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Thomas Greb

@thomasgreb.bsky.social
795 followers 311 following 41 posts

plant biologist, interested in cellular coordination Professor @cosheidelberg.bsky.social of @uniheidelberg.bsky.social www.cos.uni-heidelberg.de/en/resear…

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Reposted by Thomas Greb
Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 29/09/2026
A huge thank you to everyone who attended #SLS26 & our concluding keynote speaker @apmahonen.bsky.social for a fascinating talk and exciting new insights into how stem cell fate decisions are regulated in the vascular cambium. Read more about his team's work: www.helsinki.fi/en/researchg...
Group photo of attendees at #SLS26Ari Pekka Mähönen presenting at #SLS26
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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 22/09/2026
Keynote by @luciastrader.bsky.social from Salk Institute opens #SLS26 with 'Transcription in plants' & invites the audience to Choose Your Own Adventure! Condensates won!
Professor Lucia Strader stabding at lectern delivering keynote at Sainsbury Laboratory Symposium 2026Graphic showing environmental conditions that impact auxin levels and the plant functions that are affected by auxinProfessor Strader asked audience which are they wanted to be featured: Choice 1: Effect of actin-mediated movement of condensates. Choice 2: Effect of temperature on ARF stability. Choice 1 was the most popular.Graphic comparing possible similarities in movement and dissolving of condensates in plant cells and neurons
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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 22/09/2026
@mc-caillaud.bsky.social's talk at #SLS26 suggests actin-mediated regulation allows flexible implementation of a shared core strategy, favouring division perpendicular to the growth axis and symmetric partitioning, while avoiding lateral wall anchoring. www.ens-lyon.fr/RDP/signalis...
Marie-Cécile Caillaud from RDP - ENS Lyon presenting at #SLS26First slide of Marie-Cécile Caillaud's talk titled "A multiscale approach to understanding cell division orientation in plant morphogenesis" with  image of plant cells with cell walls coloured green.
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Nature Plants @natplants.nature.com · 28/08/2026
New OA Article: "PAX-regulated self-organizing polarity drives procambial strand formation" rdcu.be/fCz7y The polarly localized protein kinase converts auxin cues into coordinated cell polarity, propagating polarity between neighbouring cells to form connected veins. #PlantScience
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ZMBP @zmbp-tuebingen.bsky.social · 21/08/2026
📣 Job alert! PhD position on Regulation of Pattern Scaling in Plant Stem Cell Niches in Marja Timmermans's lab and co-supervised by @cecilialaram.bsky.social The project is part of the @cerealcell.bsky.social consortium. The position is available from October 1st Apply now or share it! #PlantSciJob
Advert of the PhD position. Applications should be sent to Marja Timmermans or Cecilia Lara-Mondragón as a single pdf containing the motivation letter, CV, and contact details of 3 referees. 
The advert shows a maize plant and several images of maize shoot apical meristems.
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Thomas Greb @thomasgreb.bsky.social · 18/08/2026
I had missed this simply beautiful story from the lab of Michael Lenhard: Supergene control of chiral development in mirror-image flowers | Science www.science.org/doi/10.1126/...
science.org
Supergene control of chiral development in mirror-image flowers
How genes determine the development of chiral structures is a fascinating question. The reciprocal placement of female and male organs on opposite sides of mirror-image flowers promotes efficient cros...
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Reposted by Thomas Greb
Max Planck Institute for Plant Breeding Research @mpipz.bsky.social · 18/08/2026
🔬Big news🥳 We’re excited to welcome Prof. Dr. Rosa Lozano-Durán as new Director and head of the Department of Plant Virology @mpipz.bsky.social Her research focuses on how plant viruses interact with their hosts. 🎉Welcome to MPIPZ, Rosa 🌿🌱 www.mpipz.mpg.de/5842514/loza...
mpipz.mpg.de
The Max Planck Institute for Plant Breeding Research welcomes Prof. Dr. Rosa Lozano-Durán as new director
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Yasin Dagdas @plantophagy.bsky.social · 29/07/2026
@oeaw.bsky.social is searching for the next #director of @gmivienna.bsky.social ‼️It’s a huge opportunity to shape the future of #plantscience oeawnr.onlyfy.jobs/de/job/u3g5t...
oeawnr.onlyfy.jobs
Scientific Director (f/m/x)
OeAW - Discovering the futureThe Gregor Mendel Institute of Molecular Plant Biology (GMI), part of the Austrian Academy of Sciences (OeAW), is seeking to appoint a visionary Scientific Director to lea
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Dolf Weijers @dolfweijers.bsky.social · 23/07/2026
Online at @cellcellpress.bsky.social today: everything you always wanted (???) to know about Auxin Signaling and never dared to ask. From Jiashu, Aaron and Martijn in our team, with @luciastrader.bsky.social and Tongda Xu www.sciencedirect.com/science/arti...
sciencedirect.com
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Thomas Greb @thomasgreb.bsky.social · 22/07/2026
Can't resist to post this one: Summer retreat of the radial plant growth lab! What a great day with an exceptionally nice bunch of human beings.
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Jan Lohmann @meristemania.bsky.social · 20/07/2026
Awesome Symposium coming up @cosheidelberg.bsky.social in September! Check it out - registration is free. www.cos.uni-heidelberg.de/en/cos-sympo...
cos.uni-heidelberg.de
COS Symposium 2026 - Centre for Organismal Studies
Venue: Lecture hallCentre for Organismal Studies – Heidelberg UniversityIm Neuenheimer Feld 230
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Thomas Greb @thomasgreb.bsky.social · 20/07/2026
In an heoric endeavor, Xiomin Liu, PhD student in the lab, characterized the dynamics and topology of the cell division machinery during cambium stem cell divisions. Super fruitful collaboration with the group of Sabine Müller (@phragmoplast.bsky.social). doi.org/10.1111/nph....
doi.org
The preprophase band is dispensable for robust cell division orientation in wood‐forming cambium stem cells
Characterization of periclinal and anticlinal cell divisions in dividing cambium stem cells (CSCs). (a) Scheme indicating periclinal and anticlinal cell divisions in CSCs in the Arabidopsis hypocotyl...
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GreenRobust @greenrobust.de · 08/07/2026
How plant stem cells are kept robust summarized by GreenRobust PIs Jan Lohmann (@meristemania.bsky.social) and Thomas Greb (@thomasgreb.bsky.social). Enjoy! www.sciencedirect.com/science/arti...
sciencedirect.com
Plant stem cell systems: Robust by design
Plants maintain active stem cell populations throughout their lives, yet these systems are remarkably resilient to genetic, environmental, and mechani…
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Thomas Greb @thomasgreb.bsky.social · 04/07/2026
Super nice story of the Nimchuk lab! CLV signaling represses vascular development in the shoot apical meristem: www.biorxiv.org/content/10.6...
biorxiv.org
CLAVATA3 peptide signaling from stem cells integrates vascular organization and stem cell maintenance in Arabidopsis shoots
Terrestrial plant biomass relies on the formation of vascular bundles (VBs) comprising xylem, cambial, and phloem cells that drive secondary growth and wood formation. How VB formation and organizatio...
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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 19/06/2026
New insights into cell fates of the Arabidopsis inflorescence meristem @sebamorenor.bsky.social generated the most detailed map to date of this critical stem cell niche, identifying 18 distinct cell type clusters, including precursors to cortex & vascular tissues www.slcu.cam.ac.uk/news/new-ins...
Inflorescence meristem cell identities: (A) Force-directed graph layout of clusters associated with inner cell layers such as early primordia (EP), undifferentiated cells, procambium, xylem parenchyma and cortex. Clusters are represented by different colours. (B) Schematic illustration of selected cell identities in the primary stem and inflorescence meristem. Procambial strands arise in developing primordia and give rise to vascular bundles, which subsequently differentiate into phloem, cambium and xylem within the primary stem. The exact locations of cell identities in the primary stem are schematically represented rather than accurately portrayed. Illustration by first author first author Dr Sebastián Moreno-Ramírez. Source: Fig 6 in Moreno-Ramirez et al Science Advances 2026.
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Rebekka Weinel @rebekkaweinel-uhd.bsky.social · 01/06/2026
WIR STELLEN EIN: Stabsstelle #Exzellenzstrategie an der #UniversitätHeidelberg Referent*in, 100% E13, entfristet, zum nächstmöglichen Zeitpunkt Gerne weiterverteilen! #Heidelberg #Stellenausschreibung adb.zuv.uni-heidelberg.de/info/INFO_FD...
adb.zuv.uni-heidelberg.de
Stellenausschreibungen an der Universität Heidelberg
Infosystem der ZUV
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COS Heidelberg @cosheidelberg.bsky.social · 29/05/2026
New paper from the Yasin Dagdas (@plantophagy.bsky.social) group, this time in @science.org, on how plant cells cope with viral infection and how selective autophagy delays cell death to give plants a chance to survive. Chapeau and congratulations to all the authors! www.science.org/doi/10.1126/...
science.org
Selective autophagy fine-tunes plant immunity to promote cell survival during viral infection
RNA viruses co-opt host endomembranes to form replication complexes, often triggering cellular stress and immune responses. Here, we show that Arabidopsis thaliana activates selective autophagy to res...
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Genome Biology and Evolution @genomebiolevol.bsky.social · 28/05/2026
Tropaeolum tuberosum is a tuber-forming crop native to the Andes, but remains an underutilized and little-known species - Ruiz-Mateus et al. now assemble a highly complete genome of this species as a foundational resource. 🔗 doi.org/10.1093/gbe/evag115 📷 Pascal Hunziker #genome #evolution
GBE | Reference Genome Assembly of a Tetraploid Accession of the Tuber Crop Tropaeolum tuberosum

Orange tubers of the Andean underutilized crop Tropaeolum tuberosum with purple streaks and dots. Photo credit: Pascal Hunziker
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Nature Plants @natplants.nature.com · 22/05/2026
New OA Resource: "A transcriptional atlas of early Arabidopsis seed development suggests mechanisms for inter-tissue coordination" rdcu.be/fj8H2 Single-nucleus RNAseq profiling of early Arabidopsis seed development. #PlantScience
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Kurianlab @kurianlab.bsky.social · 10/05/2026
'Scientific advancement depends on freedom, openness, and truth - the very values fascism eventually destroys. Our collective response will shape the future.'
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GreenRobust @greenrobust.de · 16/04/2026
Super stimulating talk by Olivier Hamant from @rdplab.bsky.social on the tradeoff between efficiency and systemic robustness in biology and beyond. And on how we define societal progress.
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Thomas Greb @thomasgreb.bsky.social · 07/04/2026
The 4th congress on strigolactone research will take place 5-8 October this year in beautiful Paris! Early bird registration extended until April 30. So, just go for it! ics2026.sciencesconf.org
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NASASpaceflight.com @nasaspaceflight.com · 02/04/2026
After years of preparation, Artemis II has launched from NASA's Kennedy Space Center, sending NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA astronaut Jeremy Hansen on humanity’s first crewed mission beyond low Earth orbit in over 50 years. www.youtube.com/watch?v=Ti2C...
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Michael Raissig @michaelraissig.bsky.social · 13/03/2026
Our Review "Development, Anatomy and Integrated Function of Grass Leaf Veins and Graminoid Stomata" is out doi.org/10.1146/annu... Alec Baird and I discuss the development and function of the anatomical structures that regulate water supply (leaf veins) and water demand (stomata) in the grass leaf.
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Universität Heidelberg @uniheidelberg.bsky.social · 11/03/2026
Universität Heidelberg verteidigt Status als Exzellenzuniversität – Rektorin Frauke Melchior: „Großartige Gemeinschaftsleistung hat zum Erfolg geführt“ www.uni-heidelberg.de/de/newsroom/... #universität #heidelberg #uniheidelberg #Exzellenzstrategie #ExStra
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Gesellschaft für Entwicklungsbiologie e.V. @gfeev.bsky.social · 11/03/2026
Anni Zhang (from @thomasgreb.bsky.social lab) takes us to the green side of development by investigating how "Transcriptional repression of auxin signaling by SMXL5 ensures robust phloem cell fate specification" in arabidopsis #GfE2026
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GreenRobust @greenrobust.de · 04/03/2026
Kick-off meeting of our GreenRobust cluster of excellence last week. Exciting times ahead for plant sciences by bringing together an extraordinary bunch of enthusiastic scientists and human beings!
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Isabel Monte @isabelmonte.bsky.social · 02/03/2026
Join us at the #SEBconference Florence 2026 to discuss #Plant Robustness! 🌱🔥 @kaspervangelderen.bsky.social and I are organising the P12 session "Plant robustness from molecules to ecosystems" with the support of @greenrobust.de Check the program and submit your abstract by March 6th! 👇
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GreenRobust @greenrobust.de · 27/02/2026
our cluster is searching for a technical assistant for supporting joint plant phenotyping experiments to be carried out at the University of Hohenheim www.uni-hohenheim.de/en/job-openi...
uni-hohenheim.de
Job vacancies: University of Hohenheim
Current job opportunities at the University of Hohenheim
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Katrin Heer @katrinheer.bsky.social · 19/02/2026
Postdoctoral position in Forest Genetics at @uni-freiburg.de with a focus on local adaptation and/or stress reaction of trees. The position combines research and teaching (4 SWS), and offers the opportunity to develop an independent research profile (4+ years).
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Pascal Hunziker @pascalhunziker.bsky.social · 18/02/2026
Our preprint on the first genome-scale resource for the tuber crop T. tuberosum is now online. Thanks to my co-authors and everyone involved. @cosheidelberg.bsky.social | @greenrobust.de | @klaus-tschira-stiftung.de | @gso-forresearchers.bsky.social
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Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 16/02/2026
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
Sainsbury Laboratory Symposium 2026 logo - Shaping Life-Mechanisms of Morphogenesis. Timelapse of a developing Arabidopsis leaf imaged at 9-12 days old under a confocal microscope, with cells segmented and coloured using MorphographX software. Images by Sarah Attrill.
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Yasin Dagdas @plantophagy.bsky.social · 12/02/2026
Cool story from @meristemania.bsky.social lab on growth-defense tradeoff at the shoot apical meristem www.biorxiv.org/content/10.6...
biorxiv.org
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COS Heidelberg @cosheidelberg.bsky.social · 10/02/2026
Two days of stimulating discussions with colleagues from @rdplab.bsky.social and @igflyon.bsky.social about science and life. Thanks for all the hospitality and engagement!
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Zayna Chaker @zaycha.bsky.social · 09/02/2026
Today is the kick start of our @igflyon.bsky.social @cosheidelberg.bsky.social @rdplab.bsky.social common 2-day retreat in Lyon, @ensdelyon.bsky.social ! Very diverse and exciting talks going from plants, algae to animals!
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GreenRobust @greenrobust.de · 06/02/2026
Our cluster of Excellence GreenRobust is looking for a scientific coordinator located at Heidelberg University. Please spread the word! www.academics.com/jobs/scienti...
academics.com
Scientific coordinator at the GreenRobust location Heidelberg (f/m/d) - Universität Heidelberg
Universität Heidelberg looks for Scientific coordinator at the GreenRobust location Heidelberg (f/m/d) in Heidelberg - apply now!
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the Node @the-node.bsky.social · 29/01/2026
It's that time of the month again for our featured #preprint list for December ⬇️ Welcome to our monthly trawl for developmental and stem cell biology (and related) preprints. thenode.biologists.com/december-in-...
thenode.biologists.com
December in preprints - the Node
Welcome to our monthly trawl for developmental and stem cell biology (and related) preprints. The preprints this month are hosted on bioRxiv.
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Dolf Weijers @dolfweijers.bsky.social · 28/01/2026
www.wur.nl/en/vacancy/f... Become our new colleague (and next door neighbor) and lead a chair/group/department of Biophysics at Wageningen University. Reach out to me for info and please spread!!!
wur.nl
Full Professor and Chair Laboratory of Biophysics
We are looking for a Full Professor in the Biophysics chair group, part of Wageningen University & Research (WUR)
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Bert De Rybel @bertderybel.bsky.social · 20/01/2026
Happy to present our latest: Evolutionary adaptations to the hormonal regulation of vascular tissue development | PNAS www.pnas.org/doi/10.1073/.... Work by Wei Xiao and funded by @erc.europa.eu
pnas.org
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...
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COS Heidelberg @cosheidelberg.bsky.social · 17/01/2026
Stimulating visit of students from Seoul National University (SNU) at COS, IMSEAM and central research facilities this week in the context of their Global Leadership Program. Exciting case of international student exchange @uniheidelberg.bsky.social
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edgardemesa.bsky.social @edgardemesa.bsky.social · 08/01/2026
It's finally out!... Using single-cell and spatial transcriptome data, and data imputation, we created BARVISTA, a website able to perform almost genome-wide information on gene expression profiles at single-cell resolution in barley spikes! www.nature.com/articles/s41...
nature.com
Imputation integrates single-cell and spatial gene expression data to resolve transcriptional networks in barley shoot meristem development - Nature Plants
Spatially resolved gene expression during barley development was done by integrating an scRNA-seq dataset from cells with unknown position with spatial transcriptomics. This dataset is publicly availa...
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GreenRobust @greenrobust.de · 05/01/2026
Not that this passes without being noticed: The GreenRobust cluster of excellence is officially alive since Jan 1, 2026! Looking forward to at least seven years of exciting science in the field of plant ecology, molecular biology, agriculture and the combination of all these fields. Stay tuned!
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Thomas Greb @thomasgreb.bsky.social · 21/12/2025
Did you ever wonder how a dividing cambium cell looks like and what determines its striking regular division? Xiomin Liu, PhD student in the lab, found out in a heroic histological approach. Fruitful collaboration with the group of Sabine Müller (@phragmoplast.bsky.social) doi.org/10.64898/202...
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René Schneider @schneiderlab.bsky.social · 17/12/2025
📣 Save the date! The GfE Meeting 2026 is coming to Potsdam 🇩🇪🌱 ✨ Four outstanding keynote speakers (Hans Clevers, Isabel Fariñas, Thomas Bosch, Frank Bradke) ✨ 🏅 Celebration of the Klaus Sander, Hilde Mangold, and José Campos-Ortega Awards 🏅 👉 www.uni-potsdam.de/en/gfe-meeti...
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Thomas Greb @thomasgreb.bsky.social · 15/12/2025
A very nice and skillful work by Agata Burian and colleagues characterizing the development of vascular strands around the Arabidopsis shoot apex: www.sciencedirect.com/science/arti...
sciencedirect.com
Self-organization of vascular strands drives their patterning in the Arabidopsis shoot apex
In plants, the development of the shoot vascular system is closely coordinated with lateral organ formation at the shoot apical meristem. Despite exte…
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COS Heidelberg @cosheidelberg.bsky.social · 12/12/2025
youtube.com/watch?v=KO3Q...
youtube.com
BioRevolution IV - Evolutionary Cell Biology meets Neurosciences.
YouTube video by Faculty of Biosciences Heidelberg University
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Yasin Dagdas @plantophagy.bsky.social · 11/12/2025
Today’s @cosheidelberg.bsky.social seminar is on 🍃 given by @hildenelissen.bsky.social from @psb-vib.bsky.social Really cool work all the way from mechanistic science to translation!!!
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Eva-Sophie Wallner @eswallner.bsky.social · 05/12/2025
A light-induced apical auxin signalling minimum marks the site of organogenesis and de novo meristem formation in Marchantia sporelings (now peer-reviewed): authors.elsevier.com/a/1mDc83QW8S...
authors.elsevier.com
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Maizel lab @maizel-lab.org · 01/12/2025
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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haopengyu.bsky.social @haopengyu.bsky.social · 28/10/2025
We’ve built this virtual plant scientist PlantScience.ai to grow alongside human researchers🌿. It thinks like an expert, cites like a scholar, and never stops learning. Come and have a chat with it! @yiliangding.bsky.social @johninnescentre.bsky.social www.biorxiv.org/content/10.1...
plantscience.ai
PlantScience.ai
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