Juan Alonso-Serra

“The ZAT14 family promotes cell death and regulates expansins to affect xylem formation and salt tolerance in Arabidopsis”. Now out in @theplantcell.bsky.social led by Ming Feng and colleagues. A 🌱 thread 👇 1/x
academic.oup.com/plcell/advan...

An AINTEGUMENTA phosphoswitch controls bilateral stem cell activity during secondary growth | PNAS Plant stem cells have the remarkable ability to give rise to distinct tissues and organs throughout development. Two concentric cylinders of active...

It’s finally out! 🎉
Work led by former PhD student @wei-xiao-botany.bsky.social , in collaboration with @bayerlab.bsky.social and @bertderybel.bsky.social
AINTEGUMENTA phospho-switch regulates bilateral stem cell activity during secondary growth.

🔗 www.pnas.org/doi/10.1073/...

#PlantSciences

On growth and flow: hydraulic aspects of aboveground meristems Water is essential for plant growth under both normal and stress conditions. Aboveground, two key meristems control plant development: the shoot apical meristem and the vascular cambium. Here, stem c...

Very excited to share my first solo Tansley Insight. An integrated view on the hydraulics of aboveground plant meristems, and the framework of my future work as part of this community #PlantScience

@newphyt.bsky.social

nph.onlinelibrary.wiley.com/doi/10.1111/...

Auxin transport positions stem cells in the vascular cambium during normal development and regeneration | PNAS The vascular cambium contains bifacial stem cells producing secondary phloem in one and secondary xylem to the opposite direction. In Arabidopsis r...

By combining molecular genetics with cell-ablation experiments, we found that vascular cambium stem cells and xylem-identity cells form an interchangeable unit, a stem cell niche. Meticulous work by @xixizhang9001.bsky.social, Ondrej Smetana, Jing Zhang & Xiaoyu Wang 1/x www.pnas.org/doi/10.1073/...

Our latest review, co-authored with @agustilab.bsky.social (@ibmcp.bsky.social), “Environmental regulation of plant vascular networks,” is now published in @cp-trendsplantsci.bsky.social! Read it here: www.sciencedirect.com/science/arti...

Congrats to both! Added to my reading list 🌱

We previously proposed that MS ion channels in pollen grains serve as a “osmotic safety valves”, releasing ions to reduce turgor--but it looks like anion efflux through MSL8 regulates cell wall composition and growth dynamics! #PlantScience 🧪
Kudos to Josh Coomey for wrapping this up on his own!

Final, edited version of the paper now available
www.sciencedirect.com/science/arti...

Congrats to Xin et al for the super thorough work 💪🌱

Epidermal hydrodynamics controls water homeostasis of shoot meristems for plant adaptation to terrestrial environments Zhu et al. uncover an evolutionarily conserved water transport pathway in the epidermis of plant shoot meristems that maintains water homeostasis and regulates stem cell activity. This epidermal hydro...

Really nice work with an adaptive twist on SAM hydraulics. Congrats to @weibingyang.bsky.social and all involved 🌱🌊
#plantscience

www.cell.com/developmenta...

The Cambridge Morphogenesis Seminar Series is back this Michaelmas Term 2025!
Join us for an exciting lineup of talks exploring the many facets of tissue morphogenesis. Check out the flyer for the full list of speakers!

Seeing the invisible: Tools to teach and study plant transcriptional responses Reporter gene-expressing plants show promoter activity, the stability of transgene expression, and are suitable tools to teach students about plant biotech

Here’s some nice work from our colleagues in Helsinki academic.oup.com/plphys/artic...

Mechano-osmotic signals control chromatin state and fate transitions in pluripotent stem cells - Nature Cell Biology McCreery, Stubb et al. show that mechano-osmotic changes in the nucleus induce general transcriptional repression and prime chromatin for cell fate transitions by relieving repression of specific differentiation genes.

How do #stemcells integrate information to coordinate fate decisions? Delighted to finally see our work showing how growth factors regulate the mechano-osmotic state of the #nucleus and #chromatin to control #pluripotency exit out! www.nature.com/articles/s41... see 🧵 👇

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...

Local regulation of auxin-related pathways in the shoot apical meristem plays a major role during proliferative arrest González-Cuadra et al. show that repression of auxin-related pathways locally in the SAM is key in the control of proliferative arrest. FRUITFULL regulates these pathways to promote meristem arrest. B...

It was already known that auxins (surprise!) had a key role controlling the end of flowering, plant menopause. Now we can tell you how and where they act in the inflorescence meristem to control the process.
@irenegonzlez.bsky.social
www.cell.com/current-biology/fulltext/S0960-9822%2825%2901002-4

Congrats to all! Happy to see the final story together. Looking forward to reading it!

🌱✂️ How do plant cells decide where to divide?

Our work shows that actin can override the geometric rules—guiding cells to divide in alternative orientations.
#PlantScience #CellBiology #Arabidopsis

@camilagoldy.bsky.social @rdplab.bsky.social

www.biorxiv.org/content/10.1...

Take a look at part of my work with @mc-caillaud.bsky.social at @rdplab.bsky.social about the role of actin cytoskeleton to maintain cytokinesis against cellular geometry 🌱🔬

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...

🍀🔬

CSLD5-mediated cell wall remodelling regulates tissue mechanics and shoot meristem growth @natcomms.nature.com

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

Movies: Cell division orientation in wild-type (attached) and csld5 (comment) shoot apical meristem.

Really cool study on a fundamental aspect of plant cell mechanics-hydraulics. Congrats to all involved 🌱

Super nice work on how tissue water status can influence cell fate decisions. Congrats to all involved!

Really amazing and inspiring work. When it comes to sensing changes plants have some truly mind blowing tricks up their sleeves. Congrats to all involved!

An ABA–ROP toggle switch orchestrates xylem differentiation and cell wall patterning
www.pnas.org/doi/10.1073/...
#plantscience

Congrats!!! :)

Thank you very much for this fantastic opportunity and for the great meeting. Looking forward to the next one!

Warming up to #ICAR2025 🌱with two days of cool vascular science at our Vascular Development satellite meeting at @psb-vib.bsky.social.

The Cell Wall Controls Stem Cell Fate in the Arabidopsis Shoot Apical Meristem https://www.biorxiv.org/content/10.1101/2025.05.19.654883v1

Conserved mechanical hallmark guides four-way junction avoidance during plant cytokinesis When building an organ, adjacent cells coordinate to form topologically stable junctions by integrating mechanosensitive signaling pathways. Positioni…

🚨Our paper is out!

If you ever wonder how four-way junctions are avoided during plant cell division, some answers here 🧬🍀🔬🧪🤓

👇
www.sciencedirect.com/science/arti...

Congrats to all for this awesome project and now paper!