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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 13/09/2026

Plant Acupuncture: a low-cost and open-source device for local mechanical stimulation www.biorxiv.org/content/10.64898/20…

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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 13/09/2026

Live confocal imagining of cellular touch responses upon local quantifiable mechanical stimulation in plant cells www.biorxiv.org/content/10.64898/20…

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Daniel Kierzkowski @kierzkowskilab.bsky.social · 10/09/2026

🌱 Our new paper about growth-derived mechanical conflicts in gynoecium and fruit morphogenesis is now out @currentbiology.bsky.social 🎉Congrats to Binghan Wang and all authors. 📄https://www.cell.com/current-biology/fulltext/S0960-9822(26)01086-9 @irbv.bsky.social @umontreal-en.bsky.social

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Avilash Singh Yadav @morpholosophist.bsky.social · 02/09/2026

Very happy to share that our work "Growth directions and stiffness across cell layers determine whether tissues stay smooth or buckle" is now out @currentbiology.bsky.social www.sciencedirect.com/science/arti... Special thanks to my postdoctoral mentor @roederlab.bsky.social and all the authors!

sciencedirect.com

Growth directions and stiffness across cell layers determine whether tissues stay smooth or buckle

Nature exhibits organs of various shapes and forms, ranging from smooth to undulated morphologies. How cells coordinate their growth to produce smooth…

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Development @dev-journal.bsky.social · 04/09/2026

The role of geometry in morphogenesis Read this Review from our special issue #DevSIextracellular by Ryan Harrison, Olivier Hamant and @timesaunders.bsky.social. journals.biologists.com/dev/article/...

Role of geometry in shaping tissues. Multiple factors, including cell shape (top left), boundary constraints (top right), topological inputs (bottom left) including from different cell alignment defects (±1/2) and biophysical factors (bottom right) impact how the final tissue form emerges (centre). Centre shows images of a 48 h neuruloid (left; magenta, DAPI; green, actin) and a young Arabidopsis flower (right) treated with oryzalin (depolymerised microtubules) thus showing isotropic growth, but no defect in patterning (organs are still initiated in the right position).

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Anja Geitmann @geitmannlab.bsky.social · 19/07/2026

Why do primary plant tissues hold their shape? We are told it's because of turgor pressure—but how does that work mechanically? We investigated how pressurized cylindrical structures support themselves. Read here: doi.org/10.1039/d6sm... Funded by @hfspo.bsky.social www.plantbiomechanics.net

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Thomas Greb @thomasgreb.bsky.social · 20/07/2026

In an heoric endeavor, Xiomin Liu, PhD student in the lab, characterized the dynamics and topology of the cell division machinery during cambium stem cell divisions. Super fruitful collaboration with the group of Sabine Müller (@phragmoplast.bsky.social). doi.org/10.1111/nph....

doi.org

The preprophase band is dispensable for robust cell division orientation in wood‐forming cambium stem cells

Characterization of periclinal and anticlinal cell divisions in dividing cambium stem cells (CSCs). (a) Scheme indicating periclinal and anticlinal cell divisions in CSCs in the Arabidopsis hypocotyl...

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Jan Lohmann @meristemania.bsky.social · 08/07/2026

Interested in how plant stem cells can strive in the harshest environments? Read @thomasgreb.bsky.social and my review of plant stem cell robustness: doi.org/10.1016/j.de...

doi.org

Redirecting

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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 19/06/2026

New insights into cell fates of the Arabidopsis inflorescence meristem @sebamorenor.bsky.social generated the most detailed map to date of this critical stem cell niche, identifying 18 distinct cell type clusters, including precursors to cortex & vascular tissues www.slcu.cam.ac.uk/news/new-ins...

Inflorescence meristem cell identities: (A) Force-directed graph layout of clusters associated with inner cell layers such as early primordia (EP), undifferentiated cells, procambium, xylem parenchyma and cortex. Clusters are represented by different colours. (B) Schematic illustration of selected cell identities in the primary stem and inflorescence meristem. Procambial strands arise in developing primordia and give rise to vascular bundles, which subsequently differentiate into phloem, cambium and xylem within the primary stem. The exact locations of cell identities in the primary stem are schematically represented rather than accurately portrayed. Illustration by first author first author Dr Sebastián Moreno-Ramírez. Source: Fig 6 in Moreno-Ramirez et al Science Advances 2026.

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Arif Ashraf @aribidopsis.bsky.social · 03/06/2026

(1/11) Excited to share the brand-new cell division preprint from the lab! In this manuscript, chemical biology (in a collaboration with @rnett42.bsky.social Ryan’s lab) meets the cell biology (our lab). Harmala alkaloids regulate cell division planes in plants www.biorxiv.org/content/10.6...

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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 27/05/2026

Mechanical forces & cell shape guide how plant stomata form🥬👄 @leoserra.bsky.social & Euan Smithers from @robinsonsci.bsky.social's team uncover how the interplay between cell shape & mechanical stress influences the orientation of stomata doi.org/10.1016/j.ce... www.slcu.cam.ac.uk/news/mechani...

Time-lapse images of adaxial side of PM-YFP cotyledons showing new stomatal divisions occurring between 1 and 2 days after germination (DAG). Newly formed stomata are highlighted in magenta at 2DAG. Imaging by Leo Serra.

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Daniel Kierzkowski @kierzkowskilab.bsky.social · 15/04/2026

Do you want to know how to build an organ from a single cell? Check out our paper about phyllid development in moss by Weney Lin @irbv.bsky.social Colaboration with Yoan Couder @ensdelyon.bsky.social and and Richard Smith @johninnescentre.bsky.social www.science.org/doi/10.1126/...

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Arif Ashraf @aribidopsis.bsky.social · 13/04/2026

🍀🔬📑 Brassinosteroids control cell proliferation in the lateral root cap of the Arabidopsis root @emboreports.org link.springer.com/article/10.1...

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Facundo Romani @fromani.bsky.social · 13/04/2026

The final version of our Marchantia cell cycle paper is now published. A much improved version compared to the preprint. Cyclins, repressors, and more. Thanks to co-authors and reviewers. #PlantScience. academic.oup.com/plcell/advan...

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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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Johanna Krahmer @johannakrahmer.bsky.social · 15/03/2026

Very excited that our review on carbon allocation to axial sink organs is published. Super writing experience and discussions with Anil and @bjazminrh.bsky.social, thank you both for your great work and ideas!

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Daan Weits @daanweits.bsky.social · 10/03/2026

What features are required to shape hypoxic niches enclosing meristems? We @viktoriiavoloboeva.bsky.social in collab @pieterverboven.bsky.social found that a combination of cuticle barrier, densely packed tissue and metabolic activity all uniquely contribute to maintain shoot apical meristem hypoxia

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Hajk-Georg Drost @hajkdrost.bsky.social · 19/02/2026

Does hidden protein biology live in the suboptimal alignment space? When we align two divergent proteins, we usually trust a single optimal alignment. 🧬 But what if the real structural signal lies in the space of near-optimal solutions? With EMERALD-UI you can unfold this perspective.

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Yasin Dagdas @plantophagy.bsky.social · 12/02/2026

Cool story from @meristemania.bsky.social lab on growth-defense tradeoff at the shoot apical meristem www.biorxiv.org/content/10.6...

biorxiv.org

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Weibing Yang @weibingyang.bsky.social · 08/02/2026

Thank you Arif for the highlight!

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José Dinneny @josedinneny.bsky.social · 04/02/2026

Excited to share our latest review on hydrosignaling: moisture-dependent molecular pathways that help plants grow towards water. Insightful review of the literature and discussion of moisture sensing mechanisms by Will Dwyer and @hhtormar.bsky.social. Enjoy! link.springer.com/article/10.1...

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Jill Harrison @jillharrison.bsky.social · 02/02/2026

It was good to catch up on my reading for this dispatch in Current Biology. Sjoerd Woudenberg in the Weijers lab, Wallner et al. In the Dolan lab and Flores Sandoval et al. In the Bowman lab have done a great job! Evolution and development: What makes a merry stem?: www.cell.com/current-biol...

cell.com

Evolution and development: What makes a merry stem?

From tiny mosses to giant redwoods, around 450,000 species of land plants show a huge variety of forms, yet all land plants develop from stem cells in proliferative meristems. What makes a meristem? T...

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Hajk-Georg Drost @hajkdrost.bsky.social · 07/01/2026

🧵 Just out in Cell after more than 10 years in the making! 🎓 www.cell.com/cell/fulltex... Plants and animals evolve radically different body plans. Do they also operate under fundamentally different molecular evolutionary constraints during organ formation? @cellpress.bsky.social

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Maddy Seale @maddyseale.bsky.social · 02/01/2026

At the end of 2024 I did a chronological round up of all the #plantscience in @science.org that year. So how did 2025 pan out? This year, I’m grouping papers thematically instead of chronologically so read on to find out what exciting plant science came out over the last 12 months. (1/22)

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John Innes Centre @johninnescentre.bsky.social · 22/12/2025

Congratulations to researchers from the CAS-JIC-TSL Centre of Excellence for Plant and Microbial Science (CEPAMS) who have revealed a novel mechanism that controls plant stem cell dynamics through precise spatial patterning of cell wall modification.

Left: the shoot apex of an Arabidopsis thaliana plant.
Right: the shoot apical meristem. Actively dividing stem cells are shown in green, and the cell walls are labelled in magenta.

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Thomas Greb @thomasgreb.bsky.social · 21/12/2025

Did you ever wonder how a dividing cambium cell looks like and what determines its striking regular division? Xiomin Liu, PhD student in the lab, found out in a heroic histological approach. Fruitful collaboration with the group of Sabine Müller (@phragmoplast.bsky.social) doi.org/10.64898/202...

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Juan Alonso-Serra @jalonsos.bsky.social · 16/12/2025

I’m very happy to share that next year I’m launching the Meristem Hydraulics Group. We will be at the @umeaplantsciencecentre.se (Sweden) & the University of Helsinki (Finland) @helsinki.fi Here is a brief description of our research interests: www.upsc.se/juan_alonso_... #PlantSciences

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Sandy Hetherington @sandyheth.bsky.social · 15/12/2025

I had a great time writing this dispatch @currentbiology.bsky.social about Jacob Suissa's recent paper on the link between fern phyllotaxis and vascular architecture. "Evo–devo: Ferns flourished due to developmental covariance between leaves and vasculature" authors.elsevier.com/a/1mH793QW8S...

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Weibing Yang @weibingyang.bsky.social · 07/12/2025

Thank you Jose! I have just forwarded the full manuscript to you.

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

Thank you to all authors and collaborators on this project. This work would not have been possible without your hard work, insights, and fantastic teamwork.

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

Finally, five additional PME mRNAs were found to localize in the nucleus, and this bimodal pectin methylesterification is seen across several plant species. We propose that spatiotemporal cell wall patterning regulates stem cell dynamics and shoot meristem development.

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

During cell division, nuclear envelope breakdown (NEBD) releases PME5 mRNA for translation in the cytoplasm, driving active demethylesterification of new cross wall pectins, whereas nuclear sequestration of PME5 mRNA maintains high methylesterification in the surrounding walls.

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

Nuclear sequestration of protein-coding mRNA is unusual. But PME5 is not alone: our prior work also revealed nuclear localization of CDC20 and CCS52B (plant CDH1 ortholog) mRNAs, both encoding key cell cycle regulators (www.sciencedirect.com/science/arti...).

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

During the analysis of pectin modification, we found that mature wall is highly methylesterified while new cross wall is de-esterified. We discover that PME5, which removes the methyl group, is only expressed in dividing cells, and its mRNA is strictly sequestered in the nucleus.

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

Recently we showed that CSLD5 proteins, together with CESAs, rapidly accumulate at the cell division plane, contributing to robust wall synthesis and cell plate formation (www.nature.com/articles/s41...).

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

About a decade ago we began to look at the walls of stem cells by systematically analysing the expression patterns of glycosyltransferase (GTs) genes and polysaccharide composition in the shoot apical meristem (SAM） (www.cell.com/current-biol....

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Weibing Yang @weibingyang.bsky.social · 06/12/2025

Thrilled to have our paper out in @science.org. Cell division guides plant cell wall formation. Does the reverse hold? We show that bimodal pectin methylesterification, via PME5 mRNA nuclear sequestration, influences plant cell division and cell plate orientation. www.science.org/doi/10.1126/...

science.org

Cell wall patterning regulates plant stem cell dynamics

The plant cell wall regulates development through spatiotemporal modulation of its chemical and mechanical properties. Pectin methylesterification is recognized as a rheological switch controlling wal...

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