Abdellah Lakehal
@abdellahlakehal.bsky.social
Postdoc @PSB_VIB. Interested in Plant Development and Evolutionary Biology with focus on root stem cells
Reposted by Abdellah Lakehal
Out in @science.org this week. Soils drive convergence in the regulation of vascular tension in land plants. www.science.org/doi/10.1126/...
#plantscience
#ecophysiology
#plantscience
#ecophysiology
Soils drive convergence in the regulation of vascular tension in land plants
Terrestrial vascular plants operate under negative water potential, which results in hydraulic tension in the vascular system. Vascular tension varies with transpiration and soil drying and is regulat...
www.science.org
February 2, 2026 at 1:50 PM
Out in @science.org this week. Soils drive convergence in the regulation of vascular tension in land plants. www.science.org/doi/10.1126/...
#plantscience
#ecophysiology
#plantscience
#ecophysiology
Reposted by Abdellah Lakehal
Happy to see this out! We describe a patterning mechanism underlying rhizoid specification in Marchantia. Contrary to classic patterning mechanisms (e.g., Turing), rhizoid specification depends on both randomness and lateral inhibition, involves subcritical bifurcations, and occurs at criticality!
Cell-type specification at criticality underlies rhizoid patterning in the liverwort Marchantia polymorpha
Rhizoid specification in Marchantia polymorpha gemmae involves lateral inhibition mediated by the microRNA FRH1, which represses the rhizoid-specific …
www.sciencedirect.com
December 23, 2025 at 6:07 PM
Happy to see this out! We describe a patterning mechanism underlying rhizoid specification in Marchantia. Contrary to classic patterning mechanisms (e.g., Turing), rhizoid specification depends on both randomness and lateral inhibition, involves subcritical bifurcations, and occurs at criticality!
Reposted by Abdellah Lakehal
I had a great time writing this dispatch @currentbiology.bsky.social about Jacob Suissa's recent paper on the link between fern phyllotaxis and vascular architecture. "Evo–devo: Ferns flourished due to developmental covariance between leaves and vasculature"
authors.elsevier.com/a/1mH793QW8S...
authors.elsevier.com/a/1mH793QW8S...
December 15, 2025 at 4:09 PM
I had a great time writing this dispatch @currentbiology.bsky.social about Jacob Suissa's recent paper on the link between fern phyllotaxis and vascular architecture. "Evo–devo: Ferns flourished due to developmental covariance between leaves and vasculature"
authors.elsevier.com/a/1mH793QW8S...
authors.elsevier.com/a/1mH793QW8S...
Reposted by Abdellah Lakehal
ASSISTANT PROFESSOR IN NON-SEED PLANT DIVERSITY (BRYOPHYTES, FERNS, LYCOPHYTES).
Vancouver, Canada.
#plantscijobs #plantscijob
botany.ubc.ca/job-postings...
Vancouver, Canada.
#plantscijobs #plantscijob
botany.ubc.ca/job-postings...
UBC
botany.ubc.ca
December 12, 2025 at 8:42 AM
ASSISTANT PROFESSOR IN NON-SEED PLANT DIVERSITY (BRYOPHYTES, FERNS, LYCOPHYTES).
Vancouver, Canada.
#plantscijobs #plantscijob
botany.ubc.ca/job-postings...
Vancouver, Canada.
#plantscijobs #plantscijob
botany.ubc.ca/job-postings...
Reposted by Abdellah Lakehal
Out today... From Bowman lab, MpARF2 is the first essential transcription factor to be described for meristem maintenance in Marchantia. Glad to have contributed to another paper with Eduardo. #plantsciences #evodevo www.sciencedirect.com/science/arti...
The B-class auxin response factor MpARF2 is essential for meristem organization in free-living plant gametophytes
Land plants (embryophytes) are multicellular eukaryotes with a remarkable capacity to grow continuously during their life span. They achieve this by m…
www.sciencedirect.com
December 5, 2025 at 4:29 PM
Out today... From Bowman lab, MpARF2 is the first essential transcription factor to be described for meristem maintenance in Marchantia. Glad to have contributed to another paper with Eduardo. #plantsciences #evodevo www.sciencedirect.com/science/arti...
Reposted by Abdellah Lakehal
Proud and honoured to be one of the two laureates of the 2025 Rósen Linné Prize. Warm thanks to all students, PhD students and postdocs who joined me over the years and greatly contributed to our research success. Thanks also to colleagues at UPSC, IJPB and INRAE for their continued support always.
#IJPB Congratulations to Catherine Bellini 👏👩🔬🌿
For more check out our news on @ijpb-versaillescly.bsky.social website
👉 ijpb.versailles.inrae.fr/en/news/cath...
For more check out our news on @ijpb-versaillescly.bsky.social website
👉 ijpb.versailles.inrae.fr/en/news/cath...
December 4, 2025 at 4:00 PM
Proud and honoured to be one of the two laureates of the 2025 Rósen Linné Prize. Warm thanks to all students, PhD students and postdocs who joined me over the years and greatly contributed to our research success. Thanks also to colleagues at UPSC, IJPB and INRAE for their continued support always.
Reposted by Abdellah Lakehal
🧪🌾 @cathbell62.bsky.social works @umeauniversitet.bsky.social & @ijpb-versaillescly.bsky.social in France and has been instrumental to establish #INUPRAG, a collaboration between @umeaplantsciencecentre.se, @inrae-france.bsky.social & @cragenomica.bsky.social.
December 3, 2025 at 5:11 PM
🧪🌾 @cathbell62.bsky.social works @umeauniversitet.bsky.social & @ijpb-versaillescly.bsky.social in France and has been instrumental to establish #INUPRAG, a collaboration between @umeaplantsciencecentre.se, @inrae-france.bsky.social & @cragenomica.bsky.social.
Reposted by Abdellah Lakehal
One environmental factor that affects crop yield is soil stress. Work @nature shows how soil compaction stress affects plant root growth through hormonal signals and cell-wall remodelling.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
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...
www.nature.com
November 27, 2025 at 3:42 PM
One environmental factor that affects crop yield is soil stress. Work @nature shows how soil compaction stress affects plant root growth through hormonal signals and cell-wall remodelling.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Abdellah Lakehal
Our contribution to the Day of Sciences last Sunday was again a great success!
November 26, 2025 at 6:14 PM
Our contribution to the Day of Sciences last Sunday was again a great success!
Reposted by Abdellah Lakehal
Very inspiring meeting so far 👍
This year’s @embo.org Workshop is held at the @viennabiocenter.bsky.social. Open to 120 participants, it is over-enrolled with 180 attendees! Thank you to the organizers @isabelmonte.bsky.social, Aino Komatsu, @moodytomato.bsky.social, and Liam Dolan for making this event possible. #EMBOplantEvo
November 25, 2025 at 7:40 PM
Very inspiring meeting so far 👍
Reposted by Abdellah Lakehal
warwick.ac.uk/fac/cross_fa...
I also have a plant evo-devo PhD opportunity open to study the evolutionary origins of female meiosis with me ^^.
Deadline Thursday 27th November, so if you know anyone who might be interested, please do let them know!
#Plantscience
I also have a plant evo-devo PhD opportunity open to study the evolutionary origins of female meiosis with me ^^.
Deadline Thursday 27th November, so if you know anyone who might be interested, please do let them know!
#Plantscience
November 19, 2025 at 4:35 PM
warwick.ac.uk/fac/cross_fa...
I also have a plant evo-devo PhD opportunity open to study the evolutionary origins of female meiosis with me ^^.
Deadline Thursday 27th November, so if you know anyone who might be interested, please do let them know!
#Plantscience
I also have a plant evo-devo PhD opportunity open to study the evolutionary origins of female meiosis with me ^^.
Deadline Thursday 27th November, so if you know anyone who might be interested, please do let them know!
#Plantscience
Reposted by Abdellah Lakehal
New OA Article: "Cambium LBDs promote radial growth by regulating PLL-mediated pectin metabolism" rdcu.be/eP4mp
LBD TFs in the cambium drive radial plant growth by regulating PECTATE LYASE-LIKE (PLL) enzymes that remodel cell wall pectin, promoting cell expansion.
LBD TFs in the cambium drive radial plant growth by regulating PECTATE LYASE-LIKE (PLL) enzymes that remodel cell wall pectin, promoting cell expansion.
November 16, 2025 at 9:32 AM
Reposted by Abdellah Lakehal
A synthetic transcription cascade enables direct in planta shoot regeneration for transgenesis and gene editing in multiple plants #resource #MolecularPlant cell.com/molecular-pl...
November 15, 2025 at 12:50 PM
A synthetic transcription cascade enables direct in planta shoot regeneration for transgenesis and gene editing in multiple plants #resource #MolecularPlant cell.com/molecular-pl...
Reposted by Abdellah Lakehal
Huge congratulations @jeremywyman.bsky.social @instmolplantsci.bsky.social for publishing the results of your masters thesis @annbot.bsky.social
The work includes a new reconstruction of the Carboniferous isoetalean Oxroadia by the brilliant @palaeojules.bsky.social
academic.oup.com/aob/advance-...
The work includes a new reconstruction of the Carboniferous isoetalean Oxroadia by the brilliant @palaeojules.bsky.social
academic.oup.com/aob/advance-...
November 5, 2025 at 10:37 AM
Huge congratulations @jeremywyman.bsky.social @instmolplantsci.bsky.social for publishing the results of your masters thesis @annbot.bsky.social
The work includes a new reconstruction of the Carboniferous isoetalean Oxroadia by the brilliant @palaeojules.bsky.social
academic.oup.com/aob/advance-...
The work includes a new reconstruction of the Carboniferous isoetalean Oxroadia by the brilliant @palaeojules.bsky.social
academic.oup.com/aob/advance-...
Reposted by Abdellah Lakehal
Reposted by Abdellah Lakehal
Check out the ToC of our latest Special Issue about auxin in plant development.
https://bit.ly/3KSt2BW
All articles are free to read for 2 months. @srobertgroup.bsky.social
https://bit.ly/3KSt2BW
All articles are free to read for 2 months. @srobertgroup.bsky.social
October 23, 2025 at 12:00 PM
Check out the ToC of our latest Special Issue about auxin in plant development.
https://bit.ly/3KSt2BW
All articles are free to read for 2 months. @srobertgroup.bsky.social
https://bit.ly/3KSt2BW
All articles are free to read for 2 months. @srobertgroup.bsky.social
Reposted by Abdellah Lakehal
@marhava.bsky.social and myself have edited a special issue on Auxin for Physiologia plantarum! Have a look at the nice contributions! @umeaplantsciencecentre.se
onlinelibrary.wiley.com/doi/toc/10.1...
onlinelibrary.wiley.com/doi/toc/10.1...
The A to Z of Auxin in Plant Development: Physiologia Plantarum
Click on the title to browse this issue
onlinelibrary.wiley.com
October 17, 2025 at 9:06 AM
@marhava.bsky.social and myself have edited a special issue on Auxin for Physiologia plantarum! Have a look at the nice contributions! @umeaplantsciencecentre.se
onlinelibrary.wiley.com/doi/toc/10.1...
onlinelibrary.wiley.com/doi/toc/10.1...
Reposted by Abdellah Lakehal
Delighted to present our Tansley Insight on what we know about the potential of different root cortex layers to do develop into different things!
👩🔬 @dorotakawa.bsky.social @hannahschneider.bsky.social
📗 @newphyt.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
👩🔬 @dorotakawa.bsky.social @hannahschneider.bsky.social
📗 @newphyt.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
Coordination of cortex modifications in time, space, and under stress
In roots, cell-type-specific differentiation enables specialized responses to environmental stress. The cortex, located between the vasculature and epidermis, is a key site for stress-responsive modi....
nph.onlinelibrary.wiley.com
September 19, 2025 at 3:32 PM
Delighted to present our Tansley Insight on what we know about the potential of different root cortex layers to do develop into different things!
👩🔬 @dorotakawa.bsky.social @hannahschneider.bsky.social
📗 @newphyt.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
👩🔬 @dorotakawa.bsky.social @hannahschneider.bsky.social
📗 @newphyt.bsky.social
nph.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Abdellah Lakehal
New OA Article: "A single-cell rice atlas integrates multi-species data to reveal cis-regulatory evolution" rdcu.be/eHce3
Chromatin accessibility in rice & related grasses: how regulatory DNA elements evolve across cell types & species; identifying potential silencers.
Chromatin accessibility in rice & related grasses: how regulatory DNA elements evolve across cell types & species; identifying potential silencers.
September 19, 2025 at 8:51 AM
New OA Article: "A single-cell rice atlas integrates multi-species data to reveal cis-regulatory evolution" rdcu.be/eHce3
Chromatin accessibility in rice & related grasses: how regulatory DNA elements evolve across cell types & species; identifying potential silencers.
Chromatin accessibility in rice & related grasses: how regulatory DNA elements evolve across cell types & species; identifying potential silencers.
Reposted by Abdellah Lakehal
Start of the Root Development group (VIB-Ugent) on Bluesky
September 12, 2025 at 2:16 PM
Start of the Root Development group (VIB-Ugent) on Bluesky
Reposted by Abdellah Lakehal
Looking for some clarity in the labyrinth of terms regarding lateral root initiation (priming, founder cell specification, pre-branch sites, oscillation zone, root clock,...)? Here is our new paper hopefully bringing some light in the darkness:
track.smtpsendmail.com/9032119/c?p=...
track.smtpsendmail.com/9032119/c?p=...
Marker-assisted in vivo imaging reveals pre-patterning events prior to lateral root organogenesis
The branching pattern of the Arabidopsis root is established as early as in the distal tip of the primary root.
track.smtpsendmail.com
September 12, 2025 at 2:27 PM
Looking for some clarity in the labyrinth of terms regarding lateral root initiation (priming, founder cell specification, pre-branch sites, oscillation zone, root clock,...)? Here is our new paper hopefully bringing some light in the darkness:
track.smtpsendmail.com/9032119/c?p=...
track.smtpsendmail.com/9032119/c?p=...
Reposted by Abdellah Lakehal
We are happy to present the magnum opus of Sjoerd Woudenberg, at the close of his PhD – Transgenerational inheritance of the polarity axis in a fern embryo…a thread (1/17)
tinyurl.com/4y53xekv
tinyurl.com/4y53xekv
Transgenerational polarity axis inheritance during Ceratopteris embryogenesis
For sexually reproducing organisms to pass on their genetic information, progeny must successfully establish. Various life history strategies have evolved, using either dispersal of large numbers of p...
tinyurl.com
September 1, 2025 at 2:28 PM
We are happy to present the magnum opus of Sjoerd Woudenberg, at the close of his PhD – Transgenerational inheritance of the polarity axis in a fern embryo…a thread (1/17)
tinyurl.com/4y53xekv
tinyurl.com/4y53xekv
Reposted by Abdellah Lakehal
How plants sense injury in their barrier tissue, periderm? Painstakingly detailed and amazing work by post doc Hiroyuki Iida shows that wounding is sensed by the diffusion of two gases: ethylene and oxygen. @treebiocoe.bsky.social @erc.europa.eu 1/x 🧵 www.nature.com/articles/s41...
Plants monitor the integrity of their barrier by sensing gas diffusion - Nature
A study using Arabidopsis shows that plants can monitor the integrity of their outer barriers by sensing gas diffusion, enabling them to initiate wound repair to prevent water loss and pathogen entry.
www.nature.com
July 2, 2025 at 4:20 PM
How plants sense injury in their barrier tissue, periderm? Painstakingly detailed and amazing work by post doc Hiroyuki Iida shows that wounding is sensed by the diffusion of two gases: ethylene and oxygen. @treebiocoe.bsky.social @erc.europa.eu 1/x 🧵 www.nature.com/articles/s41...
Reposted by Abdellah Lakehal
How do plants notice loss of structural barriers (e.g. the periderm, which prevents water loss and pathogen infection) to regenerate them? Work @nature shows that plants sense damage to barrier integrity from diffusion of gases such as ethylene and oxygen. shorturl.at/FIhJ8
& N&V
shorturl.at/u7PYs
& N&V
shorturl.at/u7PYs
Injured plants use gaseous cues to initiate repair of their outer layers
The periderm layers of plants form an outer protective barrier. If the periderm is broken, movement of the gases ethylene and oxygen triggers a healing process.
shorturl.at
July 2, 2025 at 3:14 PM
How do plants notice loss of structural barriers (e.g. the periderm, which prevents water loss and pathogen infection) to regenerate them? Work @nature shows that plants sense damage to barrier integrity from diffusion of gases such as ethylene and oxygen. shorturl.at/FIhJ8
& N&V
shorturl.at/u7PYs
& N&V
shorturl.at/u7PYs
Reposted by Abdellah Lakehal
I just published: Mountains can meet: farming the desert with microbes, not fertilizers
In the harsh deserts of Southern Algeria, Nadjette Djemouai is uncovering the power of native microbes to support sustainable agriculture.
@getgenome.bsky.social 🇩🇿
kamounlab.medium.com/mountains-ca...
In the harsh deserts of Southern Algeria, Nadjette Djemouai is uncovering the power of native microbes to support sustainable agriculture.
@getgenome.bsky.social 🇩🇿
kamounlab.medium.com/mountains-ca...
June 25, 2025 at 12:32 PM
I just published: Mountains can meet: farming the desert with microbes, not fertilizers
In the harsh deserts of Southern Algeria, Nadjette Djemouai is uncovering the power of native microbes to support sustainable agriculture.
@getgenome.bsky.social 🇩🇿
kamounlab.medium.com/mountains-ca...
In the harsh deserts of Southern Algeria, Nadjette Djemouai is uncovering the power of native microbes to support sustainable agriculture.
@getgenome.bsky.social 🇩🇿
kamounlab.medium.com/mountains-ca...