Alex Martiniere
@alexmartiniere.bsky.social
Plant cell biologist, PI @ IPSIM, Montpellier France
Reposted by Alex Martiniere
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!🌱🌱🌱
October 29, 2025 at 7:06 AM
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!🌱🌱🌱
Reposted by Alex Martiniere
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...
www.biorxiv.org/content/10.1...
November 10, 2025 at 8:58 AM
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...
www.biorxiv.org/content/10.1...
Reposted by Alex Martiniere
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-...
→ academic.oup.com/jxb/advance-...
November 4, 2025 at 9:19 AM
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-...
→ academic.oup.com/jxb/advance-...
Reposted by Alex Martiniere
🚨 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
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
November 4, 2025 at 5:44 PM
🚨 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
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
Reposted by Alex Martiniere
October 31, 2025 at 2:00 PM
Reposted by Alex Martiniere
#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
👩🔬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
October 15, 2025 at 9:04 PM
#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
👩🔬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
Reposted by Alex Martiniere
SALICYLIC ACID SENSOR1 reveals the propagation of an SA hormone surge during plant pathogen advance | Science www.science.org/doi/10.1126/...
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...
www.science.org
October 11, 2025 at 8:59 AM
SALICYLIC ACID SENSOR1 reveals the propagation of an SA hormone surge during plant pathogen advance | Science www.science.org/doi/10.1126/...
Reposted by Alex Martiniere
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)
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...
www.cell.com
October 6, 2025 at 10:41 AM
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)
Reposted by Alex Martiniere
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 : emmanuelle.bayer@u-bordeaux.fr. Deadline 15 sept.
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 : emmanuelle.bayer@u-bordeaux.fr. Deadline 15 sept.
July 28, 2025 at 8:43 AM
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 : emmanuelle.bayer@u-bordeaux.fr. Deadline 15 sept.
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 : emmanuelle.bayer@u-bordeaux.fr. Deadline 15 sept.
Reposted by Alex Martiniere
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
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
'Leaves & Lasers' With Professor Chris Hawes | Nature Live Talk - Natural History Museum
YouTube video by Oxford Brookes Health & Life Sciences
www.youtube.com
September 2, 2025 at 7:20 AM
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
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
Reposted by Alex Martiniere
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...
www.biorxiv.org/content/10.1...
August 1, 2025 at 4:29 PM
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...
www.biorxiv.org/content/10.1...
Reposted by Alex Martiniere
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
CYBDOM proteins promote drought tolerance.
With Research Briefing: rdcu.be/eBbpM
August 18, 2025 at 10:04 AM
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
CYBDOM proteins promote drought tolerance.
With Research Briefing: rdcu.be/eBbpM
Reposted by Alex Martiniere
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
#StructuralBiology #Membrane #lipid
August 14, 2025 at 7:15 PM
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
#StructuralBiology #Membrane #lipid
Reposted by Alex Martiniere
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. 🧵
New preprint: ecoevorxiv.org/repository/v...
Here’s the idea. 🧵
August 4, 2025 at 8:34 PM
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. 🧵
New preprint: ecoevorxiv.org/repository/v...
Here’s the idea. 🧵
Reposted by Alex Martiniere
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...
August 3, 2025 at 3:53 AM
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...
Reposted by Alex Martiniere
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...
July 22, 2025 at 9:52 AM
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...
Reposted by Alex Martiniere
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...
July 24, 2025 at 6:03 PM
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...
Super interesting work on hydrotropism and gravitropism
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
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...
www.pnas.org
June 27, 2025 at 3:53 PM
Super interesting work on hydrotropism and gravitropism
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by Alex Martiniere
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/...
www.science.org/doi/10.1126/...
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...
www.science.org
June 13, 2025 at 9:20 AM
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/...
www.science.org/doi/10.1126/...
Reposted by Alex Martiniere
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...
lejournal.cnrs.fr/articles/pla...
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...
lejournal.cnrs.fr
May 16, 2025 at 6:28 AM
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...
lejournal.cnrs.fr/articles/pla...
Reposted by Alex Martiniere
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
May 9, 2025 at 4:15 PM
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
Reposted by Alex Martiniere
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...
May 11, 2025 at 10:04 AM
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...
Reposted by Alex Martiniere
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
#Cancer #Membrane #lipid #CellSignaling #Biochemistry
May 9, 2025 at 2:32 PM
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
#Cancer #Membrane #lipid #CellSignaling #Biochemistry