Gauthier Weissbart
@gweissbart.bsky.social
PhD graduated from MPIPZ. Biophysics | Self-organization | Plants. For science-society dialogue.
Why are leaf cells of so many different sizes?
Our paper explores how giant cells form!
We also provide automatic cell-type classification and perform statistical quantification of cell spatial organization.
If interested, check it out in @plosbiology.org. Thanks Pau and @roederlab.bsky.social
Our paper explores how giant cells form!
We also provide automatic cell-type classification and perform statistical quantification of cell spatial organization.
If interested, check it out in @plosbiology.org. Thanks Pau and @roederlab.bsky.social
Check out our story in @plosbiology.org about how a nonrandom, clustered giant cell pattern forms in the sepal and leaf epidermis! It has been a great journey with @gweissbart.bsky.social, Frances Clark, Xihang Wang, @roederlab.bsky.social and co-authors.
journals.plos.org/plosbiology/...
journals.plos.org/plosbiology/...
A common pathway controls cell size in the sepal and leaf epidermis leading to a nonrandom pattern of giant cells
Arabidopsis leaf epidermal cells have a wide range of sizes and ploidies, but the mechanisms patterning their size and spatial distribution remain unclear. This study shows that the pathway controllin...
journals.plos.org
November 17, 2025 at 9:33 AM
Why are leaf cells of so many different sizes?
Our paper explores how giant cells form!
We also provide automatic cell-type classification and perform statistical quantification of cell spatial organization.
If interested, check it out in @plosbiology.org. Thanks Pau and @roederlab.bsky.social
Our paper explores how giant cells form!
We also provide automatic cell-type classification and perform statistical quantification of cell spatial organization.
If interested, check it out in @plosbiology.org. Thanks Pau and @roederlab.bsky.social
Check out this highlight of our story on how cells control their size and form nonrandom patterns in leaves (and sepals)! 🍃
A really nice highlight of our recent PLOS Biology paper on leaf giant cells with Frances Clark, @gweissbart.bsky.social , Xihang Wang, and @pauformosa.bsky.social from @cornelluniversity.bsky.social news.cornell.edu/stories/2025...
Randomness reveals hidden order in the plant world | Cornell Chronicle
Findings from a recent study show how randomness and growth together create the striking cellular patterns that shape plant organs—and perhaps all multicellular life.
news.cornell.edu
November 17, 2025 at 9:18 AM
Check out this highlight of our story on how cells control their size and form nonrandom patterns in leaves (and sepals)! 🍃
Reposted by Gauthier Weissbart
Ever wondered what drives enhancer-promoter specificity? Why would an enhancer activate one gene rather than another neighboring one?
Check our latest preprint, led by @mmasoura.bsky.social, to find out!
www.biorxiv.org/content/10.1...
Check our latest preprint, led by @mmasoura.bsky.social, to find out!
www.biorxiv.org/content/10.1...
Promoter-proximal gatekeepers restrict pleiotropic enhancer inputs to achieve tissue specificity
Developmental enhancers are central regulatory elements that can activate multiple genes, yet how they selectively regulate one gene over its neighbours remains unclear. Using the Drosophila twist E3 ...
www.biorxiv.org
October 16, 2025 at 12:34 PM
Ever wondered what drives enhancer-promoter specificity? Why would an enhancer activate one gene rather than another neighboring one?
Check our latest preprint, led by @mmasoura.bsky.social, to find out!
www.biorxiv.org/content/10.1...
Check our latest preprint, led by @mmasoura.bsky.social, to find out!
www.biorxiv.org/content/10.1...
Reposted by Gauthier Weissbart
Excited to announce our paper is out! Congrats to @pauformosa.bsky.social, @gweissbart.bsky.social, Frances Clark, and Xihang Wang on this fun and beautiful story. We answered a question about the randomness of giant cell spacing that I have had for at least 15 years.
How are #plant #leaf epidermal cells patterned? @roederlab.bsky.social &co show that the pathway controlling #GiantCell formation in #sepals also controls cell size in #Arabidopsis leaves, via cell-autonomous & stochastic specification @plosbiology.org 🧪 plos.io/491F1qQ
November 6, 2025 at 2:35 AM
Excited to announce our paper is out! Congrats to @pauformosa.bsky.social, @gweissbart.bsky.social, Frances Clark, and Xihang Wang on this fun and beautiful story. We answered a question about the randomness of giant cell spacing that I have had for at least 15 years.
During my PhD, I realized the hardest moments weren’t the work itself, but the psychological challenges. We see lots of productivity tips, but PhD students aren’t machines - they're complex human beings. 🫂 Glad to see well-being in @nature.com 'career column 🍀
www.nature.com/articles/d41...
www.nature.com/articles/d41...
You’re only human: a six-step strategy to surviving your PhD
Graduate students are not machines. Behaving like one during your programme will leave you frustrated and unfulfilled, says Gauthier Weissbart.
www.nature.com
April 17, 2025 at 8:43 AM
During my PhD, I realized the hardest moments weren’t the work itself, but the psychological challenges. We see lots of productivity tips, but PhD students aren’t machines - they're complex human beings. 🫂 Glad to see well-being in @nature.com 'career column 🍀
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Reposted by Gauthier Weissbart
Spatial ploidy inference using quantitative imaging, our new collaborative work in the Polyploidy Integration & Innovative Institute, with the @roederlab.bsky.social and the Fox lab. Try our pipeline with your images!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
March 18, 2025 at 1:58 PM
Spatial ploidy inference using quantitative imaging, our new collaborative work in the Polyploidy Integration & Innovative Institute, with the @roederlab.bsky.social and the Fox lab. Try our pipeline with your images!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Gauthier Weissbart
Is giant cell patterning random in sepals and leaves? Check out our new work combining quantitative microscopy, computational methods and modeling, a great collaboration with the Roeder Lab, with F.Clark, G.Weissbart, X.Wang, A.Roeder and co-authors! @ceplas.bsky.social
biorxiv.org/content/10.1...
biorxiv.org/content/10.1...
August 2, 2024 at 6:54 PM
Is giant cell patterning random in sepals and leaves? Check out our new work combining quantitative microscopy, computational methods and modeling, a great collaboration with the Roeder Lab, with F.Clark, G.Weissbart, X.Wang, A.Roeder and co-authors! @ceplas.bsky.social
biorxiv.org/content/10.1...
biorxiv.org/content/10.1...