Juan Alonso-Serra
@jalonsos.bsky.social
📤 1102
📥 841
📝 37
PI • Interested in plant hydraulics and meristems • UPSC, Sweden & University of Helsinki, Finland
pinned post!
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
4 months ago
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Juan Alonso-Serra
Ari Pekka Mähönen
21 days ago
After a long journey, our new paper is out! 🌱 In this study, Tiina and colleagues show that cambium activation in the Arabidopsis root is triggered by the induction of auxin, cytokinin, and TDIF peptide signalling. 🧵1/x
doi.org/10.1093/plce...
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Plant hormone and peptide signaling converge in the genetic network regulating cambium activation in Arabidopsis roots
An intertwined network of cytokinin, auxin and peptide hormone signaling activates secondary growth in the Arabidopsis roots.
https://doi.org/10.1093/plcell/koag059
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Juan Alonso-Serra
Jennifer Lopez Ortiz
24 days ago
During secondary growth, primary protective barriers break, and a new one forms beneath: the phellem. But what triggers phellem to differentiate and become a functional barrier? Our results show it’s mechanical cues from tissue rupture 🌱 Check out our preprint 👇
www.biorxiv.org/content/10.6...
🧵/1
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Tonni Andersen
about 1 month ago
Check out our new preprint by
@octaviarmn.bsky.social
and
@liobarueger.bsky.social
in collaboration with
@meikeburow.bsky.social
- we investigate the spatial effect of glucosinolates on root microbiomes in Arabidopsis and Camelina!
www.biorxiv.org/cgi/content/...
lots of cool stuff!
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https://www.biorxiv.org/cgi/content/short/2026.02.23.707459v1
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José Dinneny
2 months ago
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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Stéphanie Robert
2 months ago
Latest preprint from our group together with
@stephanevrg.bsky.social
@wabniklab.bsky.social
@kleinevehnlab.bsky.social
Our work supports the view that morphogenesis is not driven by growth alone, but by the integration of physical and biological regulation.
www.biorxiv.org/cgi/content/...
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https://www.biorxiv.org/cgi/content/short/2026.01.31.703025v1
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Juan Alonso-Serra
Umeå Plant Science Centre
2 months ago
🧪🌾News - How do trees know when winter has really begun? New research from the Bhalerao group in
@natcomms.nature.com
shows that trees don’t just count cold hours - they also use brief warm spells early in winter. 📸 From left:
@shkpandey.bsky.social
, Bibek Aryal & @sisiphusonbreak.bsky.social
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Juan Alonso-Serra
New Phytologist
2 months ago
✨ Paper spotlight ✨ (🧵 1/7) From growth potential to drought survival: a trait- and time-based framework for plant water economics across vascular species
nph.onlinelibrary.wiley.com/doi/10.1111/...
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Juan Alonso-Serra
Alex Costa
2 months ago
@labcosta.bsky.social
Out now in ScienceAdvances our new work with @AndreaBassi78 MAcro Plant Projection Imaging (MAPPI): An open, scalable platform for whole-plant fluorescence real-time imaging | Science Advances
science.org/doi/10.1126/...
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Umeå Plant Science Centre
3 months ago
🧪🌾 PAPER – How do trees know when winter is really over? Trees don’t just track long-term cold exposure. The Bhalerao group and collaborators show they also count short warm spells when assessing winter progression. Read more in
@natcomms.nature.com
:👇
www.nature.com/articles/s41...
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Variable temperature processing by plasmodesmata regulates robust bud dormancy release - Nature Communications
Tree buds integrate cold and warm cues to control dormancy release. Extended warm periods block plasmodesmata opening by repressing Flowering Locus T and GA pathways in buds. This mechanism ensures ro...
https://www.nature.com/articles/s41467-025-67260-z
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reposted by
Juan Alonso-Serra
New Phytologist
3 months ago
#TansleyInsight
Condense to sense: a new path for plant osmosensing Zhenyu Wang (王振宇), Hongwei Guo (郭红卫)
nph.onlinelibrary.wiley.com/doi/10.1111/...
#plantscience
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Juan Alonso-Serra
Priya Ramakrishna
3 months ago
🌱📢Join us at the 𝐆𝐑𝐒 𝐨𝐧 𝐒𝐚𝐥𝐭 𝐚𝐧𝐝 𝐖𝐚𝐭𝐞𝐫 𝐒𝐭𝐫𝐞𝐬𝐬 𝐢𝐧 𝐏𝐥𝐚𝐧𝐭𝐬, 𝐌𝐚𝐲 23-24, 2026 in 𝐒𝐰𝐢𝐭𝐳𝐞𝐫𝐥𝐚𝐧𝐝! 💡Specially encourage ECRs to apply to present your work! Its a great forum to connect with peers and mentors in the field. 𝐀𝐩𝐩𝐥𝐲👉
www.grc.org/salt-and-wat...
Please repost!
#plantscience
#abioticstress
#ECRs
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Great project and super nice working environment 👇
add a skeleton here at some point
3 months ago
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Juan Alonso-Serra
Rüdiger Simon
3 months ago
paper is out now in Nature Plants, here is a link: Imputation integrates single-cell and spatial gene expression data to resolve transcriptional networks in barley shoot meristem development. Nat. Plants (2026).
doi.org/10.1038/s414...
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Imputation integrates single-cell and spatial gene expression data to resolve transcriptional networks in barley shoot meristem development - Nature Plants
Spatially resolved gene expression during barley development was done by integrating an scRNA-seq dataset from cells with unknown position with spatial transcriptomics. This dataset is publicly availa...
https://doi.org/10.1038/s41477-025-02176-6
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Juan Alonso-Serra
Christine Faulkner
3 months ago
We're looking for a postdoc to join us in trying to map the routes by which different signals travel through plants and identify what information they carry. Link👇or get in touch!
@johninnescentre.bsky.social
#PlantSciJobs
www.jic.ac.uk/vacancies/po...
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Postdoctoral Researcher (Faulkner Group) | John Innes Centre
An exciting opportunity has arisen for a Postdoctoral Researcher to join the Faulkner Group at the John Innes Centre, working on cutting-edge science in the field of Cell & Developmental Biology.
https://www.jic.ac.uk/vacancies/postdoctoral-researcher-faulkner-group-6/
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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
4 months ago
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reposted by
Juan Alonso-Serra
Weibing Yang
4 months ago
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/...
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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...
https://www.science.org/doi/10.1126/science.ady4102
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Juan Alonso-Serra
Danve Castroverde
4 months ago
Cell wall patterning regulates plant stem cell dynamics
www.science.org/doi/10.1126/...
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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...
https://www.science.org/doi/10.1126/science.ady4102
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Juan Alonso-Serra
Charles Melnyk
4 months ago
“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...
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Juan Alonso-Serra
Laura Ragni
5 months ago
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
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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...
https://www.pnas.org/doi/10.1073/pnas.2510538122
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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/...
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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...
https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.70713
5 months ago
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Juan Alonso-Serra
Ari Pekka Mähönen
5 months ago
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/...
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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...
https://www.pnas.org/doi/10.1073/pnas.2511087122
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Juan Alonso-Serra
Noel Blanco-Touriñán
5 months ago
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...
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Juan Alonso-Serra
Liz Haswell
5 months ago
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!
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Mechanosensitive ion channel MSL8 is required for oscillatory growth and cell wall dynamics in Arabidopsis pollen tubes
https://link.springer.com/epdf/10.1007/s00497-025-00530-4?sharing_token=4iQNnq5XpCPlweQEYTgY1Pe4RwlQNchNByi7wbcMAY5h9bYProgfYpS0KjH65Jl98rdqBjEh5ZS495f43CdZ52MiAgWwng1gSbFOyrJtpKyuKALN1Odwu2l0Vf7XvSZU72wMA1WyyG1z80kKXy8vxYGpgW3LF4i_g0aoNpckoFA%3D
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Juan Alonso-Serra
Ari Pekka Mähönen
5 months ago
Final, edited version of the paper now available
www.sciencedirect.com/science/arti...
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Really nice work with an adaptive twist on SAM hydraulics. Congrats to
@weibingyang.bsky.social
and all involved 🌱🌊
#plantscience
www.cell.com/developmenta...
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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...
https://www.cell.com/developmental-cell/fulltext/S1534-5807(25)00567-2
6 months ago
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reposted by
Juan Alonso-Serra
Cambridge Morphogenesis Seminar Series
6 months ago
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!
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Juan Alonso-Serra
Sara Wickstrom
6 months ago
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 🧵 👇
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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.
https://www.nature.com/articles/s41556-025-01767-x
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Daan Weits
7 months ago
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...
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Juan Alonso-Serra
Cristina Ferrándiz
7 months ago
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
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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...
https://www.cell.com/current-biology/fulltext/S0960-9822%2825%2901002-4
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Juan Alonso-Serra
Marie-Cécile Caillaud
7 months ago
🌱✂️ 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...
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https://www.biorxiv.org/content/10.1101/2025.08.18.670899v1.full.pdf
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Juan Alonso-Serra
Camila Goldy🌱🔬🧉
7 months ago
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 🌱🔬
add a skeleton here at some point
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Juan Alonso-Serra
Maizel lab
8 months ago
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...
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Juan Alonso-Serra
Arif Ashraf
8 months ago
🍀🔬 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.
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Really cool study on a fundamental aspect of plant cell mechanics-hydraulics. Congrats to all involved 🌱
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8 months ago
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Super nice work on how tissue water status can influence cell fate decisions. Congrats to all involved!
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9 months ago
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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!
add a skeleton here at some point
9 months ago
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Juan Alonso-Serra
Vinay Shukla
9 months ago
An ABA–ROP toggle switch orchestrates xylem differentiation and cell wall patterning
www.pnas.org/doi/10.1073/...
#plantscience
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Thank you very much for this fantastic opportunity and for the great meeting. Looking forward to the next one!
add a skeleton here at some point
10 months ago
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Juan Alonso-Serra
Bert De Rybel
10 months ago
Warming up to
#ICAR2025
🌱with two days of cool vascular science at our Vascular Development satellite meeting at
@psb-vib.bsky.social
.
4
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Juan Alonso-Serra
bioRxiv Plant Bio
11 months ago
The Cell Wall Controls Stem Cell Fate in the Arabidopsis Shoot Apical Meristem
https://www.biorxiv.org/content/10.1101/2025.05.19.654883v1
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Juan Alonso-Serra
Marie-Cécile Caillaud
11 months ago
🚨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...
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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…
https://www.sciencedirect.com/science/article/pii/S096098222500510X?dgcid=author
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Juan Alonso-Serra
Thomas Greb
11 months ago
Our study on the effect of strigolactone signaling on vessel formation and water usage is now peer reviewed:
www.nature.com/articles/s41...
Great achievement of Jiao Zhao, Dongbo Shi, Kiara Kaeufer, and everybody involved!
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Strigolactones optimise plant water usage by modulating vessel formation - Nature Communications
Vessel elements arise from cambium stem cells and support plant growth by supplying water and nutrients. This study reveals that strigolactone signalling inhibits vessel formation in response to droug...
https://www.nature.com/articles/s41467-025-59072-y
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Juan Alonso-Serra
Vinay Shukla
12 months ago
An Arabidopsis single-nucleus atlas decodes leaf senescence and nutrient allocation
www.cell.com/cell/fulltex...
#plantscience
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Juan Alonso-Serra
Lothar Kalmbach
12 months ago
🌱 🔬 🚨 There is a 2-year postdoc position available in my group in Neuchâtel 🚨 Please share! Details here:
www.unine.ch/biologie/wp-...
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https://www.unine.ch/biologie/wp-content/uploads/sites/40/PostDoc-position_Kalmbach2025.pdf
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Juan Alonso-Serra
Sainsbury Laboratory Cambridge University (SLCU)
12 months ago
Join us in Cambridge this September for the 9th annual Plant
#ComputationalBiology
Workshop. Seminars and discussions will focus on 5 key themes: 1.
#Mechanics
2. Pattern processes 3.
#AI
4. Computer graphics 5. Concepts 🧳3 travel grants available REGISTER TODAY
www.slcu.cam.ac.uk/computationa...
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Juan Alonso-Serra
Center of Excellence in Tree Biology
12 months ago
Today we gather to honor the memory of Professor Jaakko Kangasjärvi. An inspiring leader, mentor, and driving force in our Center of Excellence in Tree Biology. His visionary work shaped our research and our community. We carry his legacy forward, with gratitude and admiration.
#plantbiology
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Juan Alonso-Serra
Plant Physiology
12 months ago
Water immunity overrides stomatal immunity in plant resistance to Pseudomonas syringae (Jasmin Kemppinen, Maximillian Pollmeier, Sanna Ehonen, Mikael Brosché, Maija Sierla)
doi.org/10.1093/plph...
#PlantScience
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https://doi.org/10.1093/plphys/kiaf127
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reposted by
Juan Alonso-Serra
Margot Smit
about 1 year ago
Our lab's first review article written with
@yadhusankar.bsky.social
and
@vijayalakshmi.bsky.social
is out now in The Plant Journal! 🎉🌱 We discuss temporal regulation of (plant) development. When and how do plants control organ and cell identity progression?
onlinelibrary.wiley.com/doi/10.1111/...
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A space for time. Exploring temporal regulation of plant development across spatial scales
Developmental timing in plants is tightly regulated at the whole-organism scale, from germination to flowering. Less is known about when and how local transitions are temporally regulated. Not every ...
https://onlinelibrary.wiley.com/doi/10.1111/tpj.70130
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Juan Alonso-Serra
IRBV
about 1 year ago
🧪 New Paper Alert New publication in
@natureplants.bsky.social
by
@routierlab.bsky.social
and
@kierzkowskilab.bsky.social
on how mechanical interaction between tissue layers shapes organ development in plants. 🌱 Learn more 👉
rdcu.be/efad3
@fasudem.bsky.social
@umontreal.ca
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Mechanical interactions between tissue layers underlie plant morphogenesis
Nature Plants - Anthers, the male reproductive organs in plants, are a model to explore the establishment of complex three-dimensional shapes. Live imaging, genetics and modelling reveal an active...
https://rdcu.be/efad3
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Juan Alonso-Serra
Ari Pekka Mähönen
about 1 year ago
It's out! Detailed transcriptome atlas of mature Arabidopsis root undergoing secondary growth. Fantastic work by Munan Lyu and Hiroyuki Iida + other lab members, wonderful collab with
@bertderybel.bsky.social
lab on the scRNAseq analysis.
@treebiocoe.bsky.social
1/x
www.nature.com/articles/s41...
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The dynamic and diverse nature of parenchyma cells in the Arabidopsis root during secondary growth - Nature Plants
A combination of lineage tracing and single-cell RNA sequencing reveals how xylem and phloem parenchyma cells in the secondary tissue of Arabidopsis root mature gradually. Upon root barrier injury, th...
https://www.nature.com/articles/s41477-025-01938-6
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