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Reposted

Journal of Experimental Botany @jxbotany.bsky.social · 9d

🌱📖 RESEARCH 🌱📖

Bascom et al. used CRIPSR/Cas9 to produce a septuple AUXIN RESPONSE FACTOR mutant in the model bryophyte Physcomitrium patens , revealing the developmental consequences of the complete loss of auxin-mediated gene activation 🌱📖

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 4.Model of auxin de-repression. When the auxin concentration in the nucleus is low (A), the effect of ARFas, as well as other non-ARF transcription factors, is limited by Aux/IAA-mediated recruitment of the TPL co-repressor, closing the locus. As auxin levels rise (B), AFBs ubiquitinate Aux/IAAs, thereby allowing all transcription factors to act on the locus. As a result, there is a significant difference in gene expression between baseline and auxin induction. In afb1,2,3,4 mutants (C), Aux/IAAs are not degraded, and therefore the promoter remains closed. In the iaa2mDII degron mutant (D), one of three Aux/IAAs is stabilized, thereby resulting in only partial promoter closure. In arfasept lines, Aux/IAAs are not recruited to the promoter. While gene expression remains diminished without activating ARFs, other non-ARF transcription factors are allowed to provide baseline gene expression. However, there is no auxin-mediated induction.

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Reposted

Journal of Experimental Botany @jxbotany.bsky.social · 16d

🌱🧬 INSIGHT 🧬🌱

Complete loss of A-ARF activity in bryophytes reveals a role for auxin-adjacent regulatory networks – Flores-Sandoval & Bowman comment on an original research article by Bascom et al.

📝 Insight: doi.org/10.1093/jxb/...

🔬 Research: doi.org/10.1093/jxb/...

#PlantScience 🧪

Fig. 1 (shortened, full legend in paper): Auxin responses and auxin-adjacent transcription factors (TFs) control developmental transitions in bryophyte gametophytes. (A) Wild-type (WT) auxin responses (left) cycling between low and high auxin. Under low auxin, A-ARFs are kept in a repressive complex by AUX/IAAs via recruitment of the TOPLESS co-repressor and associated histone deacetylases (HDACs). Under high auxin, auxin mediates the interaction between TIR1/AFB and AUX/IAAs, leading to AUX/IAA ubiquitination and proteolysis. A-ARFs are then free to interact with SWI/SNF ATPases and histone acetylases (HACs), leading to open chromatin states. Positive (TIR1/AFB, A-ARF, SWI/SNF, HAC), negative (AUX/IAA, TPL, HDAC) and auxin-adjacent (TFs) factors are shown. Auxin is represented by an A.

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Reposted

KleineVehnLab @kleinevehnlab.bsky.social · 18d

Thrilled to share our latest story on the ERAD machinery and how it controls the conditional turnover of PIN-LIKES for acclimative growth

www.science.org/doi/10.1126/...

ERAD machinery controls the conditional turnover of PIN-LIKES in plants

Plant ERAD machinery governs the turnover of auxin transporters involved in developmental and stress responses.

www.science.org

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Reposted

🔬🌱 CBGP | Centro de Biotecnología y Genómica de Plantas @cbgpmadrid.bsky.social · 19d

🌱 #SeminarSeriesCBGP is back! 🎙️

Join us Sept 2025–Jan 2026 for top voices in plant science at CBGP

📍 CBGP Auditorium + Zoom
🕛 12:30 PM
🔗 Speakers & calendar: shorturl.at/Atsyn
📎 Full schedule w/ Zoom links: shorturl.at/yT3e6

Don’t miss it! 👩‍🔬👨‍🔬

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wabniklab.bsky.social @wabniklab.bsky.social · 20d

Did you know that there is a cell cycle duration gradient in plant root meristem? New story by joining forces between Plant dynamics lab and Crisanto Gutiérrez & Bénédicte Desvoyes lab @cbgpmadrid.bsky.social @cbm-csic-uam.bsky.social #Plants #roots #cellcycle www.nature.com/articles/s41...

Stem cell regulators drive a G1 duration gradient during plant root development - Nature Plants

A positional and developmentally regulated cell cycle duration gradient exists in the root meristem whereby the G1 phase is very long close to the stem cell niche. This relies on the interplay of PLET...

www.nature.com

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Reposted

🔬🌱 CBGP | Centro de Biotecnología y Genómica de Plantas @cbgpmadrid.bsky.social · 28d

#PaperCBGP

🌱🔬 Plant cell walls are more than physical barriers. They are dynamic shields!

A CBGP review published in @jxbotany.bsky.social explores how cell walls shape plant defense against pests, paving the way for more sustainable farming strategies ♻️🌍

📎 More: shorturl.at/GLNYL

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wabniklab.bsky.social @wabniklab.bsky.social · Jun 17

#ICAR2025

wabniklab.bsky.social @wabniklab.bsky.social · Jun 17

Check out our lab posters: P125 and P88 #ICAR25 #PlantScience @cbgpmadrid.bsky.social To learn about New 4D modeling simulators and auxin-dependent root growth!!

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wabniklab.bsky.social @wabniklab.bsky.social · May 8

PlantDynamics is recruiting a programmer to join efforts in developing plant (and other) organ simulators
euraxess.ec.europa.eu/jobs/341946
Contact me directly if you are interested: [email protected]

Join the PlantDynamics to develop next-gen 4D organ simulators

The @PlantDynamics Laboratory (https://pdlab.es) is seeking a motivated and talented

euraxess.ec.europa.eu

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Reposted

RichardSmithLab @richardsmithlab.bsky.social · Apr 28

The Camelot paper is now published. If you ever wanted to try biomechanics, Camelot is an inexpensive and easy way to get started. @matmajda.bsky.social

t.co/x3l0lllNS2

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Reposted

Stephan Pollmann @stephanpollmann.bsky.social · Apr 11

We have a new Doctor form the #pollmannlab in town 👨🏻‍🎓Congratulations to Adrián to his wonderful PhD defense 🎉 Outstanding job. Also a great shoutout to the panel for the critical assessment of the work. We will surely pick up some of the points.
@cbgpmadrid.bsky.social @etsiaabupm.bsky.social @upm.es

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Reposted

Nature Plants @natplants.nature.com · Apr 7

Our editors write:

- Cell polarity: Unequal signalling and biosynthesis in daughter cells rdcu.be/egIl5

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wabniklab.bsky.social @wabniklab.bsky.social · Mar 30

de nada!

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Reposted

Kierzkowski Lab @kierzkowskilab.bsky.social · Mar 28

Research Briefing by @routierlab.bsky.social and @sysilveira.bsky.social about our recent paper @natureplants.bsky.social

Anne-Lise Routier-Kierzkowska @routierlab.bsky.social · Mar 28

A summary of our latest paper, by @sysilveira.bsky.social and I
rdcu.be/efwvE

Growth in internal tissues sculpts plant organs in 3D

Nature Plants - Growth-derived mechanical conflicts between tissues are crucial during plant organogenesis. In-depth 3D growth analysis combined with genetics and mechanical modelling reveal that...

rdcu.be

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Reposted

Kierzkowski Lab @kierzkowskilab.bsky.social · Mar 26

Do you want to know how mechanical interaction between tissue layers controls the formation of complex organ shapes in plants? 🔬🌼
🚨Our latest collaborative work with @routierlab.bsky.social is now published @natureplants.bsky.social
Find out more👉 rdcu.be/efad3

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...

rdcu.be

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wabniklab.bsky.social @wabniklab.bsky.social · Mar 10

Fantastic collaboration! and exciting findings! congratz to all involved!

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Reposted

Jenny Russinova @jennyrussinova.bsky.social · Mar 10

🌱💡 Computational modeling and genetic experiments confirm that this asymmetry optimizes root growth, ensuring robust meristem function. @wabniklab.bsky.social

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 28

Time-lapse imaging back then, Zeiss scope from 1950. #microscopy #timelapse #imaging

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 21

Thx!

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 21

Using computer modeling and quantitative analysis of plant transcriptomes, we show how common design principles in core clock control photoperiod-dependent florigen function in short-day vs long-day plants #clock #circadianclock #oscillators #flowering #plantgrowth

wabniklab.bsky.social @wabniklab.bsky.social · Feb 20

Our take on Photoperiod regulation of core clock across plants:
www.sciencedirect.com/science/arti...

Regulatory principles of photoperiod-driven clock function in plants

The circadian clock provides a fundamental timing mechanism for plant fitting to seasonal changes in the photoperiod. Although photoperiodic regulatio…

www.sciencedirect.com

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 20

Our take on Photoperiod regulation of core clock across plants:
www.sciencedirect.com/science/arti...

Regulatory principles of photoperiod-driven clock function in plants

The circadian clock provides a fundamental timing mechanism for plant fitting to seasonal changes in the photoperiod. Although photoperiodic regulatio…

www.sciencedirect.com

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 20

very neat! Congratulations!

Reposted

Emmanuelle Bayer @emmanuellebayer.bsky.social · Feb 20

and @ataly.bsky.social @bic-bordeaux.bsky.social
First authors Jessica Perez-Sancho, Marija Smokvarska , Gweenogan Dubois .

Emmanuelle Bayer @emmanuellebayer.bsky.social · Feb 20

Great collaboration with @yvonjaillais.bsky.social 🌱 Plants use membrane contact sites (MCS) for cell-to-cell signaling!
➡️ MCTP tethers & PI4P regulate ER-PM contacts in plasmodesmata, impacting trafficking.
➡️ MCS roles span intra- and intercellular communication.

www.cell.com/cell/abstrac...

Plasmodesmata act as unconventional membrane contact sites regulating intercellular molecular exchange in plants

Plant intercellular communication is regulated via tubular ER-PM membrane contact through PI4P and MCTP protein tethers.

www.cell.com

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wabniklab.bsky.social @wabniklab.bsky.social · Feb 3

Our lab is looking for a enthusiastic researcher with the master degree (Computational Biology, Computer Science, Game development) to develop next-gen computer games to model organ development in 4D. If you are interested drop me an email: [email protected]

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Reposted

🔬🌱 CBGP | Centro de Biotecnología y Genómica de Plantas @cbgpmadrid.bsky.social · Feb 3

#SeminarCBGP | 07/02/25 - 12:30h

🧑🏽‍🔬 Dr. Robertas Ursache
🌍 Centro de Investigación en Agrigenómica (CRAG)
Barcelona, Spain
📝 "The suberinterestingrole of GELP proteins”
💻 Zoom ID: 867 7606 8944 | Código acceso: 189185

#somosUPM

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