Alex Martiniere
@alexmartiniere.bsky.social
📤 100
📥 96
📝 5
Plant cell biologist, PI @ IPSIM, Montpellier France
reposted by
Alex Martiniere
4 days ago
We are pleased to announce that registration and abstract submission for ENPER 2026 are now open! The 25th meeting of the ENPER community will be held in Sofia over three days. Please visit the conference website for more details:
enper2026.bio21.bas.bg
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ENPER 2026 – European Network for Plant Endomembrane Research
European Network for Plant Endomembrane Research
https://enper2026.bio21.bas.bg/
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Alex Martiniere
Emmanuelle Bayer
3 days ago
EMBO-FEBS Lecture Course – Membranes in Organelle Biogenesis 📍 Spetses, Greece | 🗓️ 10–16 May 2026 A week with leading experts on organelle biology, membranes, lipids, and dynamics. ⏰ Deadline: 1 March 2026 🔗 Info:
network.febs.org/videos/membr...
📝 Register:
spetses2026.sites.uu.nl
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Membranes and their lipids and proteins in organelle biogenesis
The Joint FEBS/EMBO Lecture Course 'Membranes and their lipids and proteins in organelle biogenesis' will take place in Spetses Island, Greece, from 10–16 May 2026. Registration is open (deadline 1 Ma...
https://network.febs.org/videos/membranes-and-their-lipids-and-proteins-in-organelle-biogenesis
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Alex Martiniere
José Dinneny
9 days 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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Alex Martiniere
SBCF
10 days ago
finishing with a path to multicellularity via ultrastructure complexity
#cellbiologyofeukaryogenesis
@sbcf.bsky.social
a big thank you to all speakers!
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Alex Martiniere
RDP lab
2 months ago
New publication from RDPlab by Christophe Godin's team ➡️ Multi-physics modeling for ion homeostasis in multi-compartment plant cells using an energy function 📖
journals.plos.org/ploscompbiol...
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Multi-physics modeling for ion homeostasis in multi-compartment plant cells using an energy function
Author summary Osmosis is a physical effect by which water is attracted into compartments with a high concentration of solute. Plant cells exploit osmosis to attract water into their subcellular compa...
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1013474
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Happy to share this preprint, we describe how the membrane could shape the ROS nanoenvironment in plant responses to osmotic signals. Led by
@arthur-poitout.bsky.social
and amazing colleagues
@yvonjaillais.bsky.social
,
@jbfiche.bsky.social
, A Meyer, and J Ugalde.
www.biorxiv.org/content/10.6...
21 days ago
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Alex Martiniere
EMBO
27 days ago
Explore the latest discoveries in #lipid functions, quality control and lipid-protein interactions in the EMBO Workshop "The lipid code to life" in #Dresden, Germany, 7–11 September 2026. Deadline: 15 May 2026
https://meetings.embo.org/event/26-lipid-code
#lipid
#Dresden
#EMBOLipidCode
#EMBOevents
#meeting
🧪
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Alex Martiniere
Yohann Boutté
about 2 months ago
sbcf.fr/newsletter/l...
Really proud to announce that my PhD student Louise fougère received the SBCF 2025 PhD thesis award for our work published in
www.nature.com/articles/s41...
I am so happy for you and very well deserved. Congrats Louise !!
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Alex Martiniere
Nature Methods
2 months ago
Introducing mScarlet3-S2: a highly photostable and bright red fluorescent protein.
www.nature.com/articles/s41...
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Alex Martiniere
The Plant Cell
3 months ago
Phosphorylation and ubiquitination synergistically promote the degradation of OsRbohB to modulate rice immunity (Hui Tao, Ruyi Wang, Feng He, Chongyang Zhang, et al)
doi.org/10.1093/plce...
#PlantScience
@aspbofficial
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Phosphorylation and ubiquitination synergistically promote the degradation of OsRbohB to modulate rice immunity
Rboh has a pivotal role in broad-spectrum resistance, and a hierarchical regulatory mechanism fine-tunes Rboh protein homeostasis and immune responses in p
https://doi.org/10.1093/plcell/koaf276
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Alex Martiniere
New Phytologist
3 months ago
Cracking the code of NPF transporters: function, specificity, and evolution in plants
#TansleyReview
by Laura Morales de Los Ríos et al.
@frannybarbs.bsky.social
@lacombeb.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
#plantscience
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Alex Martiniere
Jenny Russinova
4 months ago
Dear ENPER community, We are pleased to invite you to the next ENPER meeting, which will be held in my country Bulgaria, from 26 to 28 August 2026 in Sofia. Save the Date!🌱🌱🌱
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Alex Martiniere
Yohann Boutté
3 months ago
Excited to share our pre-print on how Sphingolipid-driven interleaflet coupling orchestrates ROP6 recruitment to nanodomains upon auxin. Great job from my PhD student Matheus Montrazi,
@arthur-poitout.bsky.social
,
@alexmartiniere.bsky.social
,
@yvonjaillais.bsky.social
www.biorxiv.org/content/10.1...
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reposted by
Alex Martiniere
Maizel lab
3 months ago
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-...
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reposted by
Alex Martiniere
Hatem Rouached
3 months ago
🚨 New in Developmental Cell @Dev_Cell Our team uncovered how plants sense phosphorus deficiency and delay flowering — a molecular “switch” that links nutrient stress to development. A step toward breeding nutrient-smart crops!
authors.elsevier.com/a/1m2id5Sx5g...
@MSU_PRI @MSUAgBio @MSU_PSM
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Alex Martiniere
Juan Carlos De la Concepcion
3 months ago
Link to the full text here 👇
rdcu.be/eNEgh
add a skeleton here at some point
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reposted by
Alex Martiniere
Institute Jean-Pierre Bourgin for Plant Sciences (IJPB)
4 months ago
#IJPB
takes the floor at the 4th INUPRAG Symposium. 👩🔬C. Bellini 👉 CATS team
bit.ly/4dy5hHO
👨🔬N. Arnaud 👉 FTA team
bit.ly/3JfhiJ9
INUPRAG is a consortium between
@inrae-france.bsky.social
(BAP department)
@umeaplantsciencecentre.se
and
@cragenomica.bsky.social
@ijpb-versaillescly.bsky.social
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Alex Martiniere
Alex Costa
4 months ago
SALICYLIC ACID SENSOR1 reveals the propagation of an SA hormone surge during plant pathogen advance | Science
www.science.org/doi/10.1126/...
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SALICYLIC ACID SENSOR1 reveals the propagation of an SA hormone surge during plant pathogen advance
Salicylic acid (SA) is a key phytohormone that orchestrates immune responses against pathogens, including Pseudomonas syringae bacteria. The timing and extent of SA accumulation are tightly controlled...
https://www.science.org/doi/10.1126/science.adw7650
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reposted by
Alex Martiniere
4 months ago
It is out! A tandem of two papers showing TMK regulation of PIN-dependent auxin transport
www.cell.com/cell/fulltex...
(PIN2, Friml lab) and
www.cell.com/developmenta...
(PIN1, Xu lab)
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ABP1/ABL3-TMK1 cell-surface auxin signaling targets PIN2-mediated auxin fluxes for root gravitropism
In gravistimulated roots, gravity perception in the columella redirects the flow of the plant hormone auxin toward the lower root side, where it inhibits cell elongation for downward root bending. Thi...
https://www.cell.com/cell/fulltext/S0092-8674(25)00981-X
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Alex Martiniere
Emmanuelle Bayer
7 months ago
We have two open Post-Doc positions in my group at the interface with: 1-
@ataly.bsky.social
for molecular dynamics 2- Bruno Guillotin from protein mobility Apply by sending CV, two ref letters and a short motivation letter to me :
[email protected]
. Deadline 15 sept.
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Alex Martiniere
Marc Somssich
5 months ago
This is a fantastic talk by Chris Hawes
@nhm-london.bsky.social
. He speaks about
#PlantMicroscopy
in particular, but also the History of
#Microscopy
.
www.youtube.com/watch?v=eAFZ...
Have a look at this Obituary of Chris, too:
onlinelibrary.wiley.com/doi/10.1111/...
#PlantScience
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'Leaves & Lasers' With Professor Chris Hawes | Nature Live Talk - Natural History Museum
YouTube video by Oxford Brookes Health & Life Sciences
https://www.youtube.com/watch?v=eAFZbIdHZ7c
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reposted by
Alex Martiniere
Luis Alonso Baez
7 months ago
One of the key aspects influencing morphogenesis is mechanics. We mapped the mechanical properties of living roots at the tissue and cellular levels using Brillouin microscopy and molecular rotors.
www.biorxiv.org/content/10.1...
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Alex Martiniere
Nature Plants
6 months ago
New Article: "Plasma membrane CYBDOM proteins catalyse apoplastic AsA regeneration and interact with RbohD to activate autophagy and drought tolerance in plants"
rdcu.be/eBbpf
CYBDOM proteins promote drought tolerance. With Research Briefing:
rdcu.be/eBbpM
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Alex Martiniere
Journal of Cell Biology
6 months ago
Evolutionarily diverse caveolins share a common structural framework built around amphipathic discs, say Bing Han, Sarah Connolly, Melanie Ohi (
@umich.edu
), Anne Kenworthy (University of Virginia) and colleagues:
rupress.org/jcb/article/...
#StructuralBiology
#Membrane
#lipid
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www.biorxiv.org/content/10.1...
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Spatiotemporal Dynamics of Anionic Phospholipids Orchestrate Lateral Root Initiation and Morphogenesis in Arabidopsis thaliana
Lateral root (LR) development in Arabidopsis thaliana requires precise coordination of pericycle founder cell (FC) specification, patterning, and morphogenesis. While auxin signalling is well establis...
https://www.biorxiv.org/content/10.1101/2025.08.08.669267v1
6 months ago
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www.nature.com/articles/s41...
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Single-molecule tweezers decode hidden dimerization patterns of membrane proteins within lipid bilayers - Nature Communications
Membrane protein dimerization is a regulatory mechanism in cell signaling. Here, the authors introduce a single-molecule tweezer platform to resolve transient intermediate states and quantify the kine...
https://www.nature.com/articles/s41467-025-62852-1
6 months ago
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Alex Martiniere
Mukund Thattai
6 months ago
I set out to review the evolution of eukaryotic intracellular traffic, but along the way a new hypothesis came into focus: maybe the earliest membrane carriers were tubules, not coated vesicles! New preprint:
ecoevorxiv.org/repository/v...
Here’s the idea. 🧵
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reposted by
Alex Martiniere
José Dinneny
6 months ago
Very proud to share our latest preprint: postdoc/LRSF fellow Yue Rui studies the mechanisms regulating attachment of the cell wall to the plasma membrane. The Cellulose Synthase Complex and REMORINs determine the extent of attachment and root osmotic stress tolerance.
www.biorxiv.org/content/10.1...
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reposted by
Alex Martiniere
7 months ago
Very excited that our work on directional symplastic transport in differentiated root is now published!A developmental switch controls cell-to-cell transport in roots via pectin-linked plasmodesmata changes: Molecular Plant
www.cell.com/molecular-pl...
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reposted by
Alex Martiniere
7 months ago
Happy to see Kevin Robe’s work on ZIP transporters published. We found evidences that ZIP2 and ZIP8 are involved in Cu and Fe acquisition respectively and confirmed the role of ZIP3 and ZIP5 in Zn acquisition.
journals.plos.org/plosgenetics...
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Super interesting work on hydrotropism and gravitropism
www.pnas.org/doi/10.1073/...
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PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
https://www.pnas.org/doi/10.1073/pnas.2427315122
8 months ago
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Alex Martiniere
Maddy Seale
8 months ago
Out First Release in
@science.org
today, nice work finding that redox regulates multimerisation of Aux/IAA proteins during root xerobranching:
www.science.org/doi/10.1126/...
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Redox-regulated Aux/IAA multimerization modulates auxin responses
Reactive oxygen species function as key signals in plant adaptation to environmental stresses like drought. Roots respond to transient water unavailability by temporarily ceasing branching through the...
https://www.science.org/doi/10.1126/science.adu1470
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reposted by
Alex Martiniere
PM Delaux
9 months ago
Et un peu plus de terrestrialization dans la lettre du
@cnrs.fr
, toujours avec nos deux compères
@chistinesd.bsky.social
et
@huguesrenault.bsky.social
!
lejournal.cnrs.fr/articles/pla...
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Et les plantes colonisèrent la terre ferme…
Il y a un demi-milliard d’années, les plantes, encore aquatiques, partaient à la conquête des continents. Une transition qui a métamorphosé la Terre et son atmosphère, ouvrant la voie aux vertébrés te...
https://lejournal.cnrs.fr/articles/plantes-eau-terre-evolution
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reposted by
Alex Martiniere
Gregor Mendel Institute of Molecular Plant Biology
9 months ago
We are hiring a postdoctoral researcher! Join the Ma Lab in exploring the the intricate interplay between plant development and defense signaling. Link below.
#jobs
#research
#plantbiology
#vienna
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Alex Martiniere
Jian-Pu 韩
9 months ago
Delighted to share one piece of my postdoc work in preprint: Through forward genetic screening for suberin deposition in root endodermis, we identified SUBER GENE 1 (SBG1) by GWAS as a novel regulator for suberization by interacting with Type One Protein Phosphatase.
www.biorxiv.org/content/10.1...
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Alex Martiniere
Journal of Cell Biology
9 months ago
MTMR regulates KRAS function by controlling plasma membrane levels of phospholipids, say Taylor Lange, Kwang-jin Cho
@wrightstateu.bsky.social
and colleagues:
rupress.org/jcb/article/...
#Cancer
#Membrane
#lipid
#CellSignaling
#Biochemistry
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Alex Martiniere
Marie-Cécile Caillaud
9 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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Alex Martiniere
Fabien Miart
9 months ago
🌱 Real-time
#stomata
imaging just got an upgrade! Proud to share our latest progress with
#PHENOM
, now equipped with a custom leaf holder for non-destructive, long-term analysis in natural conditions. 🔬 Works anywhere: field, greenhouse, or growth chamber. Want to know more? 👉
www.miatecs.com
!
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Alex Martiniere
Simon Michaeli
10 months ago
A study led by my good friend from the jolly days at the
@ibmp-cnrs.bsky.social
(now
@psb-vib.bsky.social
, UGent), Marieke Dubois
nph.onlinelibrary.wiley.com/doi/full/10....
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Dual and spatially resolved drought responses in the Arabidopsis leaf mesophyll revealed by single‐cell transcriptomics
Drought stress imposes severe challenges on agriculture by impacting crop performance. Understanding drought responses in plants at a cellular level is a crucial first step toward engineering improve...
https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.20446
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Alex Martiniere
Nature Plants
10 months ago
New Article: "The PP2CH- and PBL27-mediated phosphorylation switch of aluminium ion receptor PSKR1/ALR1 controls plant Al sensing ability"
rdcu.be/ehnQE
PP2C phosphatases & PBL27 kinase modulate ALR1–BAK1 complex formation, controlling plant Al sensing & resistance.
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Alex Martiniere
Rodrigo Reis
10 months ago
Amazing resource for the Arabidopsis and plant community
www.cell.com/cell/fulltex...
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An Arabidopsis single-nucleus atlas decodes leaf senescence and nutrient allocation
A comprehensive single-nucleus transcriptomic atlas of Arabidopsis across multiple tissues enables the quantification of leaf cell aging state at a single-cell level, highlighting the senescence-relat...
https://www.cell.com/cell/fulltext/S0092-8674(25)00297-1?rss=yes
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Alex Martiniere
PM Delaux
10 months ago
Great discussion! Congratulations again to François!
add a skeleton here at some point
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Alex Martiniere
Marie-Cécile Caillaud
10 months ago
😍😍
add a skeleton here at some point
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reposted by
Alex Martiniere
Emmanuelle Bayer
11 months ago
Plasmodesmata: A new frontier for membrane contact site intercellular communication
plantae.org?p=140096
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Plasmodesmata: A new frontier for membrane contact site intercellular communication | Plantae
Membrane contact sites (MCSs) serve a critical role in intracellular communication, particularly between organelle membranes, enabling direct molecular transfer. Less clear is the role MCSs play in…
https://plantae.org/?p=140096
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Alex Martiniere
KleineVehnLab
11 months ago
We are excited to update you on two distinct auxin oscillations (local & systemic), revealing how root architecture adapts to fluctuating conditions!
@cibss.bsky.social
@biologyunifreiburg.bsky.social
@cbgpmadrid.bsky.social
www.biorxiv.org/content/10.1...
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Two distinct oscillatory auxin signals define the plasticity of lateral rooting in Arabidopsis thaliana
The phytohormone auxin defines lateral root pre-branch sites (PBS) in the growing primary root tip. How PBS contribute to the plasticity of the root system architecture remains incompletely understood...
https://www.biorxiv.org/content/10.1101/2024.08.16.608248v2
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Rho of Plant are signalling HUB and GEF behave as signal specific switches. We found that GEF14 specicaly activates ROP6 during osmotic signal. by 2 excellent young researcher L.Gorgues and M.Smokvarska One more great collaboration with
@yvonjaillais.bsky.social
www.embopress.org/doi/full/10....
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GEF14 acts as a specific activator of the plant osmotic signaling pathway by controlling ROP6 nanodomain formation | EMBO reports
imageimageRho Of Plant 6 (ROP6) acts as hub for several independent signaling processes and relies on stimuli-dependent membrane nanodomain formation. This study reveals that the GEF isoform GEF14 is ...
https://www.embopress.org/doi/full/10.1038/s44319-025-00412-w
11 months ago
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Alex Martiniere
Maizel lab
11 months ago
Great theory paper by
@hadrienoliveri.bsky.social
& I. Cheddadi: a Hydromechanical field theory of plant growth treating tissue as a growing poroelastic medium. It's a nice bridge from cell biophysics to tissue-scale growth.
arxiv.org/abs/2409.02775
&
tinyurl.com/22n9ykdo
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Hydromechanical field theory of plant morphogenesis
The growth of plants is a hydromechanical phenomenon in which cells enlarge by absorbing water, while their walls expand and remodel under turgor-induced tension. In multicellular tissues, where cells...
https://arxiv.org/abs/2409.02775
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Alex Martiniere
Jenny Russinova
11 months ago
🌱 When a root cell undergoes symmetric division, are the daughter cells actually identical? By combining live-cell imaging and scRNAseq we discovered a new cell state with uneven BR activity. Read our full paper in Cell:
doi.org/10.1016/j.ce...
@nvukas.bsky.social
@trevormnolan.bsky.social
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Alex Martiniere
Ryo Yokoyama
11 months ago
Genetically encoded biosensors as gateways to retrograde redox signalling in live plants
academic.oup.com/jxb/article-...
@jxbotany.bsky.social
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Genetically encoded biosensors as gateways to retrograde redox signalling in live plants
Abstract. In eukaryotic cells, protein supply to organelles varies depending on the stage of development and, in particular, on the exposure to environment
https://academic.oup.com/jxb/article-abstract/doi/10.1093/jxb/eraf080/8063796
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Alex Martiniere
CNRS
11 months ago
#Communiqué
🗞️ Le CNRS exprime sa solidarité avec les scientifiques exerçant aux États-Unis, où la liberté académique est aujourd'hui mise à l’épreuve. 👉
www.cnrs.fr/fr/presse/le...
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