Roeder Lab
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roederlab.bsky.social
Roeder Lab
@roederlab.bsky.social
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Research laboratory of PI Adrienne Roeder in the Weill Institute of Cell and Molecular Biology and the School of Integrative Plant Science at Cornell Univ. We study morphogenesis and pattern formation in Arabidopsis and diatoms.
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roederlab.bsky.social
Roeder Lab @roederlab.bsky.social · Nov 6
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.
plosbiology.org PLOS Biology @plosbiology.org · Nov 5
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
Cell-size patterning occurs as a basipetal wave simultaneously on the adaxial and abaxial sides of the leaf. Cell area heat maps in µm2 of leaf 1 or 2 at different stages of development on the abaxial side (Top Row) and on the adaxial side (Bottom Row) of the same leaf at 5, 6, 7, 8, and 9 dpg (half leaf). Unsegmented regions on adaxial leaves correspond to trichomes, which were not considered in this analysis. Each stage is associated with a distinct heat map color range. Scale bars represent 50 µm at 5 and 6 dpg, and 100 µm at 7, 8, and 9 dpg.
Reposted by Roeder Lab
aabiologists.bsky.social
Join our fantastic line-up of speakers #auxin2026!

@christatesterink.bsky.social, @tevavernoux.bsky.social, @dolfweijers.bsky.social, @srobertgroup.bsky.social, @estevezjosem.bsky.social, @minyaaa.bsky.social, @roederlab.bsky.social & more!

📆 Abstract deadline for talks: April 30th

#plantscience
January 8, 2026 at 1:12 PM
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weillinstitute.bsky.social
We are absolutely THRILLED to welcome our newest faculty member @tarafisch.bsky.social to the @weillinstitute.bsky.social community. We look forward to the exciting and impactful work ahead!

news.cornell.edu/stories/2026...
Weill Institute welcomes Tara Fischer as newest research member | Cornell Chronicle
Fischer investigates how cells detect and repair organelle damage, and how these processes influence inflammation and the progression of neurodegenerative disease.
news.cornell.edu
January 6, 2026 at 6:25 PM
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maddyseale.bsky.social
At the end of 2024 I did a chronological round up of all the #plantscience in @science.org that year.
So how did 2025 pan out? This year, I’m grouping papers thematically instead of chronologically so read on to find out what exciting plant science came out over the last 12 months. (1/22)
January 2, 2026 at 6:24 PM
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btiscience.bsky.social
Our 2026 Research Experiences for Undergraduates application is open! This experience provides undergraduate students with an opportunity to engage in research and professional development with a community of researchers. Visit https://cstu.io/720b02. Applications close 2/2.
A person in plant growth chamber is surrounded by green plants in pots placed on shelves. The background shows lighting fixtures and irrigation systems. Text on the image reads: “2026 REU Applications NOW OPEN. Become part of our plant science community and explore a diverse array of projects guided by passionate mentors specializing in genetics, genomics, bioinformatics, plant molecular biology, chemistry, and digital agriculture. Visit www.reu.btiscience.org to learn more!” A green plant-themed logo is displayed in the bottom right corner.
January 2, 2026 at 5:02 AM
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naascarabidopsis.bsky.social
Now available!
The NAASC 2025 Dissemination of Arabidopsis Knowledge Awards Webinar featuring Natanella Illouz-Eliaz (early career recipient), Dawn Nagel, Nicholas Provart & Anna Stepanova (later career recipients).
Congratulations to these community role models!
youtu.be/Lqatc-yUpmY
2025 Dissemination of Arabidopsis Knowledge: N. Illouz-Eliaz, D. Nagel, N. Provart & A. Stepanova
YouTube video by NAASC
youtu.be
December 18, 2025 at 9:45 PM
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tairnews.bsky.social
"Postdoc Position–Plant Translational RegulationandNovel Open Reading Frames at Michigan State University, East Lansing, MI, USA"

Read more here: https://arabidopsis.org/news/jobs/view?file=Polly_12-18-25.pdf

#PlantSciJobs
December 19, 2025 at 12:51 AM
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tairnews.bsky.social
"Postdoctoral position in Plant Molecular Synthetic Biology at University of Illinois at Urbana-Champaign, Urbana, IL, USA"

Read more here: https://arabidopsis.org/news/jobs/view?file=Chen_12-18-25.pdf

#PlantSciJobs
December 19, 2025 at 12:51 AM
roederlab.bsky.social
Join us! We are going to have a ton of fun this summer with 2 week projects on plant and animal morphogenesis! @maizel-lab.org is leading a module. For my section we are going to live image developing leaves.
kitp-ucsb.bsky.social Kavli Institute for Theoretical Physics @kitp-ucsb.bsky.social · Nov 19
Advanced grad students + postdocs: apply for the 2026 #kitpqbio summer course, "Physical Principles of Morphogenesis in Plants and Animals," at buff.ly/OXXMKEv. Apply by Feb. 1.
Course directors Adrienne Roeder (Cornell) and Sebastian Streichan (UCSB)
December 18, 2025 at 5:40 PM
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jeremybaskin.bsky.social
Totally fascinating results from @krishnanyamuna.bsky.social and coworkers on pH gradients *within individual cellular compartments*, upending dogma — read this thread! 👇
krishnanyamuna.bsky.social Yamuna Krishnan @krishnanyamuna.bsky.social · 24d
Organelles do NOT have a single uniform pH.
And if you think they must, because “protons diffuse fast,” this paper is for you.
A thread on why that assumption is wrong; and what we found instead. 🧵 1/n
December 17, 2025 at 1:45 PM
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maddyseale.bsky.social
Out First Release in @science.org
Insight into how auxin and ethylene determine whether cucumbers make male or female flowers:

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

#Plantscience
ARF3-mediated auxin signaling is essential for sex determination in cucumber
Sex determination underpins genesis of male and female flowers with particularly important implications in plant breeding. Auxin and ethylene regulate femaleness in cucurbits. Here, we identified an a...
www.science.org
December 17, 2025 at 1:41 PM
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peteretchells.bsky.social
Folks, our research group is looking for a new recruit. A research technician position is available (48 month contract). Please repost. durham.taleo.net/careersectio...
Senior Research Technician in Plant Tissue Culture and Genetics
Click the link provided to see the complete job description.
durham.taleo.net
December 13, 2025 at 10:05 PM
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bielleogy.bsky.social
Just discovered this series from the Frontiers Journal specifically meant for kids:

kids.frontiersin.org
Frontiers for Young Minds
Frontiers for Young Minds is an open-access scientific journal written by scientists and reviewed by a board of kids and teens.
kids.frontiersin.org
December 13, 2025 at 10:39 PM
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spencerlaveresmith.bsky.social
UCSB’s Munger Residence is science’s Chateau Marmont.

@kitp-ucsb.bsky.social
December 12, 2025 at 3:52 AM
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weillinstitute.bsky.social
👏 Congrats to postdoc Lanxi Hu, member of @roederlab.bsky.social, for being selected as the 2025 Weill Institute Fleming Fellowship recipient, for her research on how plant tissues keep their shape under stress and how those insights inspire adaptive design. 🌱 🧑‍🔬 news.cornell.edu/stories/2025...
Weill Institute for Cell and Molecular Biology awards 2025 Fleming Fellowship | Cornell Chronicle
For research excellence into how living structures recover and preserve order in morphology amid constant disruption, postdoctoral scientist Lanxi Hu has been awarded the Weill Institute for Cell and ...
news.cornell.edu
December 10, 2025 at 7:23 PM
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natclarke.bsky.social
Interested in cell adhesion, evolution of multicellularity, or developing tools for emerging marine models?

My lab at UM is hiring a postdoc, and the application is now open:
🔗 tinyurl.com/28jvu4aa

If you know anyone looking for a postdoc, please pass this along!
December 8, 2025 at 6:37 PM
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weibingyang.bsky.social
Thrilled to have our paper out in @science.org. Cell division guides plant cell wall formation. Does the reverse hold? We show that bimodal pectin methylesterification, via PME5 mRNA nuclear sequestration, influences plant cell division and cell plate orientation. www.science.org/doi/10.1126/...
Cell wall patterning regulates plant stem cell dynamics
The plant cell wall regulates development through spatiotemporal modulation of its chemical and mechanical properties. Pectin methylesterification is recognized as a rheological switch controlling wal...
www.science.org
December 6, 2025 at 10:11 AM
roederlab.bsky.social
I first tried and failed to determine the ploidy from fluorescent nuclei when I was a postdoc. It is really nice to have this new iSPy pipeline to do that. Turns out I was using the wrong promoter. I can't wait for my lab to use this on lots of images.
December 6, 2025 at 4:32 AM
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pauformosa.bsky.social
Press release on our new work about inferring Spatial Ploidy (iSPy), a collaboration with the @roederlab.bsky.social and the Fox Lab, with @nickrussell31.bsky.social being the first author @mpipz.bsky.social @cp-cellrepmethods.bsky.social www.mpipz.mpg.de/5771290/pr-f...
Shining a Spotlight on Polyploid Cells – a tool to uncover spatial patterns of DNA content across tissues
Several research teams have collaborated to develop a new computing pipeline that enables high-throughput quantification of ploidy, i.e., the number of copies of chromosomes, in different tissues base...
www.mpipz.mpg.de
December 5, 2025 at 3:24 PM
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morgancarterphd.bsky.social
We are hiring!! Biological Sciences as UNC Charlotte has a broad search for a new assistant professor.
Apps reviewed 12/15.

Please spread the word! 💚⛏️
#PlantSci 🧪🦠🧬
jobs.charlotte.edu/postings/65141
Assistant Professor
Applicants should possess a Ph.D. in the biological sciences or related fields.Candidates are expected to document expertise in their specialty by a record of postdoctoral training, peer reviewed publ...
jobs.charlotte.edu
November 17, 2025 at 2:52 PM
roederlab.bsky.social
Fun to get to highlight Minya's @minyaaa.bsky.social new paper in @currentbiology.bsky.social authors.elsevier.com/a/1mCCK3QW8S...
December 3, 2025 at 4:17 AM
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carolynplants.bsky.social
#FluorescenceFriday check out this time projection of microtubules in a katanin maize mutant taken by PhD student Steph Martinez 🔬
Microtubules at the cell cortex in maize epidermal cells, where red represents the beginning, white means no change and cyan at the end
November 22, 2025 at 3:34 AM
roederlab.bsky.social
I just received this lovely Arabidopsis mug celebrating my 5 years of service on the North American Arabidopsis Steering Committee (@naascarabidopsis.bsky.social).
Hand made mug with Arabidopsis plant decoration
November 19, 2025 at 2:51 AM
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apmahonen.bsky.social
We found that cytokinin-induced LBDs drive radial (secondary) growth in Arabidopsis root by reshaping primary cell wall pectin, in part through four pectate-lyase-like genes. Huge congrats to the fantastic postdocs who led this work: Lingling Ye and Xin Wang. 1/x www.nature.com/articles/s41...
Cambium LBDs promote radial growth by regulating PLL-mediated pectin metabolism - Nature Plants
This study reveals that LBD transcription factors in the cambium drive radial plant growth by regulating PECTATE LYASE-LIKE (PLL) enzymes that remodel cell wall pectin, promoting cell expansion.
www.nature.com
November 17, 2025 at 7:11 PM
Reposted by Roeder Lab
gweissbart.bsky.social
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
November 17, 2025 at 9:33 AM