise, you risk being disloyal to the amazing young people you work with. #FridayThoughts

Career Feature @nature.com : ‘Lipstick on a pig’: how to fight back against a peer-review bully. www.nature.com/articles/d41...

Today's the last day to apply for the Plant Cell Assistant Features Editor (AFE) program, usually postdocs or senior PhD students! It's a fantastic opportunity, a great learning experience & a lot of fun too. If you aren't quite ready, in June 2026 Plant Physiology will open its own call for AFEs 👍

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...

I'm making a collage of Arabidopsis habitats for a seminar. If you have photos to share, such as these iconic ones from @mexpositoalonso.bsky.social & @coevolution.bsky.social, please send to [email protected]. Please let me also know how to attribute them. 🙏🙏🙏🙏

🌱 What happens when lateral root primordia (LRPs) fail to emerge? Using our new lineage tracing tool LRTracker, Xin discovered that arrested LRPs don’t just disappear—they gradually switch fate and become part of the cambium, contributing to secondary growth.1/x www.sciencedirect.com/science/arti...

David Baltimore, giant of molecular biology, has died.

Recently, both our team and the Richardson/Estelle/Strader teams showed that ARF transcription factors are actively degraded. In this new preprint, Martijn de Roij explores the requirements and relevance of ARF degradation (1/7)

Cool! news.cornell.edu/stories/2025...

If you’re planting yourself somewhere cozy this weekend, consider picking up When the Earth Was Green. 🌱

😺 to see this one out @jcellsci.bsky.social & have a 🌲 planted for it): journals.biologists.com/jcs/article/... am sure more creative people will make better use of this resource 1/2

🔎 DARWIN REVIEW 🔎 Mody et al. review the study of the cellular basis of plant morphogenesis with 3D digital organs 🔬🌱 🔗 doi.org/10.1093/jxb/... #PlantScience 🧪 @kschneitz.bsky.social

@cp-devcell.bsky.social spotlight on an exciting paper published recently at @cp-cell.bsky.social about a unified cell atlas of vascular plants with an automated cell-type annotation tool: “Decoding plant cell types across species: A blueprint for gene discovery” shorturl.at/wzK5p

Timely review by Peter and colleagues on TDIF-PXY signalling!

Stating the obvious: “Research posts on Bluesky are more original – and get better engagement” www.nature.com/articles/d41...

We learned a lot about plant cell wall mechanics by stretching the Arabidopsis epidermis. Now published in ‪@natcomms.nature.com‬ Fibrous network nature of plant cell walls enables tunable mechanics for development doi.org/10.1038/s414...

Some Impressions of the FASEB Mechanism of Plant Development - 110 attendees, two keynotes, 46 Talks & 83 posters but one passion: understand plant development 🌱🧪🔬🧑‍💻 #PDevSRC

What beauty!

Great opportunity! #PlantScience PLOS Biology hiring full-time Associate Editor. Requires PhD+2 years postdoc experience "Expertise in molecular cell biology is required, preferably in context of plant science" job-boards.eu.greenhouse.io/plos/jobs/46... I know folks who should apply to this!

Love this background on how the work started! Everyone take note: if things don’t work as expected, don’t be disappointed: you might have hit gold!

@currentbiology.bsky.social has always been one of my favorite journals but I think they have now outdone themselves www.cell.com/current-biol.... And picked up by the @nytimes.com as well! www.nytimes.com/2025/08/18/s...

Out after peer review, collaborative study from Nordborg & Weigel labs with help from many others. Not the largest collection of new Arabidopsis thaliana genomes, but we hopefully put forward some good ideas for how to think about pangenomes and their analysis! www.nature.com/articles/s41...

New OA Resource: "A single-cell, spatial transcriptomic atlas of the Arabidopsis life cycle" rdcu.be/eBmkU An extensive single-nucleus and spatial transcriptomic atlas of the Arabidopsis life cycle that represents 10 developmental time points in 6 diverse organs.

New preprint from the lab. We mapped the dynamics of phospholipids during lateral root formation and show that PI(4,5)P₂ plays a key role: targeted reduction in pericycle promotes LR development. www.biorxiv.org/content/10.1...

Our new paper is out in @currentbiology.bsky.social! Using 3D reconstructions and volume measurements in Drosophila wing primordia, we show that growth can be uncoupled from cell proliferation and uncover a new time window for growth arrest. With @leopoldlab.bsky.social www.cell.com/current-biol...

PS: great to see parallels between leaves and wings 🥬🪽😃

1/2 What's best: a field-first or lab-first approach? No easy answers but differences between lab and field should not be seen as failure but motivate further inquiry and allow complementary discovery. Read our thoughts on this here: www.sciencedirect.com/science/arti...

One of my absolute favorite meetings! Attendees--please do ask me about CoB and the journal Development. Our community has strong advocates there.