Amir Porat
@amirporat.bsky.social
📤 231
📥 223
📝 6
Red sea pedestrian. Herchel Smith Postdoctoral Fellow
@slcuplants.bsky.social
🌱
reposted by
Amir Porat
Meroz Lab
4 days ago
Plants are everywhere 🌳 but rarely thought of as computing. New review (preprint 🪩
lnkd.in/d5KwzzPN
): plants sense, compute, and move without a brain - via growth, combining physical computation, embodied intelligence & functional noise. A physics view of decentralized behavior in living matter 🌱
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3
reposted by
Amir Porat
Michael Wrzaczek
12 days ago
Congratulations to Ivan Kulich from IPMB, Biology Centre CAS for his new paper in Science looking at calcium, ROS and root growth @MOLIPEC
www.science.org/doi/10.1126/...
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Science | AAAS
https://www.science.org/doi/10.1126/science.adu8197
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reposted by
Amir Porat
Xavier Trepat
11 days ago
Our latest work on shape-programmable tissues is out in
@science.org
. By positioning topological defects in cellular nematics, we encode frustrated 2D force fields that relax into predictable 3D shapes. Collaboration with Marino Arroyo’s lab, led by
@pauguillamat.bsky.social
at
@ibecbarcelona.eu
.
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reposted by
Amir Porat
Daniel Kierzkowski
13 days ago
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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reposted by
Amir Porat
Mateusz Majda
13 days ago
Happy to see this out! Big congratulations to
@nicolatrozzi.bsky.social
and all involved!
doi.org/10.1038/s443...
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reposted by
Amir Porat
Pierre Haas
24 days ago
Now
#published
@physreve.bsky.social
: "Elasticity and plasticity of epithelial gap closure"
doi.org/10.1103/qtcv-gk3y
#PhD
work of Maryam Setoudeh, a model of cell intercalations during epiboly as elastoplastic deformations of a surface.
@mpipks.bsky.social
@mpi-cbg.de
@csbdresden.bsky.social
add a skeleton here at some point
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7
reposted by
Amir Porat
Meroz Lab
25 days ago
Preprint 🌱 Plants build nonlinear vectorial representations of light patterns! Surprising results: Opposing cues cancel, so plants grow towards a weaker tie-breaker light. Plants respond to sum of transduced signals, not physical sum of light: optical “illusions”! 🪩
tinyurl.com/44f83xh8
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4
reposted by
Amir Porat
Meroz Lab
28 days ago
New preprint 🌱 Segment plants in time-series images using foundation model SAM2 - without training a model 🪩. Magician Alex Abbey! 💡SAP works across species, scales, and even z-stacks. From single cells to whole plants→ quantitative growth & dynamics .
tinyurl.com/3raedtvm
@biosofttau.bsky.social
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reposted by
Amir Porat
Meroz Lab
29 days ago
🌱 “To twine or not to twine?” Preprint 🪩 Plants use inherent circular movements (circumnuations) for active sensing of support mechanical stability (eg whisking 🐭), twining occurs at a torque threshold. Heroic experiments by Amir Ohad, fancy simulations
@amirporat.bsky.social
:
tinyurl.com/2syh4ny3
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8
6
reposted by
Amir Porat
Oliver Jensen
about 1 month ago
Viewing the vertex model through the lens of exterior calculus to investigate monolayer ablation
doi.org/10.1007/s002...
add a skeleton here at some point
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4
2
reposted by
Amir Porat
Michael Raissig
about 1 month ago
Our first study on how the leaf succulent Kalanchoë laxiflora makes stomatal subsidiary cells is finally peer-reviewed & out - and it made the cover! 🌵 🧬 🔬
doi.org/10.1126/scia...
Despite 150 years of evolution, grasses and Crassulacean succulents use the SAME gene to make subsidiary cells! 🤯
add a skeleton here at some point
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reposted by
Amir Porat
Aissam Ikmi
about 1 month ago
Our study on shape diversity in cnidarians is now published. The final version includes extensive new data that substantially extend the original bioRxiv preprint. Congrats to everyone who contributed to this work!
www.cell.com/cell/fulltex...
@embl.org
add a skeleton here at some point
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reposted by
Amir Porat
Laboratory of Plant Morphodynamics
about 2 months ago
ERC-funded PhD position: auxin in plant morphogenesis! Come to our team to study molecular mechanisms downstream of auxin signaling that control morphogenesis in plants!
ueb.cas.cz/en/news/?id=...
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reposted by
Amir Porat
John Sebastian
about 2 months ago
On ’pointless’ optima in Nature! Out now in
@pnas.org
From
#DTU
#DK
Thanks
@villumfonden.bsky.social
🧪 ⚛️
add a skeleton here at some point
0
1
1
reposted by
Amir Porat
Plant Cell Atlas
about 2 months ago
Register now for the second installment of the Plant Cell Atlas Imaging Workshop Series: Introduction to 2D and 3D Segmentation with MorphoGraphX. You can learn more and register here:
plantcellatlas.org/events
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8
5
reposted by
Amir Porat
Soeren Strauss
2 months ago
It's officially out 🥳🥳🥳
doi.org/10.1016/j.cu...
#MorphoGraphX
#MorphoDynamX
#Physcomitrella
#Phyllotaxis
@roederlab.bsky.social
@richardsmithlab.bsky.social
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11
4
reposted by
Amir Porat
Journal of Experimental Botany
2 months ago
📷⚙️ TECHNICAL INNOVATION ⚙️📷 Ohad & Meroz developed a modular camera-based system to measure weak forces generated by freely moving plant organs. It measures the force projected on two axes, is cost-effective, modular & accommodates a wide range of organism scales. 🔗
doi.org/10.1093/jxb/...
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7
3
reposted by
Amir Porat
Marie-Cécile Caillaud
2 months ago
What a treat to see the work from Camila Goldy
@camilagoldy.bsky.social
et al.,
@rdplab.bsky.social
@ensdelyon.bsky.social
now published 🫶
www.science.org/doi/10.1126/...
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The actin cytoskeleton is required to maintain plant cell division orientation against cellular geometry
Actin guides plant cell division, shaping tissues in ways that defy geometric constraints.
https://www.science.org/doi/10.1126/sciadv.aeb8498
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reposted by
Amir Porat
Luis Alonso Baez
2 months ago
Our work now on its final version. We mapped the mechanical properties of roots at tissue and single cell levels using Brillouin microscopy and molecular rotors. Additional mutants and stress measurements from what we previously showed in the preprint are included.
www.science.org/doi/10.1126/...
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The mechanical properties of Arabidopsis thaliana roots adapt dynamically during development and to stress
Brillouin microscopy reveals in vivo dynamics of mechanical properties during plant development and response to stress.
https://www.science.org/doi/10.1126/sciadv.aeb0032
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reposted by
Amir Porat
Sainsbury Laboratory Cambridge University (SLCU)
2 months ago
Registrations now open for
#SLS26
Sainsbury Laboratory Symposium 2026 in Cambridge, UK — Shaping Life: Mechanisms of Morphogenesis! Join us explore how cellular, genetic & mechanical forces sculpt plant form 📅 22–24 Sept 2026 In-person + livestream Limited fee waivers
www.slcu.cam.ac.uk/sls
#plantsi
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reposted by
Amir Porat
Hadrien Oliveri
3 months ago
0️⃣1️⃣1️⃣2️⃣3️⃣5️⃣8️⃣🌺🥬🌱🌀
@alaingoriely.bsky.social
on the Shape of Plants
@greshamcollege.bsky.social
(featuring our work with
@christhorogood.bsky.social
on Nepenthes at the end
www.pnas.org/doi/10.1073/...
)
www.gresham.ac.uk/watch-now/sh...
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The Shape of Plants: Why Plants Love Mathematics and Mathematicians Love Plants
Looking at the plant world, one discovers beautiful and fascinating structures in the shape and arrangement of leaves, stems, and roots. Some are simple and symmetric, other features are arranged in e...
https://www.gresham.ac.uk/watch-now/shape-plants
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reposted by
Amir Porat
Anne-Lise Routier-Kierzkowska
3 months ago
🌱 Recruiting PhD students & postdocs (Fall 2026) at Université de Montréal (Canada)! Projects on plant morphogenesis & biomechanics 💰Possible Funding via Impact+ Canada: • PhD: $40k/yr × 3 • Postdoc: $70k/yr × 2 📩 Contact me before Jan 31 with CV + short note.
#PhD
#Postdoc
#Biophysics
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6
4
reposted by
Amir Porat
Hadrien Oliveri
3 months ago
Job alert🚨I am advertising a 2-year postdoctoral position to work on the mathematics of plant morphogenesis
@mpipz.bsky.social
. Candidates with interests in mathematical modelling, mechanics, or biophysics are strongly encouraged to apply. 🌱Reposts are appreciated!
jobs.mpipz.mpg.de/jobposting/4...
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reposted by
Amir Porat
Zoe Nemec Venza
4 months ago
Ehi, they made one with root tips and even root caps!!!
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Why Are There No Holes Around Trees?
YouTube video by Kurzgesagt – In a Nutshell
https://youtu.be/pHJIhxZEoxg?si=07uCo-Sk8vqVr6m2
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1
1
reposted by
Amir Porat
Daniel Kierzkowski
4 months ago
New paper from our lab
@jxbotany.bsky.social
about auxin and cytokinin interactions during carpel initiation in Arabidopsis Led by
@andreagomezfe.bsky.social
in collaboration with
@defolter-lab.bsky.social
academic.oup.com/jxb/advance-...
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reposted by
Amir Porat
Sainsbury Laboratory Cambridge University (SLCU)
4 months ago
🌱 2x David Sainsbury Career Development Fellowships at
@slcuplants.bsky.social
Launch your first independent research group in quantitative plant development, with generous support & world-class facilities. Deadline extended to 30 Jan 2026
www.cam.ac.uk/jobs/david-s...
#plantscijobs
1/4🧵
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reposted by
Amir Porat
4 months ago
Latest from our lab in 2025. A wonderful collaboration with Sabrina Sabatini's team at Sapienza University of Rome. How mechanical signals contribute to root growth and zonation
@cbgpmadrid.bsky.social
@upm.es
doi.org/10.1126/scia...
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Cell wall–derived mechanical signals control cell growth and division during root development
Mechanical changes in elongating root cells guide division of neighboring cells, shaping root development.
https://doi.org/10.1126/sciadv.aea8647
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reposted by
Amir Porat
Vermot Lab
4 months ago
Check out our latest preprint on the cellular mechanical basis of Voronoi tessellations in epithelia! This biophysics study is inspired by disordered tessellations observed in zebrafish hearts 🤓🐟💙
#SulaimaanLim
#ChiuFanLeeLab
arxiv.org/html/2512.13...
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A left-handed banana! I've been looking for one for years.
4 months ago
1
5
0
reposted by
Amir Porat
Sainsbury Laboratory Cambridge University (SLCU)
5 months ago
🌱 2x David Sainsbury Career Development Fellowships at
@slcuplants.bsky.social
Unique opportunity for early-career researchers to launch their own independent research programme in quantitative plant development, with generous support & world-class facilities.
www.cam.ac.uk/jobs/david-s...
0
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reposted by
Amir Porat
Hadrien Oliveri
5 months ago
Active matter physics studies living beings as open, out of equilibrium, and emergent systems. In this perspective on plant morphogenesis, we show how such features arise from the basic hydromechanics of plant tissue and how to capture them in models. 🌱💧 Preprint 👇
arxiv.org/abs/2512.05554
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19
5
reposted by
Amir Porat
Ricard Alert Zenón
5 months ago
New preprint! Do you like ocean waves? We found similar waves on bacterial colonies! We found that this collective behavior, known as rippling, is nothing but surface waves on an active nematic.
@princeton.edu
@mpipks.bsky.social
@ub.edu
@icreacommunity.bsky.social
www.biorxiv.org/content/10.1...
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reposted by
Amir Porat
Maizel lab
5 months ago
New preprint! SOSEKI polarity proteins are mechanoresponsive integrators linking growth and tissue mechanics during lateral root formation. Their polarity marks growth boundaries and reorganises in response to mechanical alterations —reshaping how we think about axis formation.
tinyurl.com/28p7af2w
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43
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reposted by
Amir Porat
Osvaldo Chara
5 months ago
Thrilled to have contributed to this
@nature.com
study on ethylene and cell wall mechanics in root compaction responses!! — Featuring Jiao Zhang, Lucas Peralta Ogorek,
@borgesaugust.bsky.social
, Bipin Pandey, Staffan Persson, Wanqi Zhang, Malcolm Bennett & more!!
www.nature.com/articles/s41...
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Ethylene modulates cell wall mechanics for root responses to compaction - Nature
Soil compaction traps ethylene around roots, which causes transcriptional upregulation of Auxin Response Factor1, resulting in decreased root cortical cell wall thickness and thereby promoting root ra...
https://www.nature.com/articles/s41586-025-09765-7
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Beautiful!
add a skeleton here at some point
5 months ago
0
2
0
reposted by
Amir Porat
Anne-Lise Routier-Kierzkowska
6 months ago
How fast do plants actually grow? And which growth processes matter most for organ size? We dived into 176 papers, extracted and re-analyzed the data so you don’t have to!
nph.onlinelibrary.wiley.com/doi/10.1111/...
@newphyt.bsky.social
@virajalim.bsky.social
@elvisbranchini.bsky.social
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A multiscale growth atlas of Arabidopsis: linking cell dynamics to organ development
Plant development depends on coordinated growth at cellular and organ scales, yet comparative analyses are hindered by inconsistent reporting of growth across studies. We conducted a meta-analysis o.....
https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.70576
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33
15
reposted by
Amir Porat
New Phytologist
6 months ago
A multiscale growth atlas of Arabidopsis: linking cell dynamics to organ development Alimchandani et al.
@virajalim.bsky.social
@elvisbranchini.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
0
13
9
reposted by
Amir Porat
Meroz Lab
6 months ago
New paper!💡 Amir Ohad developed this nifty setup to measure weak forces generated by freely moving plants, based on the deflection of a pendulum (straw from the cafeteria 😎), which does not require any tethering of the plant:
academic.oup.com/jxb/advance-...
Plant-obstacle interactions here we come!
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13
6
reposted by
Amir Porat
epithelial mechanics fan club
over 1 year ago
Boutillon, A., Banavar, S. P., & Campàs, O. (2024). Conserved physical mechanisms of cell and tissue elongation. Development (Cambridge, England), 151(10), dev202687.
#EpithelialMechanicsReview
https://doi.org/10.1242/dev.202687
0
29
6
reposted by
Amir Porat
bioRxiv Plant Bio
6 months ago
Tissue-wide cues are sensed at the cellular level to coordinate microtubule orientations in plants
https://www.biorxiv.org/content/10.1101/2025.10.18.683221v1
0
8
2
reposted by
Amir Porat
Oliver Jensen
7 months ago
Harmonic fields and the mechanical response of a cellular monolayer to ablation
arxiv.org/abs/2510.05193
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12
4
reposted by
Amir Porat
Jessica C. Huss
7 months ago
One day in the lab, we accidentally discovered that the spines of a cactus 🌵 straighten when exposed to fog. I was intrigued and so were my collaborators. How does this work and what can be gained from it? Here are some of the answers in our new preprint:
doi.org/10.1101/2025...
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reposted by
Amir Porat
Sainsbury Laboratory Cambridge University (SLCU)
7 months ago
🌿💻 Plant Models and Morphology 💻🌿 The 9th International Plant Computational Biology Workshop
@slcuplants.bsky.social
brought together mathematicians, computer scientists, physicists and biologists exploring plant development through models and simulations. Huge thanks to organisers and speakers!👏
1
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4
reposted by
Amir Porat
Gabriella Mosca
8 months ago
The BM^2 Lab is hiring a Ph.D. student to work on a variety of problems connected to modeling of morphogenesis in plants (i.e. ovule curvature formation, fixed handedness establishment in certain plant organs and its link to cell wall mechanics). Please share!
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reposted by
Amir Porat
Botanical Society of America
about 1 year ago
The self-replicating cellular organization of shoot apical
#meristems
New
#AJB
research by Étienne Couturier,
@paulallanos.bsky.social
, Antoine Lizée, Sébastien Besson & Jacques Dumais
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
#botany
#plantscience
#bryophytes
#lycophytes
#ferns
1
14
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reposted by
Amir Porat
Journal of Experimental Botany
8 months ago
🔎 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
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New preprint! "Understanding Shape and Residual Stress Dynamics in Rod-Like Plant Organs" 🌱 with
@merozlab.bsky.social
and
@routierlab.bsky.social
👉
doi.org/10.1101/2025...
add a skeleton here at some point
8 months ago
1
14
6
reposted by
Amir Porat
Zoe Nemec Venza
8 months ago
Here it is! Epidermal cells in the root can figure out if they are covered by the root cap or not using mechanical signals! Thanks to
@ckirchhelle.bsky.social
,
@moritznowack.bsky.social
,
@nathan-german.bsky.social
Annamaria Kiss and all the others!
add a skeleton here at some point
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